chore: release v3.96.2

* perf: allow sharding for trace upsert queue

* chore: handle metrics for traceupsertqueue

* chore: remove outdated comment

* chore: test util upgrade

* chore: patch typing

.claude/settings.json

@@ -0,0 +1,14 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(find:*)",
+      "Bash(rg:*)",
+      "Bash(grep:*)",
+      "Bash(ls:*)",
+      "Bash(cat:*)",
+      "Bash(head:*)",
+      "Bash(tail:*)"
+    ],
+    "deny": []
+  }
+}

.codespellrc

@@ -1,4 +1,4 @@
 [codespell]
 skip = .git,*.pdf,*.svg,package-lock.json,*.prisma,pnpm-lock.yaml
-ignore-words-list = afterall,vertx,notIn
+ignore-words-list = afterall,vertx,notIn,alue
 

.cursor/Dockerfile

@@ -0,0 +1,54 @@
+FROM node:20
+
+# ---------- System packages --------------------------------------------------
+# The buildpack-deps base already ships git, build-essential, python, etc.
+# Add a few extra tools handy during Langfuse development.
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+      openssl \
+      wget \
+      curl \
+      ca-certificates \
+      postgresql-client \
+      redis-tools \
+      less nano \
+      sudo \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---------- Docker -----------------------------------------------------------
+# Install Docker for background agents that need container capabilities
+RUN curl -fsSL https://get.docker.com -o get-docker.sh && \
+    sh get-docker.sh && \
+    rm get-docker.sh
+
+# ---------- pnpm -------------------------------------------------------------
+# Langfuse monorepo relies on pnpm 9.5.0 (see CONTRIBUTING.md)
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN corepack enable && \
+    corepack prepare pnpm@9.5.0 --activate
+
+# ---------- golang-migrate ----------------------------------------------------
+# CLI used for database migrations during development.
+ENV MIGRATE_VERSION=4.18.3
+RUN wget -qO- "https://github.com/golang-migrate/migrate/releases/download/v${MIGRATE_VERSION}/migrate.linux-amd64.tar.gz" \
+    | tar -xz -C /usr/local/bin && \
+    chmod +x /usr/local/bin/migrate
+
+# ---------- Non-root user -----------------------------------------------------
+# Create non-root user with sudo privileges and docker group access
+RUN useradd -ms /bin/bash ubuntu && \
+    usermod -aG sudo ubuntu && \
+    usermod -aG docker ubuntu && \
+    echo "ubuntu ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+# Pre-create pnpm store and set correct ownership to avoid first-run cost & permission issues
+RUN pnpm store path > /dev/null && \
+    chown -R ubuntu:ubuntu /pnpm
+
+USER ubuntu
+WORKDIR /home/ubuntu
+ENV HOME=/home/ubuntu
+
+# Container starts with a bash shell ready for hacking.
+CMD ["bash"]

.cursor/environment.json

@@ -0,0 +1,14 @@
+{
+  "install": "cp .env.dev.example .env && pnpm i",
+  "build": {
+    "context": ".",
+    "dockerfile": "Dockerfile"
+  },
+  "start": "sudo service docker start",
+  "terminals": [
+    {
+      "name": "dev server",
+      "command": "pnpm run dx-f"
+    }
+  ]
+}

.cursor/rules/authorization-and-rbac.mdc

@@ -0,0 +1,6 @@
+---
+description: How to manage authorization and RBAC within full-stack langfuse features
+globs: web/
+alwaysApply: true
+---
+See [README.md](mdc:web/src/features/rbac/README.md) for details

.cursor/rules/entitlements.mdc

@@ -0,0 +1,7 @@
+---
+description: How to enforce entitlements across full-stack features
+globs: web/**
+alwaysApply: true
+---
+
+Check [README.md](mdc:web/src/features/entitlements/README.md) to learn more about entitlements

.cursor/rules/frontend-features.mdc

@@ -0,0 +1,33 @@
+---
+description: How we build new full-stack features including frontend APIs, file structure, and components
+globs: web/**
+alwaysApply: true
+---
+## Framework
+
+- Next.js
+- Pages router
+
+## File Structure
+
+- We generally put all code related to a net-new feature into a folder within web/src/features.
+- Check out other features to learn about the common structure.
+
+## API for frontend features
+
+- We use TRPC.io to power full-stack features of the Langfuse Frontend
+  - Entry point for all trpc routes: [root.ts](mdc:web/src/server/api/root.ts)
+- Authentication, see [authorization-and-rbac.mdc](mdc:.cursor/rules/authorization-and-rbac.mdc)
+- Entitlements, see [entitlements.mdc](mdc:.cursor/rules/entitlements.mdc)
+
+## Components
+
+- We use Shadcn/ui
+  - Components in `@/src/components/ui`
+  - If a component is not installed yet, ask the user to install it for you
+- When creating new custom components that generalize, we add them with a generalizable naming to `@/src/components`
+
+## Styling
+
+- We use Tailwind CSS
+- We use a standard color palette which automatically handles light/dark mode, see [globals.css](mdc:web/src/styles/globals.css)

.cursor/rules/general-info.mdc

@@ -0,0 +1,9 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+# General rules
+
+- Linting in this repo only works if the development server is running
+- Always run the full mono-repo via `pnpm run dx` (use `pnpm dx-f` when you run this in a background agent). Thereby the database will also be seeded.

.cursor/rules/global.mdc

@@ -0,0 +1,20 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+## Project setup
+- This project is a Turborepo monorepo
+- We build two containers, web (./web) and worker (./worker)
+- We have shared code between these two in the shared package (./packages/shared). For that package, we have different entry points [package.json](mdc:packages/shared/package.json).
+
+
+## Domain layer
+The most important domain objects are in [observations.ts](mdc:packages/shared/src/domain/observations.ts), [traces.ts](mdc:packages/shared/src/domain/traces.ts), [scores.ts](mdc:packages/shared/src/domain/scores.ts).
+
+
+## Database schema
+We use Postgres and Clickhouse.
+- The postgres schema is in [schema.prisma](mdc:packages/shared/prisma/schema.prisma)
+- The clickhouse schema is in [0001_traces.up.sql](mdc:packages/shared/clickhouse/migrations/clustered/0001_traces.up.sql), [0002_observations.up.sql](mdc:packages/shared/clickhouse/migrations/clustered/0002_observations.up.sql), [0003_scores.up.sql](mdc:packages/shared/clickhouse/migrations/clustered/0003_scores.up.sql)
+

.cursor/rules/public-api.mdc

@@ -0,0 +1,17 @@
+---
+description: How to create new public api routes for Langfuse
+globs:
+alwaysApply: false
+---
+
+# Implementation
+
+- All public api routes are in /web/src/pages/api/public
+- New api routes should follow these guidelines:
+  - Use [withMiddlewares.ts](mdc:web/src/features/public-api/server/withMiddlewares.ts) as a wrapper
+  - Define types of api request and response in /web/src/features/public-api/types, use strict() for all zod objects
+  - Add end-to-end test, similar to [datasets-api.servertest.ts](mdc:web/src/__tests__/async/datasets-api.servertest.ts)
+  - Add fern configuration in /fern, learn more about structure here: https://buildwithfern.com/learn/api-definition/fern/overview
+  - Prompt user to regenerate the OpenAPI spec via the fern CLI
+  - Pagination starts at 1, query typing defined in publicApiPaginationZod, return meta in paginationMetaResponseZod
+- For tests, please look at [this directory](mdc:web/src/__tests__/async/) for examples

.cursor/rules/tests.mdc

@@ -0,0 +1,9 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+# Writing tests
+
+- When writing tests, focus on decoupling each `it` or `test` block to ensure that they can run independently and concurrently. Tests must never depend on the action or outcome of previous or subsequent tests.
+- When writing tests, especially in the __tests__/async directory, ensure that you avoid `pruneDatabase` calls.

.devcontainer/Dockerfile

@@ -0,0 +1,13 @@
+# Dev container Dockerfile
+FROM mcr.microsoft.com/vscode/devcontainers/typescript-node:20-bookworm
+
+# Install golang-migrate for database migrations
+RUN curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz && \
+    chmod +x migrate && \
+    mv migrate /usr/local/bin/migrate
+
+# Install pnpm globally
+RUN npm install -g pnpm@9.5.0
+
+# Install Claude Code CLI
+RUN npm install -g @anthropic-ai/claude-code

.devcontainer/devcontainer.json

@@ -0,0 +1,8 @@
+{
+  "name": "langfuse-development",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "forwardPorts": [3000, 5432, 6379, 8123, 9000],
+  "postCreateCommand": "cp .env.dev.example .env && pnpm i"
+}

.env.dev-azure.example

@@ -68,6 +68,7 @@ LANGFUSE_S3_EVENT_UPLOAD_FORCE_PATH_STYLE=true
 LANGFUSE_S3_EVENT_UPLOAD_PREFIX=events/
 
 LANGFUSE_USE_AZURE_BLOB=true
+LANGFUSE_AZURE_SKIP_CONTAINER_CHECK=false
 
 # Set during docker build of application
 # Used to disable environment verification at build time

.env.dev-redis-cluster.example

@@ -45,7 +45,7 @@ LANGFUSE_S3_BATCH_EXPORT_ENDPOINT=http://localhost:9090
 LANGFUSE_S3_BATCH_EXPORT_FORCE_PATH_STYLE=true
 LANGFUSE_S3_BATCH_EXPORT_PREFIX=exports/
 
-# # S3 Media Upload LOCAL
+# S3 Media Upload LOCAL
 LANGFUSE_S3_MEDIA_UPLOAD_BUCKET=langfuse
 LANGFUSE_S3_MEDIA_UPLOAD_ACCESS_KEY_ID=minio
 LANGFUSE_S3_MEDIA_UPLOAD_SECRET_ACCESS_KEY=miniosecret
@@ -72,7 +72,11 @@ LANGFUSE_S3_EVENT_UPLOAD_PREFIX=events/
 
 REDIS_HOST="127.0.0.1"
 REDIS_PORT=6379
-REDIS_AUTH="myredissecret"
+REDIS_AUTH="bitnami"
+REDIS_CLUSTER_ENABLED="true"
+REDIS_CLUSTER_NODES="127.0.0.1:6370,127.0.0.1:6371,127.0.0.1:6372,127.0.0.1:6373,127.0.0.1:6374,127.0.0.1:6375"
+LANGFUSE_INGESTION_QUEUE_SHARD_COUNT=8
+LANGFUSE_TRACE_UPSERT_QUEUE_SHARD_COUNT=4
 
 # openssl rand -hex 32 used only here
 ENCRYPTION_KEY=0000000000000000000000000000000000000000000000000000000000000000 
@@ -80,7 +84,10 @@ ENCRYPTION_KEY=0000000000000000000000000000000000000000000000000000000000000000
 # speeds up local development by not executing init scripts on server startup
 NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT="false"
 
-LANGFUSE_READ_FROM_POSTGRES_ONLY=true
-LANGFUSE_RETURN_FROM_CLICKHOUSE=false
-LANGFUSE_READ_DASHBOARDS_FROM_CLICKHOUSE=false
-LANGFUSE_READ_FROM_CLICKHOUSE_ONLY=false
+# Use the following settings to enforce running the new AMTs during the tests
+LANGFUSE_EXPERIMENT_INSERT_INTO_AGGREGATING_MERGE_TREES="true"
+LANGFUSE_EXPERIMENT_COMPARE_READ_FROM_AGGREGATING_MERGE_TREES="true"
+LANGFUSE_EXPERIMENT_WHITELISTED_PROJECT_IDS="7a88fb47-b4e2-43b8-a06c-a5ce950dc53a"
+LANGFUSE_EXPERIMENT_ADD_QUERY_RESULT_TO_SPAN_PROJECT_IDS="7a88fb47-b4e2-43b8-a06c-a5ce950dc53a"
+LANGFUSE_EXPERIMENT_RETURN_NEW_RESULT="true"
+LANGFUSE_EXPERIMENT_SAMPLING_RATE=1

.env.dev.example

@@ -75,7 +75,16 @@ REDIS_PORT=6379
 REDIS_AUTH="myredissecret"
 
 # openssl rand -hex 32 used only here
-ENCRYPTION_KEY=0000000000000000000000000000000000000000000000000000000000000000 
+ENCRYPTION_KEY=0000000000000000000000000000000000000000000000000000000000000000
 
 # speeds up local development by not executing init scripts on server startup
 NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT="false"
+
+# For SDK integration tests to pass, decrease the ingestion queue delay by uncommenting the env vars:
+# LANGFUSE_INGESTION_QUEUE_DELAY_MS=10
+# LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS=10
+
+# Slack credentials for development
+SLACK_CLIENT_ID=your_slack_client_id
+SLACK_CLIENT_SECRET=your_slack_client_secret
+SLACK_STATE_SECRET=your_slack_state_secret

.env.prod.example

@@ -65,37 +65,61 @@ OTEL_SERVICE_NAME="langfuse"
 # AUTH_GOOGLE_CLIENT_SECRET=
 # AUTH_GOOGLE_ALLOW_ACCOUNT_LINKING=false
 # AUTH_GOOGLE_ALLOWED_DOMAINS=langfuse.com,google.com # optional allowlist of workspace domains that can sign in via Google
+# AUTH_GOOGLE_CLIENT_AUTH_METHOD=
+# AUTH_GOOGLE_CHECKS=
 # AUTH_GITHUB_CLIENT_ID=
 # AUTH_GITHUB_CLIENT_SECRET=
 # AUTH_GITHUB_ALLOW_ACCOUNT_LINKING=false
+# AUTH_GITHUB_CLIENT_AUTH_METHOD=
+# AUTH_GITHUB_CHECKS=
 # AUTH_GITHUB_ENTERPRISE_CLIENT_ID=
 # AUTH_GITHUB_ENTERPRISE_CLIENT_SECRET=
 # AUTH_GITHUB_ENTERPRISE_BASE_URL=
 # AUTH_GITHUB_ENTERPRISE_ALLOW_ACCOUNT_LINKING=false
+# AUTH_GITHUB_ENTERPRISE_CLIENT_AUTH_METHOD=
+# AUTH_GITHUB_ENTERPRISE_CHECKS=
 # AUTH_GITLAB_CLIENT_ID=
 # AUTH_GITLAB_CLIENT_SECRET=
 # AUTH_GITLAB_ALLOW_ACCOUNT_LINKING=false
 # AUTH_GITLAB_ISSUER=
+# AUTH_GITLAB_CLIENT_AUTH_METHOD=
+# AUTH_GITLAB_CHECKS=
+# AUTH_GITLAB_URL=
 # AUTH_AZURE_AD_CLIENT_ID=
 # AUTH_AZURE_AD_CLIENT_SECRET=
 # AUTH_AZURE_AD_TENANT_ID=
-# AUTH_AZURE_ALLOW_ACCOUNT_LINKING=false
+# AUTH_AZURE_AD_ALLOW_ACCOUNT_LINKING=false
+# AUTH_AZURE_AD_CLIENT_AUTH_METHOD=
+# AUTH_AZURE_AD_CHECKS=
 # AUTH_OKTA_CLIENT_ID=
 # AUTH_OKTA_CLIENT_SECRET=
 # AUTH_OKTA_ISSUER=
 # AUTH_OKTA_ALLOW_ACCOUNT_LINKING=false
+# AUTH_OKTA_CLIENT_AUTH_METHOD=
+# AUTH_OKTA_CHECKS=
 # AUTH_AUTH0_CLIENT_ID=
 # AUTH_AUTH0_CLIENT_SECRET=
 # AUTH_AUTH0_ISSUER=
 # AUTH_AUTH0_ALLOW_ACCOUNT_LINKING=false
+# AUTH_AUTH0_CLIENT_AUTH_METHOD=
+# AUTH_AUTH0_CHECKS=
 # AUTH_COGNITO_CLIENT_ID=
 # AUTH_COGNITO_CLIENT_SECRET=
 # AUTH_COGNITO_ISSUER=
 # AUTH_COGNITO_ALLOW_ACCOUNT_LINKING=false
+# AUTH_COGNITO_CLIENT_AUTH_METHOD=
+# AUTH_COGNITO_CHECKS=
 # AUTH_KEYCLOAK_CLIENT_ID=
 # AUTH_KEYCLOAK_CLIENT_SECRET=
 # AUTH_KEYCLOAK_ISSUER=
 # AUTH_KEYCLOAK_ALLOW_ACCOUNT_LINKING=false
+# AUTH_KEYCLOAK_CLIENT_AUTH_METHOD=
+# AUTH_KEYCLOAK_CHECKS=
+# AUTH_WORKOS_CLIENT_ID=
+# AUTH_WORKOS_CLIENT_SECRET=
+# AUTH_WORKOS_ALLOW_ACCOUNT_LINKING=false
+# AUTH_WORKOS_ORGANIZATION_ID=
+# AUTH_WORKOS_CONNECTION_ID=
 # AUTH_CUSTOM_CLIENT_ID=
 # AUTH_CUSTOM_CLIENT_SECRET=
 # AUTH_CUSTOM_ISSUER=
@@ -103,6 +127,9 @@ OTEL_SERVICE_NAME="langfuse"
 # AUTH_CUSTOM_SCOPE="openid email profile" # optional
 # AUTH_CUSTOM_CLIENT_AUTH_METHOD="client_secret_basic" # optional
 # AUTH_CUSTOM_ALLOW_ACCOUNT_LINKING=false
+# AUTH_CUSTOM_ID_TOKEN=false # optional, default is true
+# AUTH_CUSTOM_CLIENT_AUTH_METHOD=
+# AUTH_CUSTOM_CHECKS=
 
 # Transactional email, optional
 # Defines the email address to use as the from address.
@@ -130,10 +157,6 @@ OTEL_SERVICE_NAME="langfuse"
 # LANGFUSE_S3_EVENT_UPLOAD_ACCESS_KEY_ID=
 # LANGFUSE_S3_EVENT_UPLOAD_SECRET_ACCESS_KEY=
 
-# Exports are streamed to S3 in pages to avoid memory issues
-# The page size can be adjusted if needed to optimize performance
-# DB_EXPORT_PAGE_SIZE=1000
-
 # Automated provisioning of default resources
 # LANGFUSE_INIT_ORG_ID=org-id
 # LANGFUSE_INIT_ORG_NAME=org-name
@@ -145,7 +168,37 @@ OTEL_SERVICE_NAME="langfuse"
 # LANGFUSE_INIT_USER_NAME=User Name
 # LANGFUSE_INIT_USER_PASSWORD=password
 
+# Redis configuration
+# REDIS_HOST=
+# REDIS_PORT=
+# REDIS_AUTH=
+# REDIS_USERNAME=default
+# REDIS_CONNECTION_STRING=
+# REDIS_ENABLE_AUTO_PIPELINING=
 
+# Redis Cluster configuration (optional)
+# REDIS_CLUSTER_ENABLED=false
+# REDIS_CLUSTER_NODES=redis-node1:6379,redis-node2:6379,redis-node3:6379
+
+# Cache configuration
+# LANGFUSE_CACHE_API_KEY_ENABLED=
+# LANGFUSE_CACHE_API_KEY_TTL_SECONDS=
+# LANGFUSE_CACHE_PROMPT_ENABLED=
+# LANGFUSE_CACHE_PROMPT_TTL_SECONDS=
+
+# Clickhouse configuration
+# CLICKHOUSE_URL=
+# CLICKHOUSE_CLUSTER_NAME=default
+# CLICKHOUSE_DB=default
+# CLICKHOUSE_USER=
+# CLICKHOUSE_PASSWORD=
+# CLICKHOUSE_CLUSTER_ENABLED=true
+
+# Ingestion configuration
+# LANGFUSE_INGESTION_QUEUE_DELAY_MS=
+# LANGFUSE_INGESTION_CLICKHOUSE_WRITE_BATCH_SIZE=
+# LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS= 
+# LANGFUSE_INGESTION_CLICKHOUSE_MAX_ATTEMPTS=
 
 ### START Enterprise Edition Configuration
 
@@ -163,21 +216,12 @@ OTEL_SERVICE_NAME="langfuse"
 # LANGFUSE_UI_DEFAULT_BASE_URL_OPENAI=https://api.openai.com/v1
 # LANGFUSE_UI_DEFAULT_BASE_URL_ANTHROPIC=https://api.anthropic.com
 # LANGFUSE_UI_DEFAULT_BASE_URL_AZURE_OPENAI=https://{instanceName}.openai.azure.com/openai/deployments
+# LANGFUSE_UI_VISIBLE_PRODUCT_MODULES=
+# LANGFUSE_UI_HIDDEN_PRODUCT_MODULES=
 
 ### END Enterprise Edition Configuration
 
 
-
-### START Envs to be deprecated in Langfuse v3.0
-
-# Disable the expensive analytics queries and related features
-# LANGFUSE_DISABLE_EXPENSIVE_POSTGRES_QUERIES="true"
-
-### END Envs to be deprecated in Langfuse v3.0
-
-
-
-
 ### START Langfuse Cloud Config
 # Used for Langfuse Cloud deployments
 # Not recommended for self-hosted deployments as these are NOT COVERED BY SEMANTIC VERSIONING
@@ -209,24 +253,16 @@ OTEL_SERVICE_NAME="langfuse"
 # NEXT_PUBLIC_DEMO_ORG_ID=
 # NEXT_PUBLIC_DEMO_PROJECT_ID=
 
-# Crisp chat
-# NEXT_PUBLIC_CRISP_WEBSITE_ID=
+# Plain Chat
+# NEXT_PUBLIC_PLAIN_APP_ID=
+# PLAIN_AUTHENTICATION_SECRET=
+# PLAIN_API_KEY=
+# PLAIN_CARDS_API_TOKEN=
 
 # Admin API
 # ADMIN_API_KEY=
-
-# Redis
-# REDIS_HOST=
-# REDIS_PORT=
-# REDIS_AUTH=
-# REDIS_CONNECTION_STRING=
-# REDIS_ENABLE_AUTO_PIPELINING=
-
-# Cache configuration
-# LANGFUSE_CACHE_API_KEY_ENABLED=
-# LANGFUSE_CACHE_API_KEY_TTL_SECONDS=
-# LANGFUSE_CACHE_PROMPT_ENABLED=
-# LANGFUSE_CACHE_PROMPT_TTL_SECONDS=
+# LANGFUSE_CACHE_MODEL_MATCH_ENABLED=
+# LANGFUSE_CACHE_MODEL_MATCH_TTL_SECONDS=
 
 # Rate limiting
 # LANGFUSE_RATE_LIMITS_ENABLED=
@@ -235,24 +271,15 @@ OTEL_SERVICE_NAME="langfuse"
 # STRIPE_SECRET_KEY=
 # STRIPE_WEBHOOK_SIGNING_SECRET=
 
+# Betterstack Status Page
+# BETTERSTACK_UPTIME_API_KEY=
+# BETTERSTACK_UPTIME_STATUS_PAGE_ID=
+
 ### END Langfuse Cloud Config
 
 
-## START Langfuse V3 Ingestion 
+### START Langfuse CI Config
 
-# Clickhouse
-# CLICKHOUSE_MIGRATION_URL=
-# CLICKHOUSE_URL=
-# CLICKHOUSE_USER=
-# CLICKHOUSE_PASSWORD=
-# CLICKHOUSE_DB=
+# LANGFUSE_INIT_ORG_CLOUD_PLAN=
 
-# Ingestion
-# LANGFUSE_INGESTION_QUEUE_DELAY_MS=
-# LANGFUSE_INGESTION_CLICKHOUSE_WRITE_BATCH_SIZE=
-# LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS= 
-# LANGFUSE_INGESTION_CLICKHOUSE_MAX_ATTEMPTS=
-# LANGFUSE_LEGACY_INGESTION_WORKER_CONCURRENCY=
-# QUEUE_CONSUMER_LEGACY_INGESTION_QUEUE_IS_ENABLED="true"
-
-## END Langfuse V3 Ingestion
+### END Langfuse CI Config

.env.test.example

@@ -0,0 +1,12 @@
+# Test Environment Configuration
+# Copy this file to .env.test for test database isolation
+# Only overrides specific test variables - other values inherited from .env
+
+# PostgreSQL - Test Database
+DIRECT_URL="postgresql://postgres:postgres@localhost:5432/langfuse_test"
+DATABASE_URL="postgresql://postgres:postgres@localhost:5432/langfuse_test"
+
+# ClickHouse - Use Default Database for now, nothing set
+
+# Redis - Test Database (database 1 for isolation)
+REDIS_CONNECTION_STRING="redis://:myredissecret@127.0.0.1:6379/1"

.github/PULL_REQUEST_TEMPLATE.md

@@ -28,7 +28,7 @@ Fixes # (issue)
 <!-- Remove bullet points below that don't apply to you -->
 
 - I haven't read the [contributing guide](https://github.com/langfuse/langfuse/blob/main/CONTRIBUTING.md)
-- My code doesn't follow the style guidelines of this project (`npm run prettier`)
+- My code doesn't follow the style guidelines of this project (`pnpm run format`)
 - I haven't commented my code, particularly in hard-to-understand areas
 - I haven't checked if my PR needs changes to the documentation
 - I haven't checked if my changes generate no new warnings (`npm run lint`)

.github/dependabot.yml

@@ -36,6 +36,7 @@ updates:
         patterns:
           - "express"
           - "@types/express"
+          - "@types/express-serve-static-core"
       observability:
         patterns:
           - "dd-trace"

.github/workflows/_deploy_ecs_service.yml

@@ -52,10 +52,11 @@ jobs:
             --build-arg NEXT_PUBLIC_BUILD_ID=${{ github.sha }} \
             --build-arg NEXT_PUBLIC_POSTHOG_KEY=${{ vars.NEXT_PUBLIC_POSTHOG_KEY }} \
             --build-arg NEXT_PUBLIC_POSTHOG_HOST=${{ vars.NEXT_PUBLIC_POSTHOG_HOST }} \
-            --build-arg NEXT_PUBLIC_CRISP_WEBSITE_ID=${{ vars.NEXT_PUBLIC_CRISP_WEBSITE_ID }} \
+            --build-arg NEXT_PUBLIC_PLAIN_APP_ID=${{ vars.NEXT_PUBLIC_PLAIN_APP_ID }} \
             --build-arg SENTRY_AUTH_TOKEN=${{ secrets.SENTRY_AUTH_TOKEN }} \
             --build-arg SENTRY_ORG=${{ vars.SENTRY_ORG }} \
             --build-arg SENTRY_PROJECT=${{ vars.SENTRY_PROJECT }} \
+            --build-arg NEXT_PUBLIC_LANGFUSE_TRACING_SAMPLE_RATE=${{ vars.NEXT_PUBLIC_LANGFUSE_TRACING_SAMPLE_RATE }} \
             .
           docker push $REGISTRY/$REPOSITORY:$IMAGE_TAG
       - name: Render AWS ECS Task Definition

.github/workflows/codespell.yml

@@ -3,9 +3,13 @@ name: Codespell
 
 on:
   push:
-    branches: [main]
+    branches:
+      - "main"
+    tags:
+      - "v*"
   pull_request:
-    branches: [main]
+    branches:
+      - "**"
   merge_group:
 
 permissions:

.github/workflows/deploy.yml

@@ -21,6 +21,7 @@ on:
           - staging
           - prod-eu
           - prod-us
+          - prod-hipaa
         required: true
 
 concurrency:
@@ -78,7 +79,7 @@ jobs:
                 return `["staging"]`
               }
               if (context.ref === "refs/heads/production") {
-                return `["prod-eu", "prod-us"]`
+                return `["prod-eu", "prod-us", "prod-hipaa"]`
               }
             }
             return "[]"

.github/workflows/pipeline.yml

@@ -17,8 +17,22 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
+  pre-job:
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    timeout-minutes: 15
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v5
+        with:
+          do_not_skip: '["workflow_dispatch"]'
+
   lint:
     runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
@@ -38,9 +52,55 @@ jobs:
       - name: lint web
         run: pnpm run lint
 
+  prettier-check:
+    runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v3
+        with:
+          version: 9.5.0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "pnpm"
+          cache-dependency-path: "pnpm-lock.yaml"
+      - name: install dependencies
+        run: |
+          pnpm i
+      - name: Load default env
+        run: |
+          cp .env.dev.example .env
+      - name: Check formatting on changed files
+        run: |
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            BASE_SHA=${{ github.event.pull_request.base.sha }}
+          else
+            BASE_SHA=$(git merge-base origin/main HEAD)
+          fi
+          
+          echo "Checking files changed from $BASE_SHA to HEAD"
+          
+          # Get changed files
+          CHANGED_FILES=$(git diff --name-only $BASE_SHA HEAD -- '*.js' '*.jsx' '*.ts' '*.tsx' '*.css' | tr '\n' ' ')
+          
+          if [ -n "$CHANGED_FILES" ] && [ "$CHANGED_FILES" != " " ]; then
+            echo "Files to check: $CHANGED_FILES"
+            pnpm prettier --check --experimental-cli $CHANGED_FILES
+          else
+            echo "No JS/TS/CSS files changed - skipping prettier check"
+          fi
+
   test-docker-build:
     timeout-minutes: 20
     runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -54,7 +114,9 @@ jobs:
         run: echo "NEXT_PUBLIC_BUILD_ID=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
       - name: Build and run both images from compose
         run: |
-          docker compose -f docker-compose.build.yml up -d
+          docker compose --progress plain --verbose -f docker-compose.build.yml build --print > /tmp/bake.json
+          docker buildx bake -f /tmp/bake.json
+          docker compose --progress plain -f docker-compose.build.yml up -d
           sleep 5 # Wait for PostgreSQL to accept connections
       - name: Ensure no unhealthy status
         run: |
@@ -72,22 +134,21 @@ jobs:
           timeout 10 bash -c 'until curl -f http://localhost:3000/api/public/health; do sleep 2; done'
 
   tests-web-sync:
-    timeout-minutes: 20
+    timeout-minutes: 30
     runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
     name: tests-web-sync (node${{ matrix.node-version }}, pg${{ matrix.postgres-version }})
     strategy:
       matrix:
         node-version: [20]
         postgres-version: [12, 15]
     steps:
-      - name: Set Swap Space
-        uses: pierotofy/set-swap-space@master
-        with:
-          swap-size-gb: 10
       - uses: actions/checkout@v4
       - name: Install golang-migrate for Clickhouse migrations
         run: |
-          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.16.2/migrate.linux-amd64.tar.gz | tar xvz
+          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz
           sudo mv migrate /usr/bin/migrate
           which migrate
       - uses: pnpm/action-setup@v3
@@ -111,16 +172,18 @@ jobs:
       - name: Load default env
         run: |
           cp .env.dev.example .env
-          grep -v -e '^LANGFUSE_S3_BATCH_EXPORT_ENABLED=' -e '^REDIS_HOST=' -e '^NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT=' .env.dev.legacy.example > .env
-          echo "LANGFUSE_POSTGRES_INGESTION_ENABLED=true" >> .env
-      - name: Run + migrate
+          grep -v -e '^LANGFUSE_S3_BATCH_EXPORT_ENABLED=' -e '^NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT=' .env.dev.example > .env
+          echo "LANGFUSE_INGESTION_QUEUE_DELAY_MS=1" >> .env
+          echo "LANGFUSE_CACHE_PROMPT_ENABLED=false" >> .env
+          echo "LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS=1" >> .env
+      - name: Run dev containers
         run: |
           docker compose -f docker-compose.dev.yml up -d
           sleep 5 # Wait for PostgreSQL to accept connections
           docker compose ps
         env:
           POSTGRES_VERSION: ${{ matrix.postgres-version }}
-      - name: Seed DB
+      - name: Migrate DB
         run: |
           pnpm run db:migrate
           pnpm --filter=shared ch:up
@@ -131,6 +194,7 @@ jobs:
         env:
           LANGFUSE_INIT_ORG_ID: "seed-org-id"
           LANGFUSE_INIT_ORG_NAME: "Seed Org"
+          LANGFUSE_INIT_ORG_CLOUD_PLAN: "Team"
           LANGFUSE_INIT_PROJECT_ID: "7a88fb47-b4e2-43b8-a06c-a5ce950dc53a"
           LANGFUSE_INIT_PROJECT_NAME: "Seed Project"
           LANGFUSE_INIT_PROJECT_PUBLIC_KEY: "pk-lf-1234567890"
@@ -144,23 +208,22 @@ jobs:
         run: pnpm --filter=web run test-client
 
   tests-web-async:
-    timeout-minutes: 20
+    timeout-minutes: 30
     runs-on: ubuntu-latest
-    name: tests-web-async (node${{ matrix.node-version }}, pg${{ matrix.postgres-version }}, mode${{ matrix.blob-provider }})
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
+    name: tests-web-async (node${{ matrix.node-version }}, pg${{ matrix.postgres-version }}, mode${{ matrix.deploy-mode }})
     strategy:
       matrix:
         node-version: [20]
         postgres-version: [12, 15]
-        blob-provider: ["", "-azure"]
+        deploy-mode: ["", "-azure", "-redis-cluster"]
     steps:
-      - name: Set Swap Space
-        uses: pierotofy/set-swap-space@master
-        with:
-          swap-size-gb: 10
       - uses: actions/checkout@v4
       - name: Install golang-migrate for Clickhouse migrations
         run: |
-          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.16.2/migrate.linux-amd64.tar.gz | tar xvz
+          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz
           sudo mv migrate /usr/bin/migrate
           which migrate
       - uses: pnpm/action-setup@v3
@@ -183,16 +246,21 @@ jobs:
           pnpm install
       - name: Load default env
         run: |
-          cp .env.dev${{ matrix.blob-provider }}.example .env
-          grep -v -e '^LANGFUSE_S3_BATCH_EXPORT_ENABLED=' -e '^REDIS_HOST=' -e '^NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT=' .env.dev${{ matrix.blob-provider }}.example > .env
-      - name: Run + migrate
+          cp .env.dev${{ matrix.deploy-mode }}.example .env
+          grep -v -e '^LANGFUSE_S3_BATCH_EXPORT_ENABLED=' -e '^NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT=' .env.dev${{ matrix.deploy-mode }}.example > .env
+          echo "LANGFUSE_INGESTION_QUEUE_DELAY_MS=1" >> .env
+          echo "LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS=1" >> .env
+          echo "LANGFUSE_TRACE_DELETE_CONCURRENCY=100" >> .env
+          echo "ADMIN_API_KEY=admin-api-key" >> .env
+          echo "LANGFUSE_EE_LICENSE_KEY=langfuse_ee_test" >> .env
+      - name: Run dev containers
         run: |
-          docker compose -f docker-compose.dev${{ matrix.blob-provider }}.yml up -d
+          docker compose -f docker-compose.dev${{ matrix.deploy-mode }}.yml up -d
           sleep 5 # Wait for PostgreSQL to accept connections
           docker compose ps
         env:
           POSTGRES_VERSION: ${{ matrix.postgres-version }}
-      - name: Seed DB
+      - name: Migrate DB
         run: |
           pnpm run db:migrate
           pnpm --filter=shared ch:up
@@ -203,6 +271,7 @@ jobs:
         env:
           LANGFUSE_INIT_ORG_ID: "seed-org-id"
           LANGFUSE_INIT_ORG_NAME: "Seed Org"
+          LANGFUSE_INIT_ORG_CLOUD_PLAN: "Team"
           LANGFUSE_INIT_PROJECT_ID: "7a88fb47-b4e2-43b8-a06c-a5ce950dc53a"
           LANGFUSE_INIT_PROJECT_NAME: "Seed Project"
           LANGFUSE_INIT_PROJECT_PUBLIC_KEY: "pk-lf-1234567890"
@@ -216,17 +285,16 @@ jobs:
   tests-worker:
     timeout-minutes: 20
     runs-on: ubuntu-latest
-    name: tests-worker (node${{ matrix.node-version }}, pg${{ matrix.postgres-version }}, mode${{ matrix.blob-provider }})
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
+    name: tests-worker (node${{ matrix.node-version }}, pg${{ matrix.postgres-version }}, mode${{ matrix.deploy-mode }})
     strategy:
       matrix:
         node-version: [20]
         postgres-version: [12, 15]
-        blob-provider: ["", "-azure"]
+        deploy-mode: ["", "-azure", "-redis-cluster"]
     steps:
-      - name: Set Swap Space
-        uses: pierotofy/set-swap-space@master
-        with:
-          swap-size-gb: 10
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
         with:
@@ -248,17 +316,17 @@ jobs:
           pnpm install
       - name: Install golang-migrate for Clickhouse migrations
         run: |
-          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.16.2/migrate.linux-amd64.tar.gz | tar xvz
+          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz
           sudo mv migrate /usr/bin/migrate
           which migrate
       - name: Load default env
         run: |
-          cp .env.dev${{ matrix.blob-provider }}.example .env
-          cp .env.dev${{ matrix.blob-provider }}.example web/.env
-          cp .env.dev${{ matrix.blob-provider }}.example worker/.env
+          cp .env.dev${{ matrix.deploy-mode }}.example .env
+          cp .env.dev${{ matrix.deploy-mode }}.example web/.env
+          cp .env.dev${{ matrix.deploy-mode }}.example worker/.env
       - name: Run + migrate
         run: |
-          docker compose -f docker-compose.dev${{ matrix.blob-provider }}.yml up -d
+          docker compose -f docker-compose.dev${{ matrix.deploy-mode }}.yml up -d
           sleep 5 # Wait for PostgreSQL to accept connections
           docker compose ps
       - name: Ensure no unhealthy status
@@ -281,6 +349,9 @@ jobs:
 
   e2e-tests:
     runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
@@ -304,14 +375,28 @@ jobs:
         run: |
           cp .env.dev.example .env
           cp .env.dev.example web/.env
+      - name: Install golang-migrate for Clickhouse migrations
+        run: |
+          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz
+          sudo mv migrate /usr/bin/migrate
+          which migrate
       - name: Run + migrate
         run: |
           docker compose -f docker-compose.dev.yml up -d
           docker compose ps
           sleep 5 # Wait for PostgreSQL to accept connections
+      - name: Ensure Docker dependencies are healthy
+        run: |
+          if docker-compose ps | grep "(unhealthy)"; then
+            echo "One or more services are unhealthy"
+            exit 1
+          else
+            echo "All services are healthy"
+          fi
       - name: Seed DB
         run: |
           pnpm run db:migrate
+          pnpm --filter=shared run ch:up
           pnpm run db:seed
       - name: Build
         run: pnpm run build
@@ -322,6 +407,9 @@ jobs:
 
   e2e-server-tests:
     runs-on: ubuntu-latest
+    needs:
+      - pre-job
+    if: needs.pre-job.outputs.should_skip != 'true'
     steps:
       - uses: actions/checkout@v4
       - name: Login to Docker Hub
@@ -343,14 +431,12 @@ jobs:
           pnpm install
       - name: Install golang-migrate for Clickhouse migrations
         run: |
-          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.16.2/migrate.linux-amd64.tar.gz | tar xvz
+          curl -L https://github.com/golang-migrate/migrate/releases/download/v4.18.3/migrate.linux-amd64.tar.gz | tar xvz
           sudo mv migrate /usr/bin/migrate
           which migrate
       - name: Load default env
         run: |
           cp .env.dev.example .env
-          echo "LANGFUSE_CACHE_API_KEY_ENABLED=true" >> .env
-          echo "LANGFUSE_CACHE_PROMPT_ENABLED=true" >> .env
       - name: Run + migrate
         run: |
           docker compose -f docker-compose.dev.yml up -d
@@ -388,6 +474,7 @@ jobs:
     needs:
       [
         lint,
+        prettier-check,
         tests-web-sync,
         tests-worker,
         e2e-tests,
@@ -398,13 +485,21 @@ jobs:
     if: always()
     steps:
       - name: Successful deploy
-        if: ${{ !(contains(needs.*.result, 'failure')) }}
+        if: ${{ !(contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')) }}
         run: exit 0
         working-directory: .
       - name: Failing deploy
-        if: ${{ contains(needs.*.result, 'failure') }}
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
         run: exit 1
         working-directory: .
+      - name: Notify Slack
+        uses: ravsamhq/notify-slack-action@v2
+        if: always() && github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))
+        with:
+          status: ${{ job.status }}
+          notify_when: "failure"
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
 
   push-docker-image:
     needs: all-ci-passed
@@ -501,3 +596,11 @@ jobs:
           platforms: |
             linux/amd64
             ${{ startsWith(github.ref, 'refs/tags/') && 'linux/arm64' || '' }}
+      - name: Notify Slack
+        uses: ravsamhq/notify-slack-action@v2
+        if: always()
+        with:
+          status: ${{ job.status }}
+          notify_when: "failure"
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

.github/workflows/snyk.yml

@@ -1,51 +1,28 @@
 name: Snyk Container
 on:
-  pull_request:
-    branches:
-      - "**"
   push:
-    branches:
-      - main
-  merge_group:
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+    branches: ["main"]
 
 jobs:
   snyk:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - name: Build a Docker image
-        run: docker compose -f docker-compose.build.yml up -d
+      - uses: actions/checkout@v3
 
-      - name: Run Snyk to check Docker image for vulnerabilities (langfuse-web)
-        continue-on-error: true
+      - name: Scan web image with Snyk
         uses: snyk/actions/docker@master
+        continue-on-error: true # let upload step always run
         env:
           SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
         with:
-          image: langfuse-langfuse-web
-          args: --file=web/Dockerfile
+          image: langfuse/langfuse # pulled from Docker Hub
+          args: --severity-threshold=high # (any extra CLI flags, but NO --file)
 
-      - name: Upload result to GitHub Code Scanning
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: snyk.sarif
-          category: web
-
-      - name: Run Snyk to check Docker image for vulnerabilities (langfuse-worker)
-        continue-on-error: true
+      - name: Scan worker image with Snyk
         uses: snyk/actions/docker@master
+        continue-on-error: true # let upload step always run
         env:
           SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
         with:
-          image: langfuse-langfuse-worker
-          args: --file=worker/Dockerfile
-
-      - name: Upload result to GitHub Code Scanning
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: snyk.sarif
-          category: worker
+          image: langfuse/langfuse-worker # pulled from Docker Hub
+          args: --severity-threshold=high # (any extra CLI flags, but NO --file)

.github/workflows/stale_issues.yml

@@ -0,0 +1,22 @@
+name: Close inactive issues
+on:
+  schedule:
+    - cron: "30 1 * * *"
+
+jobs:
+  close-issues:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/stale@v9
+        with:
+          days-before-issue-stale: 30
+          days-before-issue-close: 14
+          stale-issue-label: "stale"
+          stale-issue-message: "This issue is stale because it has been open for 30 days with no activity."
+          close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale. Please reopen if the issue persists."
+          days-before-pr-stale: -1
+          days-before-pr-close: -1
+          repo-token: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -4,9 +4,11 @@
 /node_modules
 /.pnp
 .pnp.js
+migrate
 
 # testing
 /coverage
+/certs/
 
 # database
 /prisma/db.sqlite
@@ -38,8 +40,9 @@ yarn-error.log*
 .env*
 !.env.dev.example
 !.env.dev-azure.example
+!.env.dev-redis-cluster.example
 !.env.prod.example
-!.env.dev.legacy.example
+!.env.test.example
 
 # vercel
 .vercel
@@ -47,19 +50,22 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 
-/generated/typescript-server
+/generated
 
 # openapi spec that is copied during build
 /public/openapi*.yml
 
 
 # vscode
-.devcontainer
-
 node_modules
 **/node_modules
 **/dist
 **/.next/*
 **/.turbo/*
 .yarn
-.turbo
+.turbo
+
+web/test-results/*
+
+# local config files
+*.local.*

.husky/pre-commit

@@ -11,12 +11,13 @@ if [ "$current_branch" = "$protected_branch" ]; then
     echo "🚨 You are about to commit to the $protected_branch branch. Are you sure? (y/n)"
     read -r answer < /dev/tty
     if [ "$answer" != "${answer#[Yy]}" ]; then
-        exit 0 # Commit will proceed
+        # Commit approved, check formatting. On files changed, block commit
+        pnpm run format:check
     else
         echo "Commit to $protected_branch branch has been canceled."
         exit 1 # Commit will be blocked
     fi
 fi
 
-# If not the protected branch, proceed with the commit
-exit 0
+# If not the protected branch, check formatting (on changed files, block)
+pnpm run format:check

.prettierignore

@@ -0,0 +1,2 @@
+# Generated code
+packages/shared/prisma/generated

AGENTS.md

@@ -0,0 +1,18 @@
+# Codex Guidelines for Langfuse
+
+Langfuse is an **open source LLM engineering** platform for developing, monitoring, evaluating and debugging AI applications. See the README for more details.
+
+## Linting
+- Run `pnpm run lint` to lint all packages.
+- Fix issues automatically with `pnpm run lint:fix`.
+
+## Tests
+- Codex cannot run the test suite because it depends on Docker-based infrastructure that is unavailable in this environment.
+- When writing tests, focus on decoupling each `it` or `test` block to ensure that they can run independently and concurrently. Tests must never depend on the action or outcome of previous or subsequent tests.
+- When writing tests, especially in the __tests__/async directory, ensure that you avoid `pruneDatabase` calls.
+
+## Cursor Rules
+- Additional folder-specific rules live in `.cursor/rules/`.
+
+## Commits
+- Follow [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) when crafting commit messages.

CLAUDE.md

@@ -0,0 +1,197 @@
+# CLAUDE.md
+
+## Project Overview
+
+Langfuse is an open-source LLM engineering platform that helps teams collaboratively develop, monitor, evaluate, and debug AI applications.
+The main feature areas are tracing, evals and prompt management. Langfuse consists of the web application (this repo), documentation, python SDK and javascript/typescript SDK.
+This repo contains the web application, worker, and supporting packages but notably not the JS nor Python client SDKs.
+
+## Repository Structure
+High level structure. There are more folders (eg for hooks etc).
+```
+langfuse/
+├── web/                     # Next.js 14 frontend/backend application
+│   ├── src/
+│   │   ├── components/     # Reusable UI components (shadcn/ui)
+│   │   ├── features/       # Feature-specific code organized by domain
+│   │   ├── pages/          # Next.js pages (Pages Router)
+│   │   └── server/         # tRPC API routes and server logic
+│   └── public/             # Static assets
+├── worker/                  # Express.js background job processor
+│   └── src/
+│       ├── queues/         # BullMQ job queues
+│       └── services/       # Background processing services
+├── packages/
+│   ├── shared/             # Shared types, schemas, and utilities
+│   │   ├── prisma/         # Database schema and migrations
+│   │   └── src/            # Shared TypeScript code
+│   ├── config-eslint/      # ESLint configuration
+│   └── config-typescript/  # TypeScript configuration
+├── ee/                     # Enterprise Edition features
+├── fern/                   # API documentation and OpenAPI specs
+├── generated/              # Auto-generated client code
+└── scripts/                # Development and deployment scripts
+```
+
+## Repository Architecture
+This is a **pnpm + Turbo monorepo** with the following key packages:
+
+### Core Applications
+- **`/web/`** - Next.js 14 application (Pages Router) providing both frontend UI and backend APIs
+- **`/worker/`** - Express.js background job processing server
+- **`/packages/shared/`** - Shared database schema, types, and utilities
+
+### Supporting Packages
+- **`/ee/`** - Enterprise Edition features (separate licensing)
+- **`/packages/config-eslint/`** - Shared ESLint configuration
+- **`/packages/config-typescript/`** - Shared TypeScript configuration
+
+## Development Commands
+
+### Development
+```sh
+pnpm i               # Install dependencies
+pnpm run dev         # Start all services (web + worker)
+pnpm run dev:web     # Web app only (localhost:3000) - **used in most cases!**
+pnpm run dev:worker  # Worker only
+pnpm run dx          # Full initial setup: install deps, reset DBs, resets node modules, seed data, start dev. USE SPARINGLY AS IT WIPES THE DATABASE & node_modules
+```
+
+### Database Management
+database commands are to be run in the `packages/shared/` folder.
+```sh
+pnpm run db:generate       # Build prisma models
+pnpm run db:migrate        # Run Prisma migrations
+pnpm run db:reset          # Reset and reseed databases
+pnpm run db:seed           # Seed with example data
+```
+
+### Infrastructure
+```sh
+pnpm run infra:dev:up      # Start Docker services (PostgreSQL, ClickHouse, Redis, MinIO)
+pnpm run infra:dev:down    # Stop Docker services
+```
+
+### Building
+```sh
+pnpm --filter=PACKAGE_NAME run build  # Runs the build command, will show real typescript errors etc.
+```
+
+### Testing in Web Package
+The web package uses JEST for unit tests.
+Depending on the file location (sync, async)
+`web` related tests must go into the `web/src/__tests__/` folder.
+```sh
+pnpm test-sync --testPathPattern="$FILE_LOCATION_PATTERN" --testNamePattern="$TEST_NAME_PATTERN"
+pnpm test-async --testPathPattern="$FILE_LOCATION_PATTERN" --testNamePattern="$TEST_NAME_PATTERN"
+```
+
+### Testing in the Worker Package
+The worker uses `vitest` for unit tests.
+```sh
+pnpm run test --filter=worker -- $TEST_FILE_NAME -t "$TEST_NAME"
+```
+
+### Utilities
+```bash
+pnpm run format            # Format code across entire project
+pnpm run nuke              # Remove all node_modules, build files, wipe database, docker containers. **USE WITH CAUTION**
+```
+
+## Technology Stack
+
+### Web Application (`/web/`)
+- **Framework**: Next.js 14 (Pages Router)
+- **APIs**: tRPC (type-safe client-server communication) + REST APIs for public access
+- **Authentication**: NextAuth.js/Auth.js
+- **Database**: Prisma ORM with PostgreSQL
+- **Analytics Database**: ClickHouse (high-volume trace data)
+- **Validation**: Zod schemas, we use zodv4 (always import from `zod/v4`)
+- **Styling**: Tailwind CSS with CSS variables for theming
+- **Components**: shadcn/ui (Radix UI primitives)
+- **State Management**: TanStack Query (React Query) + tRPC
+- **Charts**: Tremor, Recharts
+
+### Worker Application (`/worker/`)
+- **Framework**: Express.js
+- **Queue System**: BullMQ with Redis
+- **Purpose**: Async processing (data ingestion, evaluations, exports, integrations)
+
+### Infrastructure
+- **Primary Database**: PostgreSQL (via Prisma ORM)
+- **Analytics Database**: ClickHouse
+- **Cache/Queues**: Redis
+- **Blob Storage**: MinIO/S3
+
+## Development Guidelines
+
+### Frontend Features
+- All new features go in `/web/src/features/[feature-name]/`
+- Use tRPC for full-stack features (entry point: `web/src/server/api/root.ts`)
+- Follow existing feature structure for consistency
+- Use shadcn/ui components from `@/src/components/ui`
+- Custom reusable components go in `@/src/components`
+
+### Public API Development
+- All public API routes in `/web/src/pages/api/public`
+- Use `withMiddlewares.ts` wrapper
+- Define types in `/web/src/features/public-api/types` with strict Zod v4 objects
+- Add end-to-end tests (see `datasets-api.servertest.ts`)
+- Manually update Fern API specs in `/fern/`, then regenerate OpenAPI spec via Fern CLI
+
+### Authorization & RBAC
+- Check `/web/src/features/rbac/README.md` for authorization patterns
+- Implement proper entitlements checking (see `/web/src/features/entitlements/README.md`)
+
+### Database
+- **Dual database system**: PostgreSQL (primary) + ClickHouse (analytics)
+- Use `golang-migrate` CLI for database migrations
+- All database operations go through Prisma ORM for PostgreSQL
+- Foreign key relationships may not be enforced in schema to allow unordered ingestion
+
+### Testing
+- Jest for API tests, Playwright for E2E tests
+- For backend/API changes, tests must pass before pushes
+- Add tests for new API endpoints and features
+- When writing tests, focus on decoupling each `it` or `test` block to ensure that they can run independently and concurrently. Tests must never depend on the action or outcome of previous or subsequent tests.
+- When writing tests, especially in the __tests__/async directory, ensure that you avoid `pruneDatabase` calls.
+
+### Code Conventions
+- **Pages Router** (not App Router)
+- Follow conventional commits on main branch
+- Use CSS variables for theming (supports auto dark/light mode)
+- TypeScript throughout
+- Zod v4 for all input validation
+
+## Environment Setup
+
+- **Node.js**: Version 20 (specified in `.nvmrc`)
+- **Package Manager**: pnpm v9.5.0
+- **Database Dependencies**: Docker for local PostgreSQL, ClickHouse, Redis, MinIO
+- **Environment**: Copy `.env.dev.example` to `.env`
+
+## Login for Development
+
+When running locally with seed data:
+- Username: `demo@langfuse.com`
+- Password: `password`
+- Demo project URL: `http://localhost:3000/project/7a88fb47-b4e2-43b8-a06c-a5ce950dc53a`
+
+## Linear MCP
+To get a project, use the `get_project` capability with the full project name as it is in the title.
+- bad: message-placeholder-in-chat-messages-2beb6f02ec48
+- good: Message placeholder in chat messages
+
+## Front-end Tips
+
+### Window Location Handling
+- Whenever you want to use or do use window.location..., ensure that you also add proper handling for a custom basePath
+
+## TypeScript Best Practices
+- In TypeScript, if possible, don't use the `any` type
+
+## General Coding Guidelines
+- For easier code reviews, prefer not to move functions etc around within a file unless necessary or instructed to do so
+
+## Development Tips
+- Before trying to build the package, try running the linter once first

CONTRIBUTING.md

@@ -27,7 +27,7 @@ The maintainers are available on [Discord](https://langfuse.com/discord) in case
 
 ## Making a change
 
-_Before making any significant changes, please [open an issue](https://github.com/langfuse/langfuse/issues)._ Discussing your proposed changes ahead of time will make the contribution process smooth for everyone. Large changes that were not discussed in an issue may be rejected.
+_Before making any significant changes, please [open an issue](https://github.com/langfuse/langfuse/issues)._ Discussing your proposed changes ahead of time will make the contribution process smooth for everyone. Changes that were not discussed in an issue may be rejected.
 
 Once we've discussed your changes and you've got your code ready, make sure that tests are passing and open your pull request.
 
@@ -42,7 +42,7 @@ A good first step is to search for open [issues](https://github.com/langfuse/lan
   - NextAuth.js / Auth.js
   - tRPC: Frontend APIs
   - Prisma ORM
-  - Zod
+  - Zod v4
   - Tailwind CSS
   - shadcn/ui tailwind components (using Radix and tanstack)
   - Fern: generate OpenAPI spec and Pydantic models
@@ -53,124 +53,35 @@ A good first step is to search for open [issues](https://github.com/langfuse/lan
 
 ### Architecture Overview
 
-**Langfuse v2**
-
-```mermaid
-flowchart TB
-    subgraph s4["Clients"]
-        subgraph s2["langfuse/langfuse-python"]
-            Python["Python low-level SDK"]
-            Decorator["observe() decorator"] -->|extends| Python
-            OAI["OpenAI drop-in replacement"] -->|extends| Python
-            Llamaindex["LlamaIndex Integration"] -->|extends| Python
-            LCPYTHON["Langchain Python Integration"] -->|extends| Python
-            Langflow -->|uses| LCPYTHON
-            LiteLLM -->|uses| Python
-        end
-        subgraph s3["langfuse/langfuse-js"]
-            JS["JS SDK"]
-            LCJS["Langchain JS Integration"]  -->|extends| JS
-            Flowise -->|uses| LCJS
-        end
-    end
-
-    DB[Postgres Database]
-    Redis[Redis]
-
-    subgraph s1["Application (langfuse/langfuse/web)"]
-        API[Public HTTP API]
-        G[TRPC API]
-        I[NextAuth]
-        H[React Frontend]
-        Prisma[Prisma ORM]
-        H --> G
-        H --> I
-        G --> I
-        G --- Prisma
-        API --- Prisma
-        I --- Prisma
-    end
-
-    Prisma --- DB
-    JS --- API
-    Python --- API
-```
-
-**Langfuse v3 (work in progress, not released yet)**
-
-> [!NOTE]
-> Infrastructure will change in Langfuse version 3.0. More in the [GitHub Discussions](https://github.com/orgs/langfuse/discussions/1902).
-> `langfuse/langfuse/worker` is under active development and not recommended for production use in Langfuse 2.x.
-
-```mermaid
-flowchart TB
-    subgraph s4["Clients"]
-        subgraph s2["langfuse/langfuse-python"]
-            Python["Python low-level SDK"]
-            Decorator["observe() decorator"] -->|extends| Python
-            OAI["OpenAI drop-in replacement"] -->|extends| Python
-            Llamaindex["LlamaIndex Integration"] -->|extends| Python
-            LCPYTHON["Langchain Python Integration"] -->|extends| Python
-            Langflow -->|uses| LCPYTHON
-            LiteLLM -->|uses| Python
-        end
-        subgraph s3["langfuse/langfuse-js"]
-            JS["JS SDK"]
-            LCJS["Langchain JS Integration"]  -->|extends| JS
-            Flowise -->|uses| LCJS
-        end
-    end
-
-    DB[Postgres Database]
-    Redis[Redis Cache/Queue]
-    Clickhouse[Clickhouse Database]
-
-    subgraph s1["Application (langfuse/langfuse/web)"]
-        API[Public HTTP API]
-        G[TRPC API]
-        I[NextAuth]
-        H[React Frontend]
-        ORM
-        H --> G
-        H --> I
-        G --> I
-        G --- ORM
-        API --- ORM
-        I --- ORM
-    end
-
-    subgraph s5["Application (langfuse/langfuse/worker)"]
-        Worker
-    end
-
-    Worker --- DB
-    Worker --- Redis
-    Worker --- Clickhouse
-
-    ORM --- DB
-    ORM --- Redis
-    ORM --- Clickhouse
-
-    JS --- API
-    Python --- API
-```
+See this [diagram](https://langfuse.com/self-hosting#architecture) for an overview of the architecture.
 
 ### Network Overview
 
-> [!NOTE]
-> This will change in Langfuse version 3.0. More in the [GitHub Discussions](https://github.com/orgs/langfuse/discussions/1902).
-
 ```mermaid
-flowchart LR
-   Browser ---|Web UI & TRPC API| App
-   Integrations/SDKs ---|Public HTTP API| App
-   subgraph i1["Application Network"]
-      App["Langfuse Application"]
-   end
-   subgraph i2["Database Network"]
-      DB["Postgres Database"]
-   end
-   App --- DB
+flowchart TB
+    User["UI, API, SDKs"]
+    subgraph vpc["VPC"]
+        Web["Web Server<br/>(langfuse/langfuse)"]
+        Worker["Async Worker<br/>(langfuse/worker)"]
+        Postgres["Postgres - OLTP<br/>(Transactional Data)"]
+        Cache["Redis/Valkey<br/>(Cache, Queue)"]
+        Clickhouse["Clickhouse - OLAP<br/>(Observability Data)"]
+        S3["S3 / Blob Storage<br/>(Raw events, multi-modal attachments)"]
+    end
+    LLM["LLM API/Gateway<br/>(optional)"]
+
+    User --> Web
+    Web --> S3
+    Web --> Postgres
+    Web --> Cache
+    Web --> Clickhouse
+    Web -.->|"optional for playground"| LLM
+
+    Cache --> Worker
+    Worker --> Clickhouse
+    Worker --> Postgres
+    Worker --> S3
+    Worker -.->|"optional for evals"| LLM
 ```
 
 ### Database Overview
@@ -186,7 +97,7 @@ Full database schema: [packages/shared/prisma/schema.prisma](packages/shared/pri
 We built a monorepo using [pnpm](https://pnpm.io/motivation) and [turbo](https://turbo.build/repo/docs) to manage the dependencies and build process. The monorepo contains the following packages:
 
 - `web`: is the main application package providing Frontend and Backend APIs for Langfuse.
-- `worker` (no production yet): contains an application for asynchronous processing of tasks. This package is not yet used in production.
+- `worker`: contains an application for asynchronous processing of tasks.
 - `packages`:
   - `shared`: contains shared code between the above packages.
   - `config-eslint`: contains eslint configurations which are shared between the above packages.
@@ -205,53 +116,51 @@ Requirements
 
 **Steps**
 
-1. Fork the repository and clone it locally
-2. Run the development database
+1. Install [golang-migrate](https://github.com/golang-migrate/migrate/tree/master/cmd/migrate#migrate-cli) as CLI
+2. Fork the repository and clone it locally
 
    ```bash
-   pnpm run infra:dev:up
+   git clone https://github.com/langfuse/langfuse.git
+   cd langfuse
    ```
 
-3. Create an env file
+3. Install dependencies and set up pre-commit hooks
+
+   ```bash
+   pnpm install
+   pnpm run prepare  # Sets up Husky pre-commit hooks for code formatting
+   ```
+
+4. Create an env file
 
    ```bash
     cp .env.dev.example .env
    ```
 
-4. Install dependencies
+4. Run the entire infrastructure in dev mode. **Note**: if you have an existing database, this command wipes it. Also, this will fail on the very first run. Please run it again.
 
    ```bash
-   pnpm install
+   pnpm run dx # first run only (resets db, docker containers, etc...)
+   pnpm run dev # any subsequent runs
    ```
 
-5. Run the migrations
+   You will be asked whether you want to reset Postgres and ClickHouse. Confirm both with 'Y' and press enter.
 
-   All database migrations and configs are in the `shared` package.
+5. Open the web app in your browser to start using Langfuse:
 
-   ```bash
-   pnpm --filter=shared run db:migrate
+   - [Sign up page, http://localhost:3000](http://localhost:3000)
+   - [Demo project, http://localhost:3000/project/7a88fb47-b4e2-43b8-a06c-a5ce950dc53a](http://localhost:3000/project/7a88fb47-b4e2-43b8-a06c-a5ce950dc53a)
 
-   # Optional: seed the database
-   # pnpm run db:seed
-   # pnpm run db:seed:examples
-   # pnpm --filter=shared run db:seed:load
-   ```
+6. Log in as a test user:
 
-6. Start the development server
+   - Username: `demo@langfuse.com`
+   - Password: `password`
 
-   ```bash
-    pnpm run dev
-   ```
+To get comprehensive example data, you can use the `seed` command:
 
-7. Open the web app in the browser:
-
-   http://localhost:3000
-
-8. Log in as a test user (after you ran `db:seed` command):
-
-   Username: demo@langfuse.com
-
-   Password: password
+```sh
+pnpm run db:seed:examples
+```
 
 ## Monorepo quickstart
 
@@ -302,23 +211,65 @@ Requirements
 
 On the main branch, we adhere to the best practices of [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/). All pull requests and branches are squash-merged to maintain a clean and readable history. This approach ensures the addition of a conventional commit message when merging contributions.
 
-## Test the public API
+## Running Unit Tests
 
-The API is tested using Jest. With the development server running, you can run the tests with:
+All tests run in the CI and must pass before merging.
+All tests run against a running langfuse instance and **write/delete real data from the database**.
 
-Run all
+### Test Database Setup
+
+Per default, the tests use the local development database. Therefore, wiping your data in the process.
+For proper test isolation, create a `.env.test` file in the root directory:
 
 ```bash
-npm run test
+cp .env.test.example .env.test
 ```
 
-Run interactively in watch mode
+Then, a different PostgreSQL and Redis are used for the tests.
+The `.env.test` file only overrides the set values and falls back on `.env` for all undefined values.
 
-```bash
-npm run test:watch
+- **PostgreSQL**: Uses separate `langfuse_test` database for isolation
+- **ClickHouse**: Uses shared `default` database for now
+- **Redis**: Uses database 1 instead of 0 for isolation (Redis data is not cleaned between tests)
+
+Tests automatically create the PostgreSQL test database if it doesn't exist and clean up data between runs.
+
+### Tests in the `web` package (public API)
+
+We're using Jest with in the `web` package. Therefore, if you want to provide an argument to the test runner, do it directly without an intermittent `--`.
+
+There are three types of unit tests:
+
+- `test-sync`
+- `test-async`
+- `test-client`
+
+To run a specific test, for example the test: `"should handle special characters in prompt names"` in `prompts.v2.servertest.ts`, run:
+
+```sh
+cd web  # or with --filter=web
+pnpm test-sync --testPathPattern="prompts\.v2\.servertest" --testNamePattern="should handle special characters in prompt names"
 ```
 
-These tests are also run in CI.
+To run all tests:
+
+```sh
+pnpm run test
+```
+
+Run interactively in watch mode (not recommended!)
+
+```sh
+pnpm run test:watch
+```
+
+### Tests in the `worker` package
+
+For the `worker` package, we're using `vitest` to run unit tests.
+
+```sh
+pnpm run test --filter=worker -- FILE_YOU_WANT_TO_TEST.ts -t "test name"
+```
 
 ## CI/CD
 
@@ -397,7 +348,7 @@ The background color of the following component will be `hsl(var(--primary))` an
 | --primary-accent         | Primary accent color used for branding                             | Layout                           |
 | --hover-primary-accent   | Primary accent color used for hover effects for links              | SignIn and AuthCloudRegionSwitch |
 | --muted-green            | Muted green for Event label                                        | ObservationTree                  |
-| --muted-orange           | Muted orange for Generation label                                  | ObservationTree                  |
+| --muted-magenta          | Muted magenta for Generation label                                 | ObservationTree                  |
 | --muted-blue             | Muted blue for Span label                                          | ObservationTree                  |
 | --muted-gray             | Muted gray for disabled status badges                              | StatusBadge                      |
 | --accent-light-green     | Light green accent for background of output and assistant messages | IOPreview, Generations, Traces   |
@@ -439,13 +390,27 @@ You can update the default AI models and prices by adding or updating an entry i
 Please note that
 
 - prices are in USD
-- the list is ordered by ID, so make sure to keep this order
+- the list is ordered by ID, so make sure to keep this order and insert new models at the end of the list
 - the `updated_at` field must be updated with the current date in ISO 8601 format. Otherwise, the change will be ignored.
 
 ### Transition period until V3 release
 
 Until the V3 release, both the JSON record must be updated **and** a migration must be created to continue supporting self-hosted users. Note that the migration must updated both the `models` as well as the `prices` table accordingly.
 
+## Updating the OpenAPI Specs & fern SDKs
+
+We maintain the API specifications manually to guarantee a high degree of understandability. If you made changes to the API, please update the respective `.yml` files in `fern/apis/...`.
+
+To generate the respective `openapi.yml` files which power the online API reference & SDKs, run:
+
+```sh
+npx fern-api generate --api server  # for the server API
+npx fern-api generate --api client  # for the client API
+npx fern-api generate --api organizations  # for the organizations API
+```
+
+**Note:** You need a signed in fern account to run those commands.
+
 ## License
 
 Langfuse is MIT licensed, except for `ee/` folder. See [LICENSE](LICENSE) and [docs](https://langfuse.com/docs/open-source) for more details.

README.cn.md

@@ -0,0 +1,355 @@
+![Langfuse GitHub Banner](https://langfuse.com/images/docs/github-readme/github-banner.png)
+
+<div align="center">
+  <div>
+    <h3>
+    <a href="https://langfuse.com/cn">
+        <strong>🇨🇳 🤝 🪢</strong>
+      </a> · 
+      <a href="https://cloud.langfuse.com">
+        <strong>Langfuse Cloud</strong>
+      </a> · 
+      <a href="https://langfuse.com/docs/deployment/self-host">
+        <strong>自托管</strong>
+      </a> · 
+      <a href="https://langfuse.com/demo">
+        <strong>演示</strong>
+      </a>
+    </h3>
+  </div>
+
+  <div>
+    <a href="https://langfuse.com/docs"><strong>文档</strong></a> ·
+    <a href="https://langfuse.com/issues"><strong>报告问题</strong></a> ·
+    <a href="https://langfuse.com/ideas"><strong>功能请求</strong></a> ·
+    <a href="https://langfuse.com/changelog"><strong>更新日志</strong></a> ·
+    <a href="https://langfuse.com/roadmap"><strong>路线图</strong></a> ·
+  </div>
+  <br/>
+  <span>Langfuse 使用 <a href="https://github.com/orgs/langfuse/discussions"><strong>GitHub Discussions</strong></a> 作为支持和功能请求的平台。</span>
+  <br/>
+  <span><b>我们正在招聘。</b> <a href="https://langfuse.com/careers"><strong>加入我们</strong></a>，从事产品工程和技术市场职位。</span>
+  <br/>
+  <br/>
+  <div>
+  </div>
+</div>
+
+<p align="center">
+  <a href="https://github.com/langfuse/langfuse/blob/main/LICENSE">
+    <img src="https://img.shields.io/badge/License-MIT-E11311.svg" alt="MIT License">
+  </a>
+  <a href="https://www.ycombinator.com/companies/langfuse">
+    <img src="https://img.shields.io/badge/Y%20Combinator-W23-orange" alt="Y Combinator W23">
+  </a>
+  <a href="https://hub.docker.com/u/langfuse" target="_blank">
+    <img alt="Docker Pulls" src="https://img.shields.io/docker/pulls/langfuse/langfuse?labelColor=%20%23FDB062&logo=Docker&labelColor=%20%23528bff">
+  </a>
+  <a href="https://pypi.python.org/pypi/langfuse">
+    <img src="https://img.shields.io/pypi/dm/langfuse?logo=python&logoColor=white&label=pypi%20langfuse&color=blue" alt="langfuse Python package on PyPi">
+  </a>
+  <a href="https://www.npmjs.com/package/langfuse">
+    <img src="https://img.shields.io/npm/dm/langfuse?logo=npm&logoColor=white&label=npm%20langfuse&color=blue" alt="langfuse npm package">
+  </a>
+  <br/>
+  <a href="https://discord.com/invite/7NXusRtqYU" target="_blank">
+    <img src="https://img.shields.io/discord/1111061815649124414?logo=discord&labelColor=%20%235462eb&logoColor=%20%23f5f5f5&color=%20%235462eb"
+         alt="在 Discord 上聊天">
+  </a>
+  <a href="https://twitter.com/intent/follow?screen_name=langfuse" target="_blank">
+    <img src="https://img.shields.io/twitter/follow/langfuse?logo=X&color=%20%23f5f5f5"
+         alt="在 X (Twitter) 上关注">
+  </a>
+  <a href="https://www.linkedin.com/company/langfuse/" target="_blank">
+    <img src="https://custom-icon-badges.demolab.com/badge/LinkedIn-0A66C2?logo=linkedin-white&logoColor=fff"
+         alt="在 LinkedIn 上关注">
+  </a>
+  <a href="https://github.com/langfuse/langfuse/graphs/commit-activity" target="_blank">
+    <img alt="过去一个月的提交" src="https://img.shields.io/github/commit-activity/m/langfuse/langfuse?labelColor=%20%2332b583&color=%20%2312b76a">
+  </a>
+  <a href="https://github.com/langfuse/langfuse/" target="_blank">
+    <img alt="已关闭的问题" src="https://img.shields.io/github/issues-search?query=repo%3Alangfuse%2Flangfuse%20is%3Aclosed&label=issues%20closed&labelColor=%20%237d89b0&color=%20%235d6b98">
+  </a>
+  <a href="https://github.com/langfuse/langfuse/discussions/" target="_blank">
+    <img alt="讨论帖数量" src="https://img.shields.io/github/discussions/langfuse/langfuse?labelColor=%20%239b8afb&color=%20%237a5af8">
+  </a>
+</p>
+
+<p align="center">
+  <a href="./README.md"><img alt="README in English" src="https://img.shields.io/badge/English-d9d9d9"></a>
+  <a href="./README.cn.md"><img alt="简体中文版自述文件" src="https://img.shields.io/badge/简体中文-d9d9d9"></a>
+  <a href="./README.ja.md"><img alt="日本語のREADME" src="https://img.shields.io/badge/日本語-d9d9d9"></a>
+  <a href="./README.kr.md"><img alt="README in Korean" src="https://img.shields.io/badge/한국어-d9d9d9"></a>
+</p>
+
+Langfuse 是一个 **开源 LLM 工程** 平台。它帮助团队协作 **开发、监控、评估** 以及 **调试** AI 应用。Langfuse 可在几分钟内 **自托管**，并且经过 **实战考验**。
+
+[![Langfuse 概览视频](https://github.com/user-attachments/assets/3926b288-ff61-4b95-8aa1-45d041c70866)](https://langfuse.com/watch-demo)
+
+## ✨ 核心特性
+
+![Langfuse 概览](https://langfuse.com/images/docs/github-readme/github-feature-overview.png)
+
+- [LLM 应用可观察性](https://langfuse.com/docs/tracing)：为你的应用插入仪表代码，并开始将追踪数据传送到 Langfuse，从而追踪 LLM 调用及应用中其他相关逻辑（如检索、嵌入或代理操作）。检查并调试复杂日志及用户会话。试试互动的 [演示](https://langfuse.com/docs/demo) 看看效果。
+  
+- [提示管理](https://langfuse.com/docs/prompts/get-started) 帮助你集中管理、版本控制并协作迭代提示。得益于服务器和客户端的高效缓存，你可以在不增加延迟的情况下反复迭代提示。
+
+- [评估](https://langfuse.com/docs/scores/overview) 是 LLM 应用开发流程的关键组成部分，Langfuse 能够满足你的多样需求。它支持 LLM 作为"裁判"、用户反馈收集、手动标注以及通过 API/SDK 实现自定义评估流程。
+
+- [数据集](https://langfuse.com/docs/datasets/overview) 为评估你的 LLM 应用提供测试集和基准。它们支持持续改进、部署前测试、结构化实验、灵活评估，并能与 LangChain、LlamaIndex 等框架无缝整合。
+
+- [LLM 试玩平台](https://langfuse.com/docs/playground) 是用于测试和迭代提示及模型配置的工具，缩短反馈周期，加速开发。当你在追踪中发现异常结果时，可以直接跳转至试玩平台进行调整。
+
+- [综合 API](https://langfuse.com/docs/api)：Langfuse 常用于驱动定制化的 LLMOps 工作流程，同时利用 Langfuse 提供的构建模块和 API。我们提供 OpenAPI 规格、Postman 集合以及针对 Python 和 JS/TS 的类型化 SDK。
+
+## 📦 部署 Langfuse
+
+![Langfuse 部署选项](https://langfuse.com/images/docs/github-readme/github-deployment-options.png)
+
+### Langfuse Cloud
+
+由 Langfuse 团队管理的部署，提供慷慨的免费额度（爱好者计划），无需信用卡。
+
+<div align="center">
+  <a href="https://cloud.langfuse.com" target="_blank">
+    <img alt="注册 Langfuse Cloud" src="https://img.shields.io/badge/»%20Sign%20up%20for%20Langfuse%20Cloud-8A2BE2?&color=orange">
+  </a>
+</div>
+
+### 自托管 Langfuse
+
+在你自己的基础设施上运行 Langfuse：
+
+- [本地（docker compose）](https://langfuse.com/self-hosting/local)：使用 Docker Compose 在你的机器上于 5 分钟内运行 Langfuse。
+
+  ````bash:README.md/docker-compose
+  # 获取最新的 Langfuse 仓库副本
+  git clone https://github.com/langfuse/langfuse.git
+  cd langfuse
+
+  # 运行 Langfuse 的 docker compose
+  docker compose up
+  `````
+
+- [Kubernetes（Helm）](https://langfuse.com/self-hosting/kubernetes-helm)：使用 Helm 在 Kubernetes 集群上部署 Langfuse。这是推荐的生产环境部署方式。
+
+- [虚拟机](https://langfuse.com/self-hosting/docker-compose)：使用 Docker Compose 在单台虚拟机上部署 Langfuse。
+
+- Terraform 模板: [AWS](https://langfuse.com/self-hosting/aws)、[Azure](https://langfuse.com/self-hosting/azure)、[GCP](https://langfuse.com/self-hosting/gcp)
+
+请参阅 [自托管文档](https://langfuse.com/self-hosting) 了解更多关于架构和配置选项的信息。
+
+## 🔌 集成
+
+![Langfuse 集成](https://langfuse.com/images/docs/github-readme/github-integrations.png)
+
+### 主要集成：
+
+| 集成                                                                   | 支持语言/平台            | 描述                                                                                                                                       |
+| ---------------------------------------------------------------------- | ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- |
+| [SDK](https://langfuse.com/docs/sdk)                                    | Python, JS/TS            | 使用 SDK 进行手动仪表化，实现全面灵活性。                                                                                                   |
+| [OpenAI](https://langfuse.com/docs/integrations/openai)                 | Python, JS/TS            | 通过直接替换 OpenAI SDK 实现自动仪表化。                                                                                                    |
+| [Langchain](https://langfuse.com/docs/integrations/langchain)           | Python, JS/TS            | 通过传入回调处理器至 Langchain 应用实现自动仪表化。                                                                                         |
+| [LlamaIndex](https://langfuse.com/docs/integrations/llama-index/get-started) | Python                   | 通过 LlamaIndex 回调系统实现自动仪表化。                                                                                                    |
+| [Haystack](https://langfuse.com/docs/integrations/haystack)             | Python                   | 通过 Haystack 内容追踪系统实现自动仪表化。                                                                                                  |
+| [LiteLLM](https://langfuse.com/docs/integrations/litellm)               | Python, JS/TS (仅代理)     | 允许使用任何 LLM 替代 GPT。支持 Azure、OpenAI、Cohere、Anthropic、Ollama、VLLM、Sagemaker、HuggingFace、Replicate（100+ LLMs）。         |
+| [Vercel AI SDK](https://langfuse.com/docs/integrations/vercel-ai-sdk)     | JS/TS                    | 基于 TypeScript 的工具包，帮助开发者使用 React、Next.js、Vue、Svelte 和 Node.js 构建 AI 驱动的应用。                                           |
+| [API](https://langfuse.com/docs/api)                                    |                          | 直接调用公共 API。提供 OpenAPI 规格。                                                                                                       |
+| [Google VertexAI 和 Gemini](https://langfuse.com/docs/integrations/google-vertex-ai) | 模型                | 在 Google 上运行基础模型和微调模型。                                                                         |
+
+### 与 Langfuse 集成的软件包：
+
+| 名称                                                                   | 类型                | 描述                                                                                                     |
+| ---------------------------------------------------------------------- | ------------------- | -------------------------------------------------------------------------------------------------------- |
+| [Instructor](https://langfuse.com/docs/integrations/instructor)         | 库                  | 用于获取结构化 LLM 输出（JSON、Pydantic）的库。                                                         |
+| [DSPy](https://langfuse.com/docs/integrations/dspy)                     | 库                  | 一个系统性优化语言模型提示和权重的框架。                                                                 |
+| [Amazon Bedrock](https://langfuse.com/docs/integrations/amazon-bedrock) | 模型                | 在 AWS 上运行基础模型和微调模型。                                                                         |
+| [Mirascope](https://langfuse.com/docs/integrations/mirascope)           | 库                  | 构建 LLM 应用的 Python 工具包。                                                                           |
+| [Ollama](https://langfuse.com/docs/integrations/ollama)                 | 模型（本地）         | 在你的机器上轻松运行开源 LLM。                                                                            |
+| [AutoGen](https://langfuse.com/docs/integrations/autogen)               | 代理框架             | 用于构建分布式代理的开源 LLM 平台。                                                                       |
+| [Flowise](https://langfuse.com/docs/integrations/flowise)               | 聊天/代理界面         | 基于 JS/TS 的无代码构建器，用于定制化 LLM 流程。                                                          |
+| [Langflow](https://langfuse.com/docs/integrations/langflow)             | 聊天/代理界面         | 基于 Python 的 LangChain 用户界面，采用 react-flow 设计，提供便捷的实验与原型构建体验。                   |
+| [Dify](https://langfuse.com/docs/integrations/dify)                     | 聊天/代理界面         | 带有无代码构建器的开源 LLM 应用开发平台。                                                                 |
+| [OpenWebUI](https://langfuse.com/docs/integrations/openwebui)           | 聊天/代理界面         | 自托管的 LLM 聊天网页界面，支持包括自托管和本地模型在内的多种 LLM 运行器。                                |
+| [Promptfoo](https://langfuse.com/docs/integrations/promptfoo)           | 工具                | 开源 LLM 测试平台。                                                                                       |
+| [LobeChat](https://langfuse.com/docs/integrations/lobechat)             | 聊天/代理界面         | 开源聊天机器人平台。                                                                                       |
+| [Vapi](https://langfuse.com/docs/integrations/vapi)                     | 平台                | 开源语音 AI 平台。                                                                                        |
+| [Inferable](https://langfuse.com/docs/integrations/other/inferable)     | 代理                | 构建分布式代理的开源 LLM 平台。                                                                            |
+| [Gradio](https://langfuse.com/docs/integrations/other/gradio)           | 聊天/代理界面         | 开源 Python 库，可用于构建类似聊天 UI 的网页界面。                                                        |
+| [Goose](https://langfuse.com/docs/integrations/goose)                   | 代理                | 构建分布式代理的开源 LLM 平台。                                                                            |
+| [smolagents](https://langfuse.com/docs/integrations/smolagents)         | 代理                | 开源 AI 代理框架。                                                                                        |
+| [CrewAI](https://langfuse.com/docs/integrations/crewai)                 | 代理                | 多代理框架，用于实现代理之间的协作与工具调用。                                                           |
+
+## 🚀 快速入门
+
+为你的应用增加仪表代码，并开始将追踪数据上传到 Langfuse，从而记录 LLM 调用及应用中其他相关逻辑（如检索、嵌入或代理操作）。
+
+### 1️⃣ 创建新项目
+
+1. [创建 Langfuse 账户](https://cloud.langfuse.com/auth/sign-up) 或 [自托管](https://langfuse.com/self-hosting)
+2. 创建一个新项目
+3. 在项目设置中创建新的 API 凭证
+
+### 2️⃣ 记录你的第一个 LLM 调用
+
+使用 [<code>@observe()</code> 装饰器](https://langfuse.com/docs/sdk/python/decorators) 可轻松跟踪任何 Python LLM 应用。在本快速入门中，我们还使用了 Langfuse 的 [OpenAI 集成](https://langfuse.com/docs/integrations/openai) 来自动捕获所有模型参数。
+
+> [!提示]
+> 不使用 OpenAI？请访问 [我们的文档](https://langfuse.com/docs/get-started#log-your-first-llm-call-to-langfuse) 了解如何记录其他模型和框架。
+
+安装依赖：
+
+````bash
+pip install langfuse openai
+````
+
+配置环境变量（创建名为 **.env** 的文件）：
+
+````bash:.env
+LANGFUSE_SECRET_KEY="sk-lf-..."
+LANGFUSE_PUBLIC_KEY="pk-lf-..."
+LANGFUSE_HOST="https://cloud.langfuse.com" # 🇪🇺 欧盟区域
+# LANGFUSE_HOST="https://us.cloud.langfuse.com" # 🇺🇸 美洲区域
+````
+
+创建示例代码（文件名：**main.py**）：
+
+```python:main.py
+from langfuse import observe
+from langfuse.openai import openai  # OpenAI 集成
+
+@observe()
+def story():
+    return openai.chat.completions.create(
+        model="gpt-4o",
+        messages=[{"role": "user", "content": "What is Langfuse?"}],
+    ).choices[0].message.content
+
+@observe()
+def main():
+    return story()
+
+main()
+````
+
+### 3️⃣ 在 Langfuse 中查看追踪记录
+
+在 Langfuse 中查看你的语言模型调用及其他应用逻辑。
+
+![示例追踪记录](https://langfuse.com/images/docs/github-readme/github-example-trace.png)
+
+_[Langfuse 中的公共示例追踪](https://cloud.langfuse.com/project/cloramnkj0002jz088vzn1ja4/traces/2cec01e3-3dc2-472f-afcf-3b968cf0c1f4?timestamp=2025-02-10T14%3A27%3A30.275Z&observation=cb5ff844-07ef-41e6-b8e2-6c64344bc13b)_
+
+> [!提示]
+>
+> [了解更多](https://langfuse.com/docs/tracing) 关于 Langfuse 中的追踪，或试试 [互动演示](https://langfuse.com/docs/demo)。
+
+## ⭐️ 给我们加星
+
+![为 Langfuse 加星](https://langfuse.com/images/docs/github-readme/github-star-howto.gif)
+
+## 💭 支持
+
+查找问题答案：
+
+- 我们的 [文档](https://langfuse.com/docs) 是查找答案的最佳起点。内容全面，我们投入大量时间进行维护。你也可以通过 GitHub 提出文档修改建议。
+- [Langfuse 常见问题](https://langfuse.com/faq) 解答了最常见的问题。
+- 使用 "Ask AI" 立即获取问题答案。
+
+支持渠道：
+
+- **在 GitHub Discussions 的 [公共问答](https://github.com/orgs/langfuse/discussions/categories/support) 中提出任何问题。** 请尽量提供详细信息（如代码片段、截图、背景信息）以帮助我们理解你的问题。
+- 在 GitHub Discussions 中 [提出功能请求](https://github.com/orgs/langfuse/discussions/categories/ideas)。
+- 在 GitHub Issues 中 [报告 Bug](https://github.com/langfuse/langfuse/issues)。
+- 对于时效性较强的问题，请通过应用内聊天小部件联系我们。
+
+## 🤝 贡献
+
+欢迎你的贡献！
+
+- 在 GitHub Discussions 中为 [想法](https://github.com/orgs/langfuse/discussions/categories/ideas)投票。
+- 提出并评论 [问题](https://github.com/langfuse/langfuse/issues)。
+- 提交 PR —— 详情请参见 [CONTRIBUTING.md](CONTRIBUTING.md)，了解如何搭建开发环境。
+
+## 🥇 许可证
+
+除 `ee` 文件夹外，本仓库采用 MIT 许可证。详情请参见 [LICENSE](LICENSE) 以及 [文档](https://langfuse.com/docs/open-source)。
+
+## ⭐️ 星标历史
+
+<a href="https://star-history.com/#langfuse/langfuse&Date">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date&theme=dark" />
+    <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" />
+    <img alt="星标历史图表" src="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" style="border-radius: 15px;" />
+  </picture>
+</a>
+
+## ❤️ 使用 Langfuse 的开源项目
+
+以下是使用 Langfuse 的顶级开源 Python 项目，按星标数排名（[来源](https://github.com/langfuse/langfuse-docs/blob/main/components-mdx/dependents)）：
+
+| 仓库                                                                                                                                                                                                                                                             | 星数  |
+| :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----: |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/127165244?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langgenius](https://github.com/langgenius) / [dify](https://github.com/langgenius/dify)                                      | 54865 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [open-webui](https://github.com/open-webui/open-webui)                            | 51531 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/131470832?s=40&v=4" width="20" height="20" alt=""> &nbsp; [lobehub](https://github.com/lobehub) / [lobe-chat](https://github.com/lobehub/lobe-chat)                                   | 49003 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85702467?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langflow-ai](https://github.com/langflow-ai) / [langflow](https://github.com/langflow-ai/langflow)                              | 39093 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/130722866?s=40&v=4" width="20" height="20" alt=""> &nbsp; [run-llama](https://github.com/run-llama) / [llama_index](https://github.com/run-llama/llama_index)                                 | 37368 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/139558948?s=40&v=4" width="20" height="20" alt=""> &nbsp; [chatchat-space](https://github.com/chatchat-space) / [Langchain-Chatchat](https://github.com/chatchat-space/Langchain-Chatchat)    | 32486 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/128289781?s=40&v=4" width="20" height="20" alt=""> &nbsp; [FlowiseAI](https://github.com/FlowiseAI) / [Flowise](https://github.com/FlowiseAI/Flowise)                                      | 32448 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/31035808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mindsdb](https://github.com/mindsdb) / [mindsdb](https://github.com/mindsdb/mindsdb)                                             | 26931 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/119600397?s=40&v=4" width="20" height="20" alt=""> &nbsp; [twentyhq](https://github.com/twentyhq) / [twenty](https://github.com/twentyhq/twenty)                                   | 24195 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog](https://github.com/PostHog/posthog)                                             | 22618 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/121462774?s=40&v=4" width="20" height="20" alt=""> &nbsp; [BerriAI](https://github.com/BerriAI) / [litellm](https://github.com/BerriAI/litellm)                                    | 15151 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/179202840?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mediar-ai](https://github.com/mediar-ai) / [screenpipe](https://github.com/mediar-ai/screenpipe)                            | 11037 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/105877416?s=40&v=4" width="20" height="20" alt=""> &nbsp; [formbricks](https://github.com/formbricks) / [formbricks](https://github.com/formbricks/formbricks)                         |  9386 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/76263028?s=40&v=4" width="20" height="20" alt=""> &nbsp; [anthropics](https://github.com/anthropics) / [courses](https://github.com/anthropics/courses)                                |  8385 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/78410652?s=40&v=4" width="20" height="20" alt=""> &nbsp; [GreyDGL](https://github.com/GreyDGL) / [PentestGPT](https://github.com/GreyDGL/PentestGPT)                           |  7374 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/152537519?s=40&v=4" width="20" height="20" alt=""> &nbsp; [superagent-ai](https://github.com/superagent-ai) / [superagent](https://github.com/superagent-ai/superagent)               |  5391 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/137907881?s=40&v=4" width="20" height="20" alt=""> &nbsp; [promptfoo](https://github.com/promptfoo) / [promptfoo](https://github.com/promptfoo/promptfoo)                           |  4976 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/157326433?s=40&v=4" width="20" height="20" alt=""> &nbsp; [onlook-dev](https://github.com/onlook-dev) / [onlook](https://github.com/onlook-dev/onlook)                                  |  4141 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/7250217?s=40&v=4" width="20" height="20" alt=""> &nbsp; [Canner](https://github.com/Canner) / [WrenAI](https://github.com/Canner/WrenAI)                                      |  2526 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/11855343?s=40&v=4" width="20" height="20" alt=""> &nbsp; [pingcap](https://github.com/pingcap) / [autoflow](https://github.com/pingcap/autoflow)                                  |  2061 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85268109?s=40&v=4" width="20" height="20" alt=""> &nbsp; [MLSysOps](https://github.com/MLSysOps) / [MLE-agent](https://github.com/MLSysOps/MLE-agent)                         |  1161 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [pipelines](https://github.com/open-webui/pipelines)                          |  1100 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/18422723?s=40&v=4" width="20" height="20" alt=""> &nbsp; [alishobeiri](https://github.com/alishobeiri) / [thread](https://github.com/alishobeiri/thread)                           |  1074 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/125468716?s=40&v=4" width="20" height="20" alt=""> &nbsp; [topoteretes](https://github.com/topoteretes) / [cognee](https://github.com/topoteretes/cognee)                          |   971 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/188657705?s=40&v=4" width="20" height="20" alt=""> &nbsp; [bRAGAI](https://github.com/bRAGAI) / [bRAG-langchain](https://github.com/bRAGAI/bRAG-langchain)                         |   823 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169500408?s=40&v=4" width="20" height="20" alt=""> &nbsp; [opslane](https://github.com/opslane) / [opslane](https://github.com/opslane/opslane)                             |   677 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/151867818?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dynamiq-ai](https://github.com/dynamiq-ai) / [dynamiq](https://github.com/dynamiq-ai/dynamiq)                         |   639 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/48585267?s=40&v=4" width="20" height="20" alt=""> &nbsp; [theopenconversationkit](https://github.com/theopenconversationkit) / [tock](https://github.com/theopenconversationkit/tock) |   514 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/20493493?s=40&v=4" width="20" height="20" alt=""> &nbsp; [andysingal](https://github.com/andysingal) / [llm-course](https://github.com/andysingal/llm-course)                         |   394 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/132396805?s=40&v=4" width="20" height="20" alt=""> &nbsp; [phospho-app](https://github.com/phospho-app) / [phospho](https://github.com/phospho-app/phospho)                           |   384 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/178644984?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sentient-engineering](https://github.com/sentient-engineering) / [agent-q](https://github.com/sentient-engineering/agent-q) |   370 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/168552753?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sql-agi](https://github.com/sql-agi) / [DB-GPT](https://github.com/sql-agi/DB-GPT)                          |   324 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog-foss](https://github.com/PostHog/posthog-foss)                           |   305 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/154247157?s=40&v=4" width="20" height="20" alt=""> &nbsp; [vespperhq](https://github.com/vespperhq) / [vespper](https://github.com/vespperhq/vespper)                         |   304 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/185116535?s=40&v=4" width="20" height="20" alt=""> &nbsp; [block](https://github.com/block) / [goose](https://github.com/block/goose)                                  |   295 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/609489?s=40&v=4" width="20" height="20" alt=""> &nbsp; [aorwall](https://github.com/aorwall) / [moatless-tools](https://github.com/aorwall/moatless-tools)                 |   291 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/2357342?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dmayboroda](https://github.com/dmayboroda) / [minima](https://github.com/dmayboroda/minima)                          |   221 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/66303003?s=40&v=4" width="20" height="20" alt=""> &nbsp; [RobotecAI](https://github.com/RobotecAI) / [rai](https://github.com/RobotecAI/rai)                              |   172 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/148684274?s=40&v=4" width="20" height="20" alt=""> &nbsp; [i-am-alice](https://github.com/i-am-alice) / [3rd-devs](https://github.com/i-am-alice/3rd-devs)                   |   148 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/171735272?s=40&v=4" width="20" height="20" alt=""> &nbsp; [8090-inc](https://github.com/8090-inc) / [xrx-sample-apps](https://github.com/8090-inc/xrx-sample-apps)       |   138 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/104478511?s=40&v=4" width="20" height="20" alt=""> &nbsp; [babelcloud](https://github.com/babelcloud) / [LLM-RGB](https://github.com/babelcloud/LLM-RGB)                  |   135 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/15125613?s=40&v=4" width="20" height="20" alt=""> &nbsp; [souzatharsis](https://github.com/souzatharsis) / [tamingLLMs](https://github.com/souzatharsis/tamingLLMs)        |   129 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169401942?s=40&v=4" width="20" height="20" alt=""> &nbsp; [LibreChat-AI](https://github.com/LibreChat-AI) / [librechat.ai](https://github.com/LibreChat-AI/librechat.ai)   |   128 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/51827949?s=40&v=4" width="20" height="20" alt=""> &nbsp; [deepset-ai](https://github.com/deepset-ai) / [haystack-core-integrations](https://github.com/deepset-ai/haystack-core-integrations) |   126 |
+
+## 🔒 安全与隐私
+
+我们非常重视数据安全和隐私。更多信息请参阅我们的 [安全与隐私](https://langfuse.com/security) 页面。
+
+### 遥测
+
+默认情况下，Langfuse 会自动将自托管实例的基础使用统计数据上传至集中服务器（PostHog）。
+
+这有助于我们：
+
+1. 了解 Langfuse 的使用情况，并改进最关键的功能。
+2. 跟踪整体使用数据，以便内部及外部（例如筹款）报告。
+
+所有数据均不会与第三方共享，也不包含任何敏感信息。我们对这一过程保持高度透明，你可以在 [此处](/web/src/features/telemetry/index.ts) 查看我们收集的具体数据。
+
+你可以通过设置 `TELEMETRY_ENABLED=false` 来选择退出。
+```

README.ja.md

@@ -0,0 +1,359 @@
+![Langfuse GitHub Banner](https://langfuse.com/images/docs/github-readme/github-banner.png)
+
+<div align="center">
+   <div>
+      <h3>
+          <a href="https://langfuse.com/jp">
+            <strong>🇯🇵 🤝 🪢</strong>
+         </a> · 
+         <a href="https://cloud.langfuse.com">
+            <strong>Langfuse Cloud</strong>
+         </a> · 
+         <a href="https://langfuse.com/docs/deployment/self-host">
+            <strong>セルフホスティング</strong>
+         </a> · 
+         <a href="https://langfuse.com/demo">
+            <strong>デモ</strong>
+         </a>
+      </h3>
+   </div>
+
+   <div>
+      <a href="https://langfuse.com/docs"><strong>ドキュメント</strong></a> ·
+      <a href="https://langfuse.com/issues"><strong>バグ報告</strong></a> ·
+      <a href="https://langfuse.com/ideas"><strong>機能リクエスト</strong></a> ·
+      <a href="https://langfuse.com/changelog"><strong>変更履歴</strong></a> ·
+      <a href="https://langfuse.com/roadmap"><strong>ロードマップ</strong></a> ·
+   </div>
+   <br/>
+   <span>Langfuseは、サポートと機能リクエストのために <a href="https://github.com/orgs/langfuse/discussions"><strong>GitHub Discussions</strong></a> を利用しています。</span>
+   <br/>
+   <span><b>We're hiring.</b> <a href="https://langfuse.com/careers"><strong>チームに加わる</strong></a> （製品エンジニアリングおよびテクニカルGTMのポジション）への応募をお待ちしています。</span>
+   <br/>
+   <br/>
+   <div>
+   </div>
+</div>
+
+<p align="center">
+   <a href="https://github.com/langfuse/langfuse/blob/main/LICENSE">
+   <img src="https://img.shields.io/badge/License-MIT-E11311.svg" alt="MIT License">
+   </a>
+   <a href="https://www.ycombinator.com/companies/langfuse"><img src="https://img.shields.io/badge/Y%20Combinator-W23-orange" alt="Y Combinator W23"></a>
+   <a href="https://hub.docker.com/u/langfuse" target="_blank">
+   <img alt="Docker Pulls" src="https://img.shields.io/docker/pulls/langfuse/langfuse?labelColor=%20%23FDB062&logo=Docker&labelColor=%20%23528bff"></a>
+   <a href="https://pypi.python.org/pypi/langfuse"><img src="https://img.shields.io/pypi/dm/langfuse?logo=python&logoColor=white&label=pypi%20langfuse&color=blue" alt="langfuse Python package on PyPi"></a>
+   <a href="https://www.npmjs.com/package/langfuse"><img src="https://img.shields.io/npm/dm/langfuse?logo=npm&logoColor=white&label=npm%20langfuse&color=blue" alt="langfuse npm package"></a>
+   <br/>
+   <a href="https://discord.com/invite/7NXusRtqYU" target="_blank">
+   <img src="https://img.shields.io/discord/1111061815649124414?logo=discord&labelColor=%20%235462eb&logoColor=%20%23f5f5f5&color=%20%235462eb"
+      alt="chat on Discord"></a>
+   <a href="https://twitter.com/intent/follow?screen_name=langfuse" target="_blank">
+   <img src="https://img.shields.io/twitter/follow/langfuse?logo=X&color=%20%23f5f5f5"
+      alt="follow on X(Twitter)"></a>
+   <a href="https://www.linkedin.com/company/langfuse/" target="_blank">
+   <img src="https://custom-icon-badges.demolab.com/badge/LinkedIn-0A66C2?logo=linkedin-white&logoColor=fff"
+      alt="follow on LinkedIn"></a>
+   <a href="https://github.com/langfuse/langfuse/graphs/commit-activity" target="_blank">
+   <img alt="Commits last month" src="https://img.shields.io/github/commit-activity/m/langfuse/langfuse?labelColor=%20%2332b583&color=%20%2312b76a"></a>
+   <a href="https://github.com/langfuse/langfuse/" target="_blank">
+   <img alt="Issues closed" src="https://img.shields.io/github/issues-search?query=repo%3Alangfuse%2Flangfuse%20is%3Aclosed&label=issues%20closed&labelColor=%20%237d89b0&color=%20%235d6b98"></a>
+   <a href="https://github.com/langfuse/langfuse/discussions/" target="_blank">
+   <img alt="Discussion posts" src="https://img.shields.io/github/discussions/langfuse/langfuse?labelColor=%20%239b8afb&color=%20%237a5af8"></a>
+</p>
+
+<p align="center">
+  <a href="./README.md"><img alt="README in English" src="https://img.shields.io/badge/English-d9d9d9"></a>
+  <a href="./README.cn.md"><img alt="简体中文版自述文件" src="https://img.shields.io/badge/简体中文-d9d9d9"></a>
+  <a href="./README.ja.md"><img alt="日本語のREADME" src="https://img.shields.io/badge/日本語-d9d9d9"></a>
+  <a href="./README.kr.md"><img alt="README in Korean" src="https://img.shields.io/badge/한국어-d9d9d9"></a>
+</p>
+
+Langfuseは**オープンソースのLLMエンジニアリング**プラットフォームです。  
+チームが共同でAIアプリケーションを**開発、監視、評価**、および**デバッグ**するのを支援します。  
+Langfuseは**数分でセルフホスト可能**で、**多くの実績を持つ**システムです。
+
+[![Langfuse Overview Video](https://github.com/user-attachments/assets/3926b288-ff61-4b95-8aa1-45d041c70866)](https://langfuse.com/watch-demo)
+
+## ✨ コア機能
+
+![Langfuse Overview](https://langfuse.com/images/docs/github-readme/github-feature-overview.png)
+
+- **[LLMアプリケーションの可観測性](https://langfuse.com/docs/tracing):**  
+  アプリケーションにインストゥルメンテーションを導入し、Langfuseへトレースを取り込むことで、LLM呼び出しやリトリーバル、埋め込み、エージェントアクションなどの関連ロジックを追跡できます。  
+  複雑なログやユーザーセッションを解析・デバッグできます。  
+  インタラクティブな[デモ](https://langfuse.com/docs/demo)で動作を確認してください。
+
+- **[プロンプト管理](https://langfuse.com/docs/prompts/get-started):**  
+  プロンプトを一元管理し、バージョン管理しながら共同で改善を行えます。  
+  サーバーおよびクライアント側で強力なキャッシングを行うため、アプリケーションのレイテンシを増やすことなくプロンプトの改良が可能です。
+
+- **[評価](https://langfuse.com/docs/scores/overview):**  
+  評価はLLMアプリケーション開発ワークフローの要であり、Langfuseは多様なニーズに対応します。  
+  LLMを判定者として用いる方法、ユーザーフィードバックの収集、手動によるラベリング、API/SDKを通じたカスタム評価パイプラインをサポートします。
+
+- **[データセット](https://langfuse.com/docs/datasets/overview):**  
+  LLMアプリケーション評価用のテストセットやベンチマークを構築できます。  
+  継続的な改善、事前デプロイテスト、構造化された実験、柔軟な評価、さらにLangChainやLlamaIndexなどとのシームレスな統合をサポートします。
+
+- **[LLMプレイグラウンド](https://langfuse.com/docs/playground):**  
+  プロンプトやモデル設定のテスト・反復作業を支援するツールで、フィードバックループを短縮し開発を加速します。  
+  トレースで不具合が見つかった場合、直接プレイグラウンドへ飛び、迅速に改善できます。
+
+- **[包括的なAPI](https://langfuse.com/docs/api):**  
+  LangfuseはAPIを通じて提供されるビルディングブロックを用い、カスタムLLMOpsワークフローの基盤として頻繁に利用されます。  
+  OpenAPI仕様、Postmanコレクション、PythonやJS/TS向けの型付きSDKが利用可能です。
+
+## 📦 Langfuseのデプロイ
+
+![Langfuse Deployment Options](https://langfuse.com/images/docs/github-readme/github-deployment-options.png)
+
+### Langfuse Cloud
+
+Langfuseチームによるマネージドデプロイメント。充実した無料プラン（ホビープラン）で、クレジットカード不要です。
+
+<div align="center">
+    <a href="https://cloud.langfuse.com" target="_blank">
+        <img alt="Static Badge" src="https://img.shields.io/badge/»%20Sign%20up%20for%20Langfuse%20Cloud-8A2BE2?&color=orange">
+    </a>
+</div>
+
+### セルフホスティング Langfuse
+
+自身のインフラ上でLangfuseを実行できます:
+
+- **[Local (docker compose)](https://langfuse.com/self-hosting/local):**  
+  Docker Composeを使用して、たった5分で自分のマシン上でLangfuseを実行できます.
+
+  ```bash
+  # 最新のLangfuseリポジトリのコピーを取得
+  git clone https://github.com/langfuse/langfuse.git
+  cd langfuse
+
+  # Langfuseのdocker composeを起動
+  docker compose up
+  ```
+
+- **[Kubernetes (Helm)](https://langfuse.com/self-hosting/kubernetes-helm):**  
+  Helmを使用してKubernetesクラスター上でLangfuseを実行します。  
+  こちらが推奨される本番環境でのデプロイ方法です。
+
+- **[VM](https://langfuse.com/self-hosting/docker-compose):**  
+  Docker Composeを使用して、単一の仮想マシン上でLangfuseを実行します。
+
+- Terraform テンプレート: [AWS](https://langfuse.com/self-hosting/aws), [Azure](https://langfuse.com/self-hosting/azure), [GCP](https://langfuse.com/self-hosting/gcp)
+
+[セルフホスティングのドキュメント](https://langfuse.com/self-hosting)を参照し、アーキテクチャや設定オプションの詳細をご確認ください。
+
+## 🔌 インテグレーション
+
+![Langfuse Integrations](https://langfuse.com/images/docs/github-readme/github-integrations.png)
+
+### 主なインテグレーション:
+
+| インテグレーション                                                                  | 対応言語・環境            | 説明                                                                                                                                           |
+| ----------------------------------------------------------------------------------- | ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- |
+| [SDK](https://langfuse.com/docs/sdk)                                                  | Python, JS/TS             | SDKを利用して手動でインストゥルメンテーションを実装し、完全な柔軟性を提供します。                                                                  |
+| [OpenAI](https://langfuse.com/docs/integrations/openai)                               | Python, JS/TS             | OpenAI SDKのドロップイン置換による自動インストゥルメンテーションを実現します。                                                                   |
+| [Langchain](https://langfuse.com/docs/integrations/langchain)                         | Python, JS/TS             | Langchainアプリケーションにコールバックハンドラーを渡すことで自動的に計測します。                                                                 |
+| [LlamaIndex](https://langfuse.com/docs/integrations/llama-index/get-started)           | Python                    | LlamaIndexのコールバックシステムを介して自動的にインストゥルメントします。                                                                         |
+| [Haystack](https://langfuse.com/docs/integrations/haystack)                           | Python                    | Haystackのコンテンツトレースシステムを利用した自動インストゥルメンテーションを実現します。                                                          |
+| [LiteLLM](https://langfuse.com/docs/integrations/litellm)                             | Python, JS/TS (proxy only)| GPTのドロップイン置換として任意のLLMを使用できます。Azure、OpenAI、Cohere、Anthropic、Ollama、VLLM、Sagemaker、HuggingFace、Replicate（100+ LLM）に対応。 |
+| [Vercel AI SDK](https://langfuse.com/docs/integrations/vercel-ai-sdk)                   | JS/TS                     | React、Next.js、Vue、Svelte、Node.jsを使用してAI搭載アプリケーションの構築を支援するTypeScriptツールキットです。                                      |
+| [API](https://langfuse.com/docs/api)                                                  |                           | 公開APIを直接呼び出すことが可能です。OpenAPI仕様も利用できます。                                                                                 |
+
+### Langfuseと統合されているパッケージ:
+
+| 名前                                                                      | タイプ             | 説明                                                                                                      |
+| ------------------------------------------------------------------------- | ------------------ | --------------------------------------------------------------------------------------------------------- |
+| [Instructor](https://langfuse.com/docs/integrations/instructor)           | ライブラリ         | 構造化されたLLM出力（JSON、Pydantic）を取得するためのライブラリ                                            |
+| [DSPy](https://langfuse.com/docs/integrations/dspy)                       | ライブラリ         | LLMプロンプトや重み付けを体系的に最適化するためのフレームワーク                                             |
+| [Mirascope](https://langfuse.com/docs/integrations/mirascope)             | ライブラリ         | LLMアプリケーション構築用のPythonツールキット                                                               |
+| [Ollama](https://langfuse.com/docs/integrations/ollama)                   | モデル（ローカル） | オープンソースLLMを手軽にローカルで実行するためのツール                                                     |
+| [Amazon Bedrock](https://langfuse.com/docs/integrations/amazon-bedrock)     | モデル             | AWS上でファウンデーションモデルやファインチューニング済みモデルを実行                                         |
+| [Google VertexAI and Gemini](https://langfuse.com/docs/integrations/google-vertex-ai)     | モデル             | Google上でファウンデーションモデルやファインチューニング済みモデルを実行                                         |
+| [AutoGen](https://langfuse.com/docs/integrations/autogen)                 | エージェントフレームワーク | 分散型エージェント構築のためのオープンソースLLMプラットフォーム                                               |
+| [Flowise](https://langfuse.com/docs/integrations/flowise)                 | チャット/エージェント UI | JS/TSのノーコードビルダーで、カスタマイズ可能なLLMフローを構築                                              |
+| [Langflow](https://langfuse.com/docs/integrations/langflow)               | チャット/エージェント UI | PythonベースのUIで、react-flowを用いてLangChainの実験やプロトタイピングを容易に実現                           |
+| [Dify](https://langfuse.com/docs/integrations/dify)                       | チャット/エージェント UI | ノーコードでLLMアプリ開発が可能なオープンソースプラットフォーム                                               |
+| [OpenWebUI](https://langfuse.com/docs/integrations/openwebui)             | チャット/エージェント UI | 自前ホストおよびローカルモデルに対応するLLMチャットWeb UI                                                    |
+| [Promptfoo](https://langfuse.com/docs/integrations/promptfoo)             | ツール             | オープンソースのLLMテストプラットフォーム                                                                   |
+| [LobeChat](https://langfuse.com/docs/integrations/lobechat)               | チャット/エージェント UI | オープンソースのチャットボットプラットフォーム                                                               |
+| [Vapi](https://langfuse.com/docs/integrations/vapi)                       | プラットフォーム   | オープンソースの音声AIプラットフォーム                                                                       |
+| [Inferable](https://langfuse.com/docs/integrations/other/inferable)        | エージェント       | 分散型エージェント構築のためのオープンソースLLMプラットフォーム                                               |
+| [Gradio](https://langfuse.com/docs/integrations/other/gradio)             | チャット/エージェント UI | チャットUIなどのWebインターフェース構築のためのオープンソースPythonライブラリ                                |
+| [Goose](https://langfuse.com/docs/integrations/goose)                   | エージェント       | 分散型エージェント構築のためのオープンソースLLMプラットフォーム                                               |
+| [smolagents](https://langfuse.com/docs/integrations/smolagents)           | エージェント       | オープンソースのAIエージェントフレームワーク                                                                 |
+| [CrewAI](https://langfuse.com/docs/integrations/crewai)                   | エージェント       | エージェントの協調とツール利用を実現するマルチエージェントフレームワーク                                      |
+
+## 🚀 クイックスタート
+
+アプリケーションにインストゥルメンテーションを導入し、LLM呼び出しやリトリーバル、埋め込み、エージェントアクションなどの動作をLangfuseに記録しましょう。  
+複雑なログやユーザーセッションの解析・デバッグが可能になります。
+
+### 1️⃣ 新規プロジェクトの作成
+
+1. [Langfuseアカウント作成](https://cloud.langfuse.com/auth/sign-up) または [セルフホスト](https://langfuse.com/self-hosting)
+2. 新規プロジェクトを作成
+3. プロジェクト設定で新しいAPIクレデンシャルを作成
+
+### 2️⃣ 初めてのLLM呼び出しのログ記録
+
+[`@observe()` デコレーター](https://langfuse.com/docs/sdk/python/decorators)を利用することで、任意のPython製LLMアプリケーションのトレースが簡単に行えます。  
+このクイックスタートでは、Langfuseの[OpenAI統合](https://langfuse.com/docs/integrations/openai)を使用して、全てのモデルパラメータを自動で取得します。
+
+> [!TIP]
+> OpenAIを利用していない場合は、[こちらのドキュメント](https://langfuse.com/docs/get-started#log-your-first-llm-call-to-langfuse)で、他のモデルやフレームワークのログ記録方法をご確認ください。
+
+```bash
+pip install langfuse openai
+```
+
+```bash filename=".env"
+LANGFUSE_SECRET_KEY="sk-lf-..."
+LANGFUSE_PUBLIC_KEY="pk-lf-..."
+LANGFUSE_HOST="https://cloud.langfuse.com" # 🇪🇺 EUリージョン
+# LANGFUSE_HOST="https://us.cloud.langfuse.com" # 🇺🇸 USリージョン
+```
+
+```python:/@observe()/ /from langfuse.openai import openai/ filename="main.py"
+from langfuse import observe
+from langfuse.openai import openai  # OpenAI統合
+
+@observe()
+def story():
+    return openai.chat.completions.create(
+        model="gpt-4o",
+        messages=[{"role": "user", "content": "What is Langfuse?"}],
+    ).choices[0].message.content
+
+@observe()
+def main():
+    return story()
+
+main()
+```
+
+### 3️⃣ Langfuseでトレースを確認する
+
+Langfuse上で、LLM呼び出しおよびその他のアプリケーションロジックのトレースを確認できます。
+
+![Example trace in Langfuse](https://langfuse.com/images/docs/github-readme/github-example-trace.png)
+
+_[Langfuseの公開トレース例](https://cloud.langfuse.com/project/cloramnkj0002jz088vzn1ja4/traces/2cec01e3-3dc2-472f-afcf-3b968cf0c1f4?timestamp=2025-02-10T14%3A27%3A30.275Z&observation=cb5ff844-07ef-41e6-b8e2-6c64344bc13b)_
+
+> [!TIP]
+>
+> Langfuseでのトレースの詳細については、[こちら](https://langfuse.com/docs/tracing)をご参照いただくか、[インタラクティブデモ](https://langfuse.com/docs/demo)でお試しください。
+
+## ⭐️ Star Langfuse
+
+![Star Langfuse](https://langfuse.com/images/docs/github-readme/github-star-howto.gif)
+
+## 💭 サポート
+
+質問の回答をお探しの場合は:
+
+- 当社の[ドキュメント](https://langfuse.com/docs)は、回答を探すための最良の出発点です。内容が充実しており、継続的なメンテナンスに努めています。GitHubを通じてドキュメントへの修正提案も可能です。
+- よくある質問は[Langfuse FAQ](https://langfuse.com/faq)にまとめられています。
+- [Ask AI](https://langfuse.com/docs/ask-ai)を利用すれば、質問に対して即座に回答を得ることができます。
+- 日本語のサポートや決済, 請求書払いなどをお求めの場合は、日本のリセラー (https://gao-ai.com) にご相談ください。
+
+サポートチャネル:
+
+- **GitHub Discussionsの[パブリックQ&A](https://github.com/orgs/langfuse/discussions/categories/support)で質問してください。**  
+  質問には、コードスニペット、スクリーンショット、背景情報など、できるだけ詳細な情報を含めるとスムーズな対応が可能です。
+- GitHub Discussionsで[機能リクエスト](https://github.com/orgs/langfuse/discussions/categories/ideas)を投稿してください。
+- GitHub Issuesにて[バグ報告](https://github.com/langfuse/langfuse/issues)を行ってください。
+- 緊急の問い合わせの場合は、アプリ内チャットウィジェットでご連絡ください。
+
+## 🤝 貢献
+
+皆様からの貢献を歓迎します!
+
+- GitHub Discussionsの[アイデア](https://github.com/orgs/langfuse/discussions/categories/ideas)に投票してください。
+- [Issues](https://github.com/langfuse/langfuse/issues)を作成・コメントしてください。
+- プルリクエストを送信してください。開発環境のセットアップ方法については[CONTRIBUTING.md](CONTRIBUTING.md)をご参照ください。
+
+## 🥇 ライセンス
+
+このリポジトリは、`ee`フォルダを除き、MITライセンスの下で公開されています。  
+詳細は[LICENSE](LICENSE)および[オープンソースに関するドキュメント](https://langfuse.com/docs/open-source)をご確認ください。
+
+## ⭐️ スターの履歴
+
+<a href="https://star-history.com/#langfuse/langfuse&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" style="border-radius: 15px;" />
+ </picture>
+</a>
+
+## ❤️ Langfuseを利用しているオープンソースプロジェクト
+
+Langfuseを利用している主要なオープンソースPythonプロジェクト（スター数順）: ([出典](https://github.com/langfuse/langfuse-docs/blob/main/components-mdx/dependents))
+
+| リポジトリ                                                                                                                                                                                                                                                          | スター |
+| :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----: |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/127165244?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langgenius](https://github.com/langgenius) / [dify](https://github.com/langgenius/dify)                                            | 54865 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [open-webui](https://github.com/open-webui/open-webui)                                | 51531 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/131470832?s=40&v=4" width="20" height="20" alt=""> &nbsp; [lobehub](https://github.com/lobehub) / [lobe-chat](https://github.com/lobehub/lobe-chat)                                           | 49003 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85702467?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langflow-ai](https://github.com/langflow-ai) / [langflow](https://github.com/langflow-ai/langflow)                                  | 39093 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/130722866?s=40&v=4" width="20" height="20" alt=""> &nbsp; [run-llama](https://github.com/run-llama) / [llama_index](https://github.com/run-llama/llama_index)                                 | 37368 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/139558948?s=40&v=4" width="20" height="20" alt=""> &nbsp; [chatchat-space](https://github.com/chatchat-space) / [Langchain-Chatchat](https://github.com/chatchat-space/Langchain-Chatchat)    | 32486 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/128289781?s=40&v=4" width="20" height="20" alt=""> &nbsp; [FlowiseAI](https://github.com/FlowiseAI) / [Flowise](https://github.com/FlowiseAI/Flowise)                                         | 32448 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/31035808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mindsdb](https://github.com/mindsdb) / [mindsdb](https://github.com/mindsdb/mindsdb)                                                | 26931 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/119600397?s=40&v=4" width="20" height="20" alt=""> &nbsp; [twentyhq](https://github.com/twentyhq) / [twenty](https://github.com/twentyhq/twenty)                                              | 24195 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog](https://github.com/PostHog/posthog)                                                | 22618 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/121462774?s=40&v=4" width="20" height="20" alt=""> &nbsp; [BerriAI](https://github.com/BerriAI) / [litellm](https://github.com/BerriAI/litellm)                                               | 15151 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/179202840?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mediar-ai](https://github.com/mediar-ai) / [screenpipe](https://github.com/mediar-ai/screenpipe)                                   | 11037 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/105877416?s=40&v=4" width="20" height="20" alt=""> &nbsp; [formbricks](https://github.com/formbricks) / [formbricks](https://github.com/formbricks/formbricks)                                |  9386 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/76263028?s=40&v=4" width="20" height="20" alt=""> &nbsp; [anthropics](https://github.com/anthropics) / [courses](https://github.com/anthropics/courses)                                       |  8385 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/78410652?s=40&v=4" width="20" height="20" alt=""> &nbsp; [GreyDGL](https://github.com/GreyDGL) / [PentestGPT](https://github.com/GreyDGL/PentestGPT)                                          |  7374 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/152537519?s=40&v=4" width="20" height="20" alt=""> &nbsp; [superagent-ai](https://github.com/superagent-ai) / [superagent](https://github.com/superagent-ai/superagent)                       |  5391 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/137907881?s=40&v=4" width="20" height="20" alt=""> &nbsp; [promptfoo](https://github.com/promptfoo) / [promptfoo](https://github.com/promptfoo/promptfoo)                                     |  4976 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/157326433?s=40&v=4" width="20" height="20" alt=""> &nbsp; [onlook-dev](https://github.com/onlook-dev) / [onlook](https://github.com/onlook-dev/onlook)                                        |  4141 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/7250217?s=40&v=4" width="20" height="20" alt=""> &nbsp; [Canner](https://github.com/Canner) / [WrenAI](https://github.com/Canner/WrenAI)                                                      |  2526 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/11855343?s=40&v=4" width="20" height="20" alt=""> &nbsp; [pingcap](https://github.com/pingcap) / [autoflow](https://github.com/pingcap/autoflow)                                              |  2061 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85268109?s=40&v=4" width="20" height="20" alt=""> &nbsp; [MLSysOps](https://github.com/MLSysOps) / [MLE-agent](https://github.com/MLSysOps/MLE-agent)                                         |  1161 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [pipelines](https://github.com/open-webui/pipelines)                                  |  1100 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/18422723?s=40&v=4" width="20" height="20" alt=""> &nbsp; [alishobeiri](https://github.com/alishobeiri) / [thread](https://github.com/alishobeiri/thread)                                      |  1074 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/125468716?s=40&v=4" width="20" height="20" alt=""> &nbsp; [topoteretes](https://github.com/topoteretes) / [cognee](https://github.com/topoteretes/cognee)                                     |   971 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/188657705?s=40&v=4" width="20" height="20" alt=""> &nbsp; [bRAGAI](https://github.com/bRAGAI) / [bRAG-langchain](https://github.com/bRAGAI/bRAG-langchain)                                    |   823 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169500408?s=40&v=4" width="20" height="20" alt=""> &nbsp; [opslane](https://github.com/opslane) / [opslane](https://github.com/opslane/opslane)                                               |   677 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/151867818?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dynamiq-ai](https://github.com/dynamiq-ai) / [dynamiq](https://github.com/dynamiq-ai/dynamiq)                                      |   639 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/48585267?s=40&v=4" width="20" height="20" alt=""> &nbsp; [theopenconversationkit](https://github.com/theopenconversationkit) / [tock](https://github.com/theopenconversationkit/tock)         |   514 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/20493493?s=40&v=4" width="20" height="20" alt=""> &nbsp; [andysingal](https://github.com/andysingal) / [llm-course](https://github.com/andysingal/llm-course)                                 |   394 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/132396805?s=40&v=4" width="20" height="20" alt=""> &nbsp; [phospho-app](https://github.com/phospho-app) / [phospho](https://github.com/phospho-app/phospho)                                   |   384 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/178644984?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sentient-engineering](https://github.com/sentient-engineering) / [agent-q](https://github.com/sentient-engineering/agent-q)        |   370 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/168552753?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sql-agi](https://github.com/sql-agi) / [DB-GPT](https://github.com/sql-agi/DB-GPT)                                                 |   324 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog-foss](https://github.com/PostHog/posthog-foss)                                      |   305 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/154247157?s=40&v=4" width="20" height="20" alt=""> &nbsp; [vespperhq](https://github.com/vespperhq) / [vespper](https://github.com/vespperhq/vespper)                                         |   304 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/185116535?s=40&v=4" width="20" height="20" alt=""> &nbsp; [block](https://github.com/block) / [goose](https://github.com/block/goose)                                                         |   295 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/609489?s=40&v=4" width="20" height="20" alt=""> &nbsp; [aorwall](https://github.com/aorwall) / [moatless-tools](https://github.com/aorwall/moatless-tools)                                    |   291 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/2357342?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dmayboroda](https://github.com/dmayboroda) / [minima](https://github.com/dmayboroda/minima)                                          |   221 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/66303003?s=40&v=4" width="20" height="20" alt=""> &nbsp; [RobotecAI](https://github.com/RobotecAI) / [rai](https://github.com/RobotecAI/rai)                                                  |   172 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/148684274?s=40&v=4" width="20" height="20" alt=""> &nbsp; [i-am-alice](https://github.com/i-am-alice) / [3rd-devs](https://github.com/i-am-alice/3rd-devs)                                    |   148 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/171735272?s=40&v=4" width="20" height="20" alt=""> &nbsp; [8090-inc](https://github.com/8090-inc) / [xrx-sample-apps](https://github.com/8090-inc/xrx-sample-apps)                            |   138 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/104478511?s=40&v=4" width="20" height="20" alt=""> &nbsp; [babelcloud](https://github.com/babelcloud) / [LLM-RGB](https://github.com/babelcloud/LLM-RGB)                                      |   135 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/15125613?s=40&v=4" width="20" height="20" alt=""> &nbsp; [souzatharsis](https://github.com/souzatharsis) / [tamingLLMs](https://github.com/souzatharsis/tamingLLMs)                           |   129 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169401942?s=40&v=4" width="20" height="20" alt=""> &nbsp; [LibreChat-AI](https://github.com/LibreChat-AI) / [librechat.ai](https://github.com/LibreChat-AI/librechat.ai)                      |   128 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/51827949?s=40&v=4" width="20" height="20" alt=""> &nbsp; [deepset-ai](https://github.com/deepset-ai) / [haystack-core-integrations](https://github.com/deepset-ai/haystack-core-integrations) |   126 |
+
+## 🔒 セキュリティとプライバシー
+
+データのセキュリティとプライバシーは非常に重要です。  
+詳細につきましては、[セキュリティとプライバシー](https://langfuse.com/security)ページをご参照ください。
+
+### テレメトリー
+
+デフォルトでは、Langfuseは以下の目的でセルフホストされたインスタンスの基本的な使用統計情報を中央サーバ（PostHog）へ自動的に報告します。
+
+1. Langfuseの利用状況を把握し、最も重要な機能の改善に役立てる
+2. 内部および外部（例：資金調達）のレポートのために全体の利用状況を追跡する
+
+収集されたデータは第三者と共有されず、機微な情報は一切含まれていません。  
+当社はこの点について極力透明性を保っており、収集される具体的なデータの詳細は[こちら](/web/src/features/telemetry/index.ts)で確認できます。
+
+`TELEMETRY_ENABLED=false` を設定することで、テレメトリーの報告をオプトアウトできます.

README.kr.md

@@ -0,0 +1,340 @@
+![Langfuse GitHub Banner](https://langfuse.com/images/docs/github-readme/github-banner.png)
+
+<div align="center">
+   <div>
+      <h3>
+      <a href="https://langfuse.com/kr">
+            <strong>🇰🇷 🤝 🪢</strong>
+         </a> · 
+         <a href="https://cloud.langfuse.com">
+            <strong>Langfuse Cloud</strong>
+         </a> · 
+         <a href="https://langfuse.com/docs/deployment/self-host">
+            <strong>셀프 호스트</strong>
+         </a> · 
+         <a href="https://langfuse.com/demo">
+            <strong>데모</strong>
+         </a>
+      </h3>
+   </div>
+
+   <div>
+      <a href="https://langfuse.com/docs"><strong>문서</strong></a> ·
+      <a href="https://langfuse.com/issues"><strong>버그 신고</strong></a> ·
+      <a href="https://langfuse.com/ideas"><strong>기능 요청</strong></a> ·
+      <a href="https://langfuse.com/changelog"><strong>변경 내역</strong></a> ·
+      <a href="https://langfuse.com/roadmap"><strong>로드맵</strong></a> ·
+   </div>
+   <br/>
+   <span>Langfuse는 지원 및 기능 요청을 위해 <a href="https://github.com/orgs/langfuse/discussions"><strong>GitHub Discussions</strong></a>를 사용합니다.</span>
+   <br/>
+   <span><b>채용 중입니다.</b> <a href="https://langfuse.com/careers"><strong>함께 하세요</strong></a> – 제품 엔지니어링 및 기술 go-to-market 역할의 인재를 찾고 있습니다.</span>
+   <br/>
+   <br/>
+   <div>
+   </div>
+</div>
+
+<p align="center">
+   <a href="https://github.com/langfuse/langfuse/blob/main/LICENSE">
+   <img src="https://img.shields.io/badge/License-MIT-E11311.svg" alt="MIT License">
+   </a>
+   <a href="https://www.ycombinator.com/companies/langfuse"><img src="https://img.shields.io/badge/Y%20Combinator-W23-orange" alt="Y Combinator W23"></a>
+   <a href="https://hub.docker.com/u/langfuse" target="_blank">
+   <img alt="Docker Pulls" src="https://img.shields.io/docker/pulls/langfuse/langfuse?labelColor=%20%23FDB062&logo=Docker&labelColor=%20%23528bff"></a>
+   <a href="https://pypi.python.org/pypi/langfuse"><img src="https://img.shields.io/pypi/dm/langfuse?logo=python&logoColor=white&label=pypi%20langfuse&color=blue" alt="langfuse Python package on PyPi"></a>
+   <a href="https://www.npmjs.com/package/langfuse"><img src="https://img.shields.io/npm/dm/langfuse?logo=npm&logoColor=white&label=npm%20langfuse&color=blue" alt="langfuse npm package"></a>
+   <br/>
+   <a href="https://discord.com/invite/7NXusRtqYU" target="_blank">
+   <img src="https://img.shields.io/discord/1111061815649124414?logo=discord&labelColor=%20%235462eb&logoColor=%20%23f5f5f5&color=%20%235462eb"
+      alt="chat on Discord"></a>
+   <a href="https://twitter.com/intent/follow?screen_name=langfuse" target="_blank">
+   <img src="https://img.shields.io/twitter/follow/langfuse?logo=X&color=%20%23f5f5f5"
+      alt="follow on X(Twitter)"></a>
+   <a href="https://www.linkedin.com/company/langfuse/" target="_blank">
+   <img src="https://custom-icon-badges.demolab.com/badge/LinkedIn-0A66C2?logo=linkedin-white&logoColor=fff"
+      alt="follow on LinkedIn"></a>
+   <a href="https://github.com/langfuse/langfuse/graphs/commit-activity" target="_blank">
+   <img alt="Commits last month" src="https://img.shields.io/github/commit-activity/m/langfuse/langfuse?labelColor=%20%2332b583&color=%20%2312b76a"></a>
+   <a href="https://github.com/langfuse/langfuse/" target="_blank">
+   <img alt="Issues closed" src="https://img.shields.io/github/issues-search?query=repo%3Alangfuse%2Flangfuse%20is%3Aclosed&label=issues%20closed&labelColor=%20%237d89b0&color=%20%235d6b98"></a>
+   <a href="https://github.com/langfuse/langfuse/discussions/" target="_blank">
+   <img alt="Discussion posts" src="https://img.shields.io/github/discussions/langfuse/langfuse?labelColor=%20%239b8afb&color=%20%237a5af8"></a>
+</p>
+
+<p align="center">
+  <a href="./README.md"><img alt="README in English" src="https://img.shields.io/badge/English-d9d9d9"></a>
+  <a href="./README.cn.md"><img alt="简体中文版自述文件" src="https://img.shields.io/badge/简体中文-d9d9d9"></a>
+  <a href="./README.ja.md"><img alt="日本語のREADME" src="https://img.shields.io/badge/日本語-d9d9d9"></a>
+  <a href="./README.kr.md"><img alt="README in Korean" src="https://img.shields.io/badge/한국어-d9d9d9"></a>
+</p>
+
+Langfuse는 **오픈 소스 LLM 엔지니어링** 플랫폼입니다.  
+팀이 협업하여 AI 애플리케이션을 **개발, 모니터링, 평가** 및 **디버그**할 수 있도록 도와줍니다.  
+Langfuse는 몇 분 안에 셀프 호스팅할 수 있으며, 검증된(battle-tested) 솔루션입니다.
+
+[![Langfuse Overview Video](https://github.com/user-attachments/assets/3926b288-ff61-4b95-8aa1-45d041c70866)](https://langfuse.com/watch-demo)
+
+## ✨ 주요 기능
+
+![Langfuse Overview](https://langfuse.com/images/docs/github-readme/github-feature-overview.png)
+
+- **LLM 애플리케이션 관측**  
+  앱에 계측(instrumentation)을 추가하여 Langfuse로 trace 데이터를 수집함으로써, 검색, 임베딩, 또는 에이전트 동작과 같은 LLM 호출 및 기타 관련 로직을 추적할 수 있습니다. 복잡한 로그와 사용자 세션을 확인 및 디버깅 해보세요. 인터랙티브 데모를 통해 실제 작동 예를 확인할 수 있습니다.
+
+- **프롬프트 관리**  
+  프롬프트를 중앙에서 관리하고 버전 관리하며 협업으로 수정할 수 있도록 도와줍니다. 서버와 클라이언트 측의 강력한 캐싱 덕분에 애플리케이션에 지연(latency)을 추가하지 않고도 프롬프트를 반복 개선할 수 있습니다.
+
+- **평가**  
+  LLM 애플리케이션 개발 워크플로우에서 핵심적인 역할을 하며, Langfuse는 여러분의 필요에 맞게 유연하게 대응합니다. LLM을 심사자로 활용하는 기능, 사용자 피드백 수집, 수동 라벨링 및 API/SDK를 통한 맞춤 평가 파이프라인을 지원합니다.
+
+- **데이터셋**  
+  LLM 애플리케이션 평가를 위한 테스트 세트와 벤치마크를 제공하여, 지속적인 개선, 배포 전 테스트, 구조화된 실험, 유연한 평가 및 LangChain과 LlamaIndex와 같은 프레임워크와의 원활한 통합을 지원합니다.
+
+- **LLM 플레이그라운드**  
+  프롬프트와 모델 구성에 대해 테스트 및 반복 개선할 수 있는 도구로, 피드백 루프를 단축하여 개발 속도를 높여줍니다. trace에서 이상한 결과가 발생하면 플레이그라운드로 바로 이동해 개선할 수 있습니다.
+
+- **종합 API**  
+  Langfuse는 API를 통해 제공되는 구성 요소들을 활용하여 맞춤형 LLMOps 워크플로우를 강화하는 데 자주 사용됩니다. OpenAPI 명세, Postman 컬렉션, Python 및 JS/TS용 타입드 SDK가 제공됩니다.
+
+## 📦 Langfuse 배포
+
+![Langfuse Deployment Options](https://langfuse.com/images/docs/github-readme/github-deployment-options.png)
+
+### Langfuse Cloud
+
+Langfuse 팀이 관리하는 배포 방식으로, 후한 무료 플랜(취미 플랜)을 제공하며 신용카드가 필요하지 않습니다.
+
+<div align="center">
+    <a href="https://cloud.langfuse.com" target="_blank">
+        <img alt="Static Badge" src="https://img.shields.io/badge/»%20Sign%20up%20for%20Langfuse%20Cloud-8A2BE2?&color=orange">
+    </a>
+</div>
+
+### Langfuse 셀프 호스트
+
+자체 인프라에서 Langfuse를 실행하세요:
+
+- [로컬 (docker compose)](https://langfuse.com/self-hosting/local): Docker Compose를 사용하여 본인의 컴퓨터에서 5분 안에 Langfuse를 실행할 수 있습니다.
+
+  ```bash
+  # 최신 Langfuse 저장소 클론
+  git clone https://github.com/langfuse/langfuse.git
+  cd langfuse
+
+  # langfuse docker compose 실행
+  docker compose up
+  ```
+
+- [Kubernetes (Helm)](https://langfuse.com/self-hosting/kubernetes-helm): Helm을 사용해 Kubernetes 클러스터에서 Langfuse를 실행합니다. 이는 권장되는 프로덕션 배포 방식입니다.
+- [VM](https://langfuse.com/self-hosting/docker-compose): Docker Compose를 사용해 단일 가상 머신에서 Langfuse를 실행합니다.
+- Terraform 템플릿: [AWS](https://langfuse.com/self-hosting/aws), [Azure](https://langfuse.com/self-hosting/azure), [GCP](https://langfuse.com/self-hosting/gcp)
+
+자세한 내용은 [자체 호스팅 문서](https://langfuse.com/self-hosting)를 참조하세요.
+
+## 🔌 통합 기능
+
+![Langfuse Integrations](https://langfuse.com/images/docs/github-readme/github-integrations.png)
+
+### 주요 통합:
+
+| 통합                                                                 | 지원                   | 설명                                                                                                                                      |
+| --------------------------------------------------------------------- | ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
+| [SDK](https://langfuse.com/docs/sdk)                                  | Python, JS/TS          | SDK를 사용하여 완전한 유연성을 갖춘 수동 계측(manual instrumentation)을 수행합니다.                                                       |
+| [OpenAI](https://langfuse.com/docs/integrations/openai)               | Python, JS/TS          | OpenAI SDK의 드롭인 대체(drop-in replacement)를 통해 자동 계측(automated instrumentation)을 수행합니다.                                       |
+| [Langchain](https://langfuse.com/docs/integrations/langchain)         | Python, JS/TS          | Langchain 애플리케이션에 callback 핸들러를 전달하여 자동 계측합니다.                                                                       |
+| [LlamaIndex](https://langfuse.com/docs/integrations/llama-index/get-started) | Python                 | LlamaIndex 콜백 시스템을 통한 자동 계측을 지원합니다.                                                                                      |
+| [Haystack](https://langfuse.com/docs/integrations/haystack)           | Python                 | Haystack 콘텐츠 추적 시스템을 통한 자동 계측을 지원합니다.                                                                                 |
+| [LiteLLM](https://langfuse.com/docs/integrations/litellm)             | Python, JS/TS (proxy only) | GPT의 드롭인 대체품으로 어떤 LLM도 사용할 수 있습니다. Azure, OpenAI, Cohere, Anthropic, Ollama, VLLM, Sagemaker, HuggingFace, Replicate 등 100개 이상의 LLM 지원. |
+| [Vercel AI SDK](https://langfuse.com/docs/integrations/vercel-ai-sdk)   | JS/TS                  | React, Next.js, Vue, Svelte, Node.js와 함께 AI 기반 애플리케이션 구축을 돕는 TypeScript 툴킷입니다.                                             |
+| [API](https://langfuse.com/docs/api)                                   |                        | 공개 API를 직접 호출합니다. OpenAPI 명세가 제공됩니다.                                                                                      |
+
+### Langfuse와 통합된 패키지:
+
+| 이름                                                                    | 유형               | 설명                                                                                                             |
+| ----------------------------------------------------------------------- | ------------------ | ---------------------------------------------------------------------------------------------------------------- |
+| [Instructor](https://langfuse.com/docs/integrations/instructor)         | 라이브러리         | 구조화된 LLM 출력을(JSON, Pydantic) 얻기 위한 라이브러리입니다.                                                  |
+| [DSPy](https://langfuse.com/docs/integrations/dspy)                     | 라이브러리         | 언어 모델 프롬프트와 가중치를 체계적으로 최적화하는 프레임워크입니다.                                             |
+| [Mirascope](https://langfuse.com/docs/integrations/mirascope)           | 라이브러리         | LLM 애플리케이션 구축을 위한 Python 툴킷입니다.                                                                    |
+| [Ollama](https://langfuse.com/docs/integrations/ollama)                 | 모델 (로컬)        | 자신의 컴퓨터에서 오픈 소스 LLM을 손쉽게 실행할 수 있습니다.                                                      |
+| [Amazon Bedrock](https://langfuse.com/docs/integrations/amazon-bedrock) | 모델               | AWS에서 기본 및 파인튜닝된 모델을 실행합니다.                                                                      |
+| [Google VertexAI and Gemini](https://langfuse.com/docs/integrations/google-vertex-ai) | 모델               | Google에서 기본 및 파인튜닝된 모델을 실행합니다.                                                                      |
+| [AutoGen](https://langfuse.com/docs/integrations/autogen)               | 에이전트 프레임워크 | 분산 에이전트 구축을 위한 오픈 소스 LLM 플랫폼입니다.                                                              |
+| [Flowise](https://langfuse.com/docs/integrations/flowise)               | 채팅/에이전트 UI    | 맞춤형 LLM 플로우를 위한 JS/TS 코드 없는(no-code) 빌더입니다.                                                       |
+| [Langflow](https://langfuse.com/docs/integrations/langflow)             | 채팅/에이전트 UI    | react-flow를 활용하여 실험 및 프로토타이핑을 손쉽게 할 수 있도록 디자인된 LangChain용 Python 기반 UI입니다.          |
+| [Dify](https://langfuse.com/docs/integrations/dify)                     | 채팅/에이전트 UI    | 코드 없는 빌더와 함께 제공되는 오픈 소스 LLM 애플리케이션 개발 플랫폼입니다.                                        |
+| [OpenWebUI](https://langfuse.com/docs/integrations/openwebui)           | 채팅/에이전트 UI    | 셀프 호스팅 및 로컬 모델 등 다양한 LLM 실행기를 지원하는 셀프 호스팅 LLM 채팅 웹 UI입니다.                              |
+| [Promptfoo](https://langfuse.com/docs/integrations/promptfoo)           | 도구               | 오픈 소스 LLM 테스트 플랫폼입니다.                                                                                 |
+| [LobeChat](https://langfuse.com/docs/integrations/lobechat)             | 채팅/에이전트 UI    | 오픈 소스 챗봇 플랫폼입니다.                                                                                         |
+| [Vapi](https://langfuse.com/docs/integrations/vapi)                     | 플랫폼             | 오픈 소스 음성 AI 플랫폼입니다.                                                                                      |
+| [Inferable](https://langfuse.com/docs/integrations/other/inferable)     | 에이전트           | 분산 에이전트 구축을 위한 오픈 소스 LLM 플랫폼입니다.                                                              |
+| [Gradio](https://langfuse.com/docs/integrations/other/gradio)           | 채팅/에이전트 UI    | 채팅 UI와 같은 웹 인터페이스 구축을 위한 오픈 소스 Python 라이브러리입니다.                                         |
+| [Goose](https://langfuse.com/docs/integrations/goose)                   | 에이전트           | 분산 에이전트 구축을 위한 오픈 소스 LLM 플랫폼입니다.                                                              |
+| [smolagents](https://langfuse.com/docs/integrations/smolagents)         | 에이전트           | 오픈 소스 AI 에이전트 프레임워크입니다.                                                                            |
+| [CrewAI](https://langfuse.com/docs/integrations/crewai)                 | 에이전트           | 에이전트 간 협업 및 도구 사용을 위한 다중 에이전트 프레임워크입니다.                                                 |
+
+## 🚀 빠른 시작
+
+앱에 계측을 추가하고 Langfuse에 trace 데이터를 수집하여, LLM 호출 및 검색, 임베딩, 에이전트 동작과 같은 애플리케이션 로직을 추적해보세요. 복잡한 로그와 사용자 세션을 확인하여 디버깅할 수 있습니다.
+
+### 1️⃣ 새 프로젝트 생성
+
+1. [Langfuse 계정 생성](https://cloud.langfuse.com/auth/sign-up) 또는 [셀프 호스트](https://langfuse.com/self-hosting)
+2. 새 프로젝트를 생성합니다.
+3. 프로젝트 설정에서 새로운 API 자격 증명을 생성합니다.
+
+### 2️⃣ 첫 번째 LLM 호출 기록하기
+
+[`@observe()` 데코레이터](https://langfuse.com/docs/sdk/python/decorators)를 사용하면 Python LLM 애플리케이션의 추적이 매우 간편해집니다. 이 빠른 시작 예제에서는 Langfuse [OpenAI 통합](https://langfuse.com/docs/integrations/openai)을 사용하여 모든 모델 파라미터를 자동으로 캡처합니다.
+
+> [!TIP]
+> OpenAI를 사용하지 않으시다면, 다른 모델 및 프레임워크의 로그 기록 방법은 [문서](https://langfuse.com/docs/get-started#log-your-first-llm-call-to-langfuse)를 참조하세요.
+
+```bash
+pip install langfuse openai
+```
+
+```bash filename=".env"
+LANGFUSE_SECRET_KEY="sk-lf-..."
+LANGFUSE_PUBLIC_KEY="pk-lf-..."
+LANGFUSE_HOST="https://cloud.langfuse.com" # 🇪🇺 EU region
+# LANGFUSE_HOST="https://us.cloud.langfuse.com" # 🇺🇸 US region
+```
+
+```python:main.py
+from langfuse import observe
+from langfuse.openai import openai # OpenAI integration
+
+@observe()
+def story():
+    return openai.chat.completions.create(
+        model="gpt-4o",
+        messages=[{"role": "user", "content": "What is Langfuse?"}],
+    ).choices[0].message.content
+
+@observe()
+def main():
+    return story()
+
+main()
+```
+
+### 3️⃣ Langfuse에서 trace 확인하기
+
+Langfuse에서 LLM 호출 및 애플리케이션의 기타 로직에 대한 trace를 확인할 수 있습니다.
+
+![Example trace in Langfuse](https://langfuse.com/images/docs/github-readme/github-example-trace.png)
+
+_[Langfuse의 공개 예제 trace](https://cloud.langfuse.com/project/cloramnkj0002jz088vzn1ja4/traces/2cec01e3-3dc2-472f-afcf-3b968cf0c1f4?timestamp=2025-02-10T14%3A27%3A30.275Z&observation=cb5ff844-07ef-41e6-b8e2-6c64344bc13b)_
+
+> [!TIP]
+>
+> Langfuse의 trace에 대해 더 알아보거나 [인터랙티브 데모](https://langfuse.com/docs/demo)에서 직접 체험해보세요.
+
+## ⭐️ 별을 눌러주세요
+
+![Star Langfuse](https://langfuse.com/images/docs/github-readme/github-star-howto.gif)
+
+## 💭 지원
+
+질문에 대한 답변을 찾는 방법:
+
+- 우리의 [문서](https://langfuse.com/docs)는 답을 찾기 위한 최적의 장소입니다. 문서가 매우 포괄적이며, 유지보수에 많은 노력을 기울이고 있습니다. GitHub를 통해 문서 수정 제안도 가능합니다.
+- [Langfuse FAQ](https://langfuse.com/faq)에서는 가장 흔한 질문에 대해 답변하고 있습니다.
+- 질문에 즉각적인 답변이 필요하다면 [Ask AI](https://langfuse.com/docs/ask-ai)를 사용해보세요.
+
+지원 채널:
+
+- **GitHub Discussions의 [공개 Q&A](https://github.com/orgs/langfuse/discussions/categories/support)** 에 질문을 남겨주세요. 가능한 한 많은 세부 사항(예: 코드 스니펫, 스크린샷, 배경 정보)을 포함해 질문해 주시기 바랍니다.
+- [기능 요청](https://github.com/orgs/langfuse/discussions/categories/ideas)을 남겨주세요.
+- [버그 신고](https://github.com/langfuse/langfuse/issues)는 GitHub Issues를 통해 해주세요.
+- 긴급한 문의는 앱 내 채팅 위젯을 통해 연락 바랍니다.
+
+## 🤝 기여하기
+
+여러분의 기여를 환영합니다!
+
+- GitHub Discussions의 [아이디어](https://github.com/orgs/langfuse/discussions/categories/ideas)에 투표해보세요.
+- GitHub Issues에서 이슈를 제기하고 댓글을 남겨주세요.
+- PR을 제출하세요 – 개발 환경 설정 방법 등 자세한 내용은 [CONTRIBUTING.md](CONTRIBUTING.md)를 참조하세요.
+
+## 🥇 라이선스
+
+이 저장소는 `ee` 폴더를 제외하고 MIT 라이선스가 적용됩니다. 자세한 내용은 [LICENSE](LICENSE)와 [문서](https://langfuse.com/docs/open-source)를 확인하세요.
+
+## ⭐️ 별(Star) 히스토리
+
+<a href="https://star-history.com/#langfuse/langfuse&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" style="border-radius: 15px;" />
+ </picture>
+</a>
+
+## ❤️ Langfuse를 사용하는 오픈 소스 프로젝트
+
+별(star) 수를 기준으로 순위가 매겨진 Langfuse를 사용하는 상위 오픈 소스 Python 프로젝트들 ([출처](https://github.com/langfuse/langfuse-docs/blob/main/components-mdx/dependents)):
+
+| 저장소                                                                                                                                                                                                                                                          | 별   |
+| :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---: |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/127165244?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langgenius](https://github.com/langgenius) / [dify](https://github.com/langgenius/dify)                                            | 54865 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [open-webui](https://github.com/open-webui/open-webui)                                | 51531 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/131470832?s=40&v=4" width="20" height="20" alt=""> &nbsp; [lobehub](https://github.com/lobehub) / [lobe-chat](https://github.com/lobehub/lobe-chat)                                           | 49003 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85702467?s=40&v=4" width="20" height="20" alt=""> &nbsp; [langflow-ai](https://github.com/langflow-ai) / [langflow](https://github.com/langflow-ai/langflow)                                  | 39093 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/130722866?s=40&v=4" width="20" height="20" alt=""> &nbsp; [run-llama](https://github.com/run-llama) / [llama_index](https://github.com/run-llama/llama_index)                                 | 37368 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/139558948?s=40&v=4" width="20" height="20" alt=""> &nbsp; [chatchat-space](https://github.com/chatchat-space) / [Langchain-Chatchat](https://github.com/chatchat-space/Langchain-Chatchat)    | 32486 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/128289781?s=40&v=4" width="20" height="20" alt=""> &nbsp; [FlowiseAI](https://github.com/FlowiseAI) / [Flowise](https://github.com/FlowiseAI/Flowise)                                         | 32448 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/31035808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mindsdb](https://github.com/mindsdb) / [mindsdb](https://github.com/mindsdb/mindsdb)                                                | 26931 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/119600397?s=40&v=4" width="20" height="20" alt=""> &nbsp; [twentyhq](https://github.com/twentyhq) / [twenty](https://github.com/twentyhq/twenty)                                              | 24195 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog](https://github.com/PostHog/posthog)                                                | 22618 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/121462774?s=40&v=4" width="20" height="20" alt=""> &nbsp; [BerriAI](https://github.com/BerriAI) / [litellm](https://github.com/BerriAI/litellm)                                               | 15151 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/179202840?s=40&v=4" width="20" height="20" alt=""> &nbsp; [mediar-ai](https://github.com/mediar-ai) / [screenpipe](https://github.com/mediar-ai/screenpipe)                                   | 11037 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/105877416?s=40&v=4" width="20" height="20" alt=""> &nbsp; [formbricks](https://github.com/formbricks) / [formbricks](https://github.com/formbricks/formbricks)                                |  9386 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/76263028?s=40&v=4" width="20" height="20" alt=""> &nbsp; [anthropics](https://github.com/anthropics) / [courses](https://github.com/anthropics/courses)                                       |  8385 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/78410652?s=40&v=4" width="20" height="20" alt=""> &nbsp; [GreyDGL](https://github.com/GreyDGL) / [PentestGPT](https://github.com/GreyDGL/PentestGPT)                                          |  7374 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/152537519?s=40&v=4" width="20" height="20" alt=""> &nbsp; [superagent-ai](https://github.com/superagent-ai) / [superagent](https://github.com/superagent-ai/superagent)                       |  5391 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/137907881?s=40&v=4" width="20" height="20" alt=""> &nbsp; [promptfoo](https://github.com/promptfoo) / [promptfoo](https://github.com/promptfoo/promptfoo)                                     |  4976 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/157326433?s=40&v=4" width="20" height="20" alt=""> &nbsp; [onlook-dev](https://github.com/onlook-dev) / [onlook](https://github.com/onlook-dev/onlook)                                        |  4141 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/7250217?s=40&v=4" width="20" height="20" alt=""> &nbsp; [Canner](https://github.com/Canner) / [WrenAI](https://github.com/Canner/WrenAI)                                                      |  2526 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/11855343?s=40&v=4" width="20" height="20" alt=""> &nbsp; [pingcap](https://github.com/pingcap) / [autoflow](https://github.com/pingcap/autoflow)                                              |  2061 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/85268109?s=40&v=4" width="20" height="20" alt=""> &nbsp; [MLSysOps](https://github.com/MLSysOps) / [MLE-agent](https://github.com/MLSysOps/MLE-agent)                                         |  1161 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/158137808?s=40&v=4" width="20" height="20" alt=""> &nbsp; [open-webui](https://github.com/open-webui) / [pipelines](https://github.com/open-webui/pipelines)                                  |  1100 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/18422723?s=40&v=4" width="20" height="20" alt=""> &nbsp; [alishobeiri](https://github.com/alishobeiri) / [thread](https://github.com/alishobeiri/thread)                                      |  1074 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/125468716?s=40&v=4" width="20" height="20" alt=""> &nbsp; [topoteretes](https://github.com/topoteretes) / [cognee](https://github.com/topoteretes/cognee)                                     |   971 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/188657705?s=40&v=4" width="20" height="20" alt=""> &nbsp; [bRAGAI](https://github.com/bRAGAI) / [bRAG-langchain](https://github.com/bRAGAI/bRAG-langchain)                                    |   823 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169500408?s=40&v=4" width="20" height="20" alt=""> &nbsp; [opslane](https://github.com/opslane) / [opslane](https://github.com/opslane/opslane)                                               |   677 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/151867818?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dynamiq-ai](https://github.com/dynamiq-ai) / [dynamiq](https://github.com/dynamiq-ai/dynamiq)                                      |   639 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/48585267?s=40&v=4" width="20" height="20" alt=""> &nbsp; [theopenconversationkit](https://github.com/theopenconversationkit) / [tock](https://github.com/theopenconversationkit/tock)         |   514 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/20493493?s=40&v=4" width="20" height="20" alt=""> &nbsp; [andysingal](https://github.com/andysingal) / [llm-course](https://github.com/andysingal/llm-course)                                 |   394 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/132396805?s=40&v=4" width="20" height="20" alt=""> &nbsp; [phospho-app](https://github.com/phospho-app) / [phospho](https://github.com/phospho-app/phospho)                                   |   384 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/178644984?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sentient-engineering](https://github.com/sentient-engineering) / [agent-q](https://github.com/sentient-engineering/agent-q)        |   370 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/168552753?s=40&v=4" width="20" height="20" alt=""> &nbsp; [sql-agi](https://github.com/sql-agi) / [DB-GPT](https://github.com/sql-agi/DB-GPT)                                                 |   324 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/60330232?s=40&v=4" width="20" height="20" alt=""> &nbsp; [PostHog](https://github.com/PostHog) / [posthog-foss](https://github.com/PostHog/posthog-foss)                                      |   305 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/154247157?s=40&v=4" width="20" height="20" alt=""> &nbsp; [vespperhq](https://github.com/vespperhq) / [vespper](https://github.com/vespperhq/vespper)                                         |   304 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/185116535?s=40&v=4" width="20" height="20" alt=""> &nbsp; [block](https://github.com/block) / [goose](https://github.com/block/goose)                                                         |   295 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/609489?s=40&v=4" width="20" height="20" alt=""> &nbsp; [aorwall](https://github.com/aorwall) / [moatless-tools](https://github.com/aorwall/moatless-tools)                                    |   291 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/2357342?s=40&v=4" width="20" height="20" alt=""> &nbsp; [dmayboroda](https://github.com/dmayboroda) / [minima](https://github.com/dmayboroda/minima)                                          |   221 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/66303003?s=40&v=4" width="20" height="20" alt=""> &nbsp; [RobotecAI](https://github.com/RobotecAI) / [rai](https://github.com/RobotecAI/rai)                                                  |   172 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/148684274?s=40&v=4" width="20" height="20" alt=""> &nbsp; [i-am-alice](https://github.com/i-am-alice) / [3rd-devs](https://github.com/i-am-alice/3rd-devs)                                    |   148 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/171735272?s=40&v=4" width="20" height="20" alt=""> &nbsp; [8090-inc](https://github.com/8090-inc) / [xrx-sample-apps](https://github.com/8090-inc/xrx-sample-apps)                            |   138 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/104478511?s=40&v=4" width="20" height="20" alt=""> &nbsp; [babelcloud](https://github.com/babelcloud) / [LLM-RGB](https://github.com/babelcloud/LLM-RGB)                                      |   135 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/15125613?s=40&v=4" width="20" height="20" alt=""> &nbsp; [souzatharsis](https://github.com/souzatharsis) / [tamingLLMs](https://github.com/souzatharsis/tamingLLMs)                           |   129 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169401942?s=40&v=4" width="20" height="20" alt=""> &nbsp; [LibreChat-AI](https://github.com/LibreChat-AI) / [librechat.ai](https://github.com/LibreChat-AI/librechat.ai)                      |   128 |
+| <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/51827949?s=40&v=4" width="20" height="20" alt=""> &nbsp; [deepset-ai](https://github.com/deepset-ai) / [haystack-core-integrations](https://github.com/deepset-ai/haystack-core-integrations) |   126 |
+
+## 🔒 보안 & 개인정보 보호
+
+우리는 데이터 보안과 개인정보 보호를 매우 중요하게 생각합니다. 자세한 내용은 [Security and Privacy](https://langfuse.com/security) 페이지를 참조하세요.
+
+### 텔레메트리
+
+기본적으로 Langfuse는 자체 호스팅 인스턴스의 기본 사용 통계를 중앙 서버(PostHog)로 자동 보고합니다.
+
+이를 통해:
+1. Langfuse가 어떻게 사용되는지 이해하고, 가장 관련성 높은 기능을 개선할 수 있습니다.
+2. 내부 및 외부(예: 자금 조달) 보고를 위한 전체 사용량을 추적할 수 있습니다.
+
+수집된 데이터는 제3자와 공유되지 않으며 민감한 정보를 포함하지 않습니다. 이에 대해 매우 투명하게 공개하고 있으며, 수집되는 정확한 데이터는 [여기](/web/src/features/telemetry/index.ts)에서 확인할 수 있습니다.
+
+환경 변수 `TELEMETRY_ENABLED=false`를 설정하여 옵트아웃할 수 있습니다.

README.md

@@ -1,113 +1,134 @@
-![Langfuse GitHub Banner](https://github.com/langfuse/langfuse/assets/121163007/6035f0f3-d691-4963-b5d0-10cf506e9d42)
-
-<div align="center"><h1>Langfuse: Open Source LLM Engineering Platform</h1></div>
-<div align="center"><h4>LLM Observability, Prompt Management, LLM Evaluations,<br/>Datasets, LLM Metrics, and Prompt Playground</h4></div>
+![Langfuse GitHub Banner](https://langfuse.com/images/docs/github-readme/github-banner.png)
 
 <div align="center">
    <div>
       <h3>
+        <a href="https://langfuse.com/blog/2025-06-04-open-sourcing-langfuse-product">
+            <strong>Langfuse Is Doubling Down On Open Source</strong>
+         </a> <br> <br>
          <a href="https://cloud.langfuse.com">
-            <strong>Sign up</strong>
+            <strong>Langfuse Cloud</strong>
          </a> · 
          <a href="https://langfuse.com/docs/deployment/self-host">
             <strong>Self Host</strong>
          </a> · 
          <a href="https://langfuse.com/demo">
-            <strong>Demo (live data)</strong>
+            <strong>Demo</strong>
          </a>
       </h3>
    </div>
+
    <div>
       <a href="https://langfuse.com/docs"><strong>Docs</strong></a> ·
       <a href="https://langfuse.com/issues"><strong>Report Bug</strong></a> ·
       <a href="https://langfuse.com/ideas"><strong>Feature Request</strong></a> ·
       <a href="https://langfuse.com/changelog"><strong>Changelog</strong></a> ·
       <a href="https://langfuse.com/roadmap"><strong>Roadmap</strong></a> ·
-      <a href="https://langfuse.com/discord"><strong>Discord</strong></a> 
    </div>
-   <span>Langfuse uses <a href="https://github.com/orgs/langfuse/discussions"><strong>Github Discussions</strong></a>  for Support and Feature Requests.</span>
    <br/>
-   <span>We're hiring. <a href="https://langfuse.com/careers"><strong>Join us</strong></a> in Product Engineering and Developer Relations.</span>
+   <span>Langfuse uses <a href="https://github.com/orgs/langfuse/discussions"><strong>GitHub Discussions</strong></a>  for Support and Feature Requests.</span>
+   <br/>
+   <span><b>We're hiring.</b> <a href="https://langfuse.com/careers"><strong>Join us</strong></a> in product engineering and technical go-to-market roles.</span>
    <br/>
    <br/>
    <div>
-      <a href="https://github.com/langfuse/langfuse/blob/main/LICENSE"><img src="https://img.shields.io/badge/License-MIT-red.svg?style=flat-square" alt="MIT License"></a>
-      <a href="https://www.ycombinator.com/companies/langfuse"><img src="https://img.shields.io/badge/Y%20Combinator-W23-orange?style=flat-square" alt="Y Combinator W23"></a>
-      <a href="https://github.com/langfuse/langfuse/pkgs/container/langfuse"><img alt="Docker Image" src="https://img.shields.io/badge/docker-langfuse-blue?logo=Docker&logoColor=white&style=flat-square"></a>
-      <a href="https://pypi.python.org/pypi/langfuse"><img src="https://img.shields.io/pypi/dm/langfuse?style=flat-square&logo=python&logoColor=white&label=pypi%20langfuse&color=blue" alt="langfuse Python package on PyPi"></a>
-      <a href="https://www.npmjs.com/package/langfuse"><img src="https://img.shields.io/npm/dm/langfuse?style=flat-square&logo=npm&logoColor=white&label=npm%20langfuse&color=blue" alt="langfuse npm package"></a>
    </div>
 </div>
-</br>
 
-## Langfuse Overview
+<p align="center">
+   <a href="https://github.com/langfuse/langfuse/blob/main/LICENSE">
+   <img src="https://img.shields.io/badge/License-MIT-E11311.svg" alt="MIT License">
+   </a>
+   <a href="https://www.ycombinator.com/companies/langfuse"><img src="https://img.shields.io/badge/Y%20Combinator-W23-orange" alt="Y Combinator W23"></a>
+   <a href="https://hub.docker.com/u/langfuse" target="_blank">
+   <img alt="Docker Pulls" src="https://img.shields.io/docker/pulls/langfuse/langfuse?labelColor=%20%23FDB062&logo=Docker&labelColor=%20%23528bff"></a>
+   <a href="https://pypi.python.org/pypi/langfuse"><img src="https://img.shields.io/pypi/dm/langfuse?logo=python&logoColor=white&label=pypi%20langfuse&color=blue" alt="langfuse Python package on PyPi"></a>
+   <a href="https://www.npmjs.com/package/langfuse"><img src="https://img.shields.io/npm/dm/langfuse?logo=npm&logoColor=white&label=npm%20langfuse&color=blue" alt="langfuse npm package"></a>
+   <br/>
+   <a href="https://discord.com/invite/7NXusRtqYU" target="_blank">
+   <img src="https://img.shields.io/discord/1111061815649124414?logo=discord&labelColor=%20%235462eb&logoColor=%20%23f5f5f5&color=%20%235462eb"
+      alt="chat on Discord"></a>
+   <a href="https://twitter.com/intent/follow?screen_name=langfuse" target="_blank">
+   <img src="https://img.shields.io/twitter/follow/langfuse?logo=X&color=%20%23f5f5f5"
+      alt="follow on X(Twitter)"></a>
+   <a href="https://www.linkedin.com/company/langfuse/" target="_blank">
+   <img src="https://custom-icon-badges.demolab.com/badge/LinkedIn-0A66C2?logo=linkedin-white&logoColor=fff"
+      alt="follow on LinkedIn"></a>
+   <a href="https://github.com/langfuse/langfuse/graphs/commit-activity" target="_blank">
+   <img alt="Commits last month" src="https://img.shields.io/github/commit-activity/m/langfuse/langfuse?labelColor=%20%2332b583&color=%20%2312b76a"></a>
+   <a href="https://github.com/langfuse/langfuse/" target="_blank">
+   <img alt="Issues closed" src="https://img.shields.io/github/issues-search?query=repo%3Alangfuse%2Flangfuse%20is%3Aclosed&label=issues%20closed&labelColor=%20%237d89b0&color=%20%235d6b98"></a>
+   <a href="https://github.com/langfuse/langfuse/discussions/" target="_blank">
+   <img alt="Discussion posts" src="https://img.shields.io/github/discussions/langfuse/langfuse?labelColor=%20%239b8afb&color=%20%237a5af8"></a>
+</p>
+
+<p align="center">
+  <a href="./README.md"><img alt="README in English" src="https://img.shields.io/badge/English-d9d9d9"></a>
+  <a href="./README.cn.md"><img alt="简体中文版自述文件" src="https://img.shields.io/badge/简体中文-d9d9d9"></a>
+  <a href="./README.ja.md"><img alt="日本語のREADME" src="https://img.shields.io/badge/日本語-d9d9d9"></a>
+  <a href="./README.kr.md"><img alt="README in Korean" src="https://img.shields.io/badge/한국어-d9d9d9"></a>
+</p>
+
+Langfuse is an **open source LLM engineering** platform. It helps teams collaboratively
+**develop, monitor, evaluate,** and **debug** AI applications. Langfuse can be **self-hosted in minutes** and is **battle-tested**.
 
 [![Langfuse Overview Video](https://github.com/user-attachments/assets/3926b288-ff61-4b95-8aa1-45d041c70866)](https://langfuse.com/watch-demo)
 
-### Develop
+## ✨ Core Features
 
-- **LLM Observability:** Instrument your app and start ingesting traces to Langfuse ([Quickstart](https://langfuse.com/docs/get-started), [Integrations](https://langfuse.com/docs/integrations) [Tracing](https://langfuse.com/docs/tracing))
-- **Langfuse UI:** Inspect and debug complex logs ([Demo](https://langfuse.com/docs/demo), [Tracing](https://langfuse.com/docs/tracing))
-- **Prompt Management:** Manage, version and deploy prompts from within Langfuse ([Prompt Management](https://langfuse.com/docs/prompts/get-started))
-- **Prompt Engineering:** Test and iterate on your prompts with the [LLM Playground](https://langfuse.com/docs/playground)
+![Langfuse Overview](https://langfuse.com/images/docs/github-readme/github-feature-overview.png)
 
-### Monitor
+- [LLM Application Observability](https://langfuse.com/docs/tracing): Instrument your app and start ingesting traces to Langfuse, thereby tracking LLM calls and other relevant logic in your app such as retrieval, embedding, or agent actions. Inspect and debug complex logs and user sessions. Try the interactive [demo](https://langfuse.com/docs/demo) to see this in action.
 
-- **LLM Analytics:** Track metrics (cost, latency, quality) and gain insights from dashboards & data exports ([Analytics](https://langfuse.com/docs/analytics))
-- **LLM Evaluations:** Collect and calculate scores for your LLM completions ([Scores & Evaluations](https://langfuse.com/docs/scores))
-  - Run ([Model-based evaluations](https://langfuse.com/docs/scores/model-based-evals)) and LLM-as-a-Judge within Langfuse
-  - Collect user feedback ([User Feedback](https://langfuse.com/docs/scores/user-feedback))
-  - Manually score LLM outputs in Langfuse ([Manual Scores](https://langfuse.com/docs/scores/manually))
+- [Prompt Management](https://langfuse.com/docs/prompts/get-started) helps you centrally manage, version control, and collaboratively iterate on your prompts. Thanks to strong caching on server and client side, you can iterate on prompts without adding latency to your application.
 
-### Test
+- [Evaluations](https://langfuse.com/docs/scores/overview) are key to the LLM application development workflow, and Langfuse adapts to your needs. It supports LLM-as-a-judge, user feedback collection, manual labeling, and custom evaluation pipelines via APIs/SDKs.
 
-- **Experiments:** Track and test app behaviour before deploying a new version
-  - Datasets let you test expected in and output pairs and benchmark performance before deploying ([Datasets](https://langfuse.com/docs/datasets))
-  - Track versions and releases in your application ([Experimentation](https://langfuse.com/docs/experimentation), [Prompt Management](https://langfuse.com/docs/prompts))
+- [Datasets](https://langfuse.com/docs/datasets/overview) enable test sets and benchmarks for evaluating your LLM application. They support continuous improvement, pre-deployment testing, structured experiments, flexible evaluation, and seamless integration with frameworks like LangChain and LlamaIndex.
 
-## Get started
+- [LLM Playground](https://langfuse.com/docs/playground) is a tool for testing and iterating on your prompts and model configurations, shortening the feedback loop and accelerating development. When you see a bad result in tracing, you can directly jump to the playground to iterate on it.
+
+- [Comprehensive API](https://langfuse.com/docs/api): Langfuse is frequently used to power bespoke LLMOps workflows while using the building blocks provided by Langfuse via the API. OpenAPI spec, Postman collection, and typed SDKs for Python, JS/TS are available.
+
+## 📦 Deploy Langfuse
+
+![Langfuse Deployment Options](https://langfuse.com/images/docs/github-readme/github-deployment-options.png)
 
 ### Langfuse Cloud
 
-Managed deployment by the Langfuse team, generous free-tier (hobby plan), no credit card required.
+Managed deployment by the Langfuse team, generous free-tier, no credit card required.
 
-**[» Langfuse Cloud](https://cloud.langfuse.com)**
+<div align="center">
+    <a href="https://cloud.langfuse.com" target="_blank">
+        <img alt="Static Badge" src="https://img.shields.io/badge/»%20Sign%20up%20for%20Langfuse%20Cloud-8A2BE2?&color=orange">
+    </a>
+</div>
 
-## Self-Hosting Open Source LLM Observability with Langfuse
+### Self-Host Langfuse
 
-### Localhost (docker)
+Run Langfuse on your own infrastructure:
 
-```bash
-# Clone repository
-git clone https://github.com/langfuse/langfuse.git
-cd langfuse
+- [Local (docker compose)](https://langfuse.com/self-hosting/local): Run Langfuse on your own machine in 5 minutes using Docker Compose.
 
-# Run server and database
-docker compose up -d
-```
+  ```bash
+  # Get a copy of the latest Langfuse repository
+  git clone https://github.com/langfuse/langfuse.git
+  cd langfuse
 
-[→ Learn more about deploying locally](https://langfuse.com/docs/deployment/local)
+  # Run the langfuse docker compose
+  docker compose up
+  ```
+- [VM](https://langfuse.com/self-hosting/docker-compose): Run Langfuse on a single Virtual Machine using Docker Compose.
+- [Kubernetes (Helm)](https://langfuse.com/self-hosting/kubernetes-helm): Run Langfuse on a Kubernetes cluster using Helm. This is the preferred production deployment.
+- Terraform Templates: [AWS](https://langfuse.com/self-hosting/aws), [Azure](https://langfuse.com/self-hosting/azure), [GCP](https://langfuse.com/self-hosting/gcp)
 
-### Self-host (docker)
+See [self-hosting documentation](https://langfuse.com/self-hosting) to learn more about architecture and configuration options.
 
-Langfuse is simple to self-host and keep updated. It currently requires only a single docker container and a postgres database.
-[→ Self Hosting Instructions](https://langfuse.com/docs/deployment/self-host)
+## 🔌 Integrations
 
-Templated deployments: [Railway, GCP, AWS, Azure, Kubernetes and others](https://langfuse.com/docs/deployment/self-host#platform-specific-information)
+![Langfuse Integrations](https://langfuse.com/images/docs/github-readme/github-integrations.png)
 
-## Get Started
-
-### API Keys
-
-You need a Langfuse public and secret key to get started. Sign up [here](https://cloud.langfuse.com) and find them in your project settings.
-
-### Ingesting Data · Instrumenting Your Application · LLM Observability with Langfuse
-
-Note: We recommend using our fully async, typed [SDKs](https://langfuse.com/docs/sdk) that allow you to instrument any LLM application with any underlying model. They are available in [Python (Decorators)](https://langfuse.com/docs/sdk/python) & [JS/TS](https://langfuse.com/docs/sdk/typescript). The SDKs will always be the most fully featured and stable way to ingest data into Langfuse.
-
-See the [→ Quickstart](https://langfuse.com/docs/get-started) to integrate Langfuse.
-
-### LLM Observability Integrations
+### Main Integrations:
 
 | Integration                                                                  | Supports                   | Description                                                                                                                                      |
 | ---------------------------------------------------------------------------- | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
@@ -120,77 +141,129 @@ See the [→ Quickstart](https://langfuse.com/docs/get-started) to integrate Lan
 | [Vercel AI SDK](https://langfuse.com/docs/integrations/vercel-ai-sdk)        | JS/TS                      | TypeScript toolkit designed to help developers build AI-powered applications with React, Next.js, Vue, Svelte, Node.js.                          |
 | [API](https://langfuse.com/docs/api)                                         |                            | Directly call the public API. OpenAPI spec available.                                                                                            |
 
-Packages integrated with Langfuse:
+### Packages integrated with Langfuse:
 
-| Name                                                            | Description                                                                                                             |
-| --------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
-| [Instructor](https://langfuse.com/docs/integrations/instructor) | Library to get structured LLM outputs (JSON, Pydantic)                                                                  |
-| [Dify](https://langfuse.com/docs/integrations/dify)             | Open source LLM app development platform with no-code builder.                                                          |
-| [Ollama](https://langfuse.com/docs/integrations/ollama)         | Easily run open source LLMs on your own machine.                                                                        |
-| [Mirascope](https://langfuse.com/docs/integrations/mirascope)   | Python toolkit for building LLM applications.                                                                           |
-| [Flowise](https://langfuse.com/docs/integrations/flowise)       | JS/TS no-code builder for customized LLM flows.                                                                         |
-| [Langflow](https://langfuse.com/docs/integrations/langflow)     | Python-based UI for LangChain, designed with react-flow to provide an effortless way to experiment and prototype flows. |
+| Name                                                                    | Type               | Description                                                                                                             |
+| ----------------------------------------------------------------------- | ------------------ | ----------------------------------------------------------------------------------------------------------------------- |
+| [Instructor](https://langfuse.com/docs/integrations/instructor)         | Library            | Library to get structured LLM outputs (JSON, Pydantic)                                                                  |
+| [DSPy](https://langfuse.com/docs/integrations/dspy)                     | Library            | Framework that systematically optimizes language model prompts and weights                                              |
+| [Mirascope](https://langfuse.com/docs/integrations/mirascope)           | Library            | Python toolkit for building LLM applications.                                                                           |
+| [Ollama](https://langfuse.com/docs/integrations/ollama)                 | Model (local)      | Easily run open source LLMs on your own machine.                                                                        |
+| [Amazon Bedrock](https://langfuse.com/docs/integrations/amazon-bedrock) | Model              | Run foundation and fine-tuned models on AWS.                                                                            |
+| [AutoGen](https://langfuse.com/docs/integrations/autogen)               | Agent Framework    | Open source LLM platform for building distributed agents.                                                               |
+| [Flowise](https://langfuse.com/docs/integrations/flowise)               | Chat/Agent&nbsp;UI | JS/TS no-code builder for customized LLM flows.                                                                         |
+| [Langflow](https://langfuse.com/docs/integrations/langflow)             | Chat/Agent&nbsp;UI | Python-based UI for LangChain, designed with react-flow to provide an effortless way to experiment and prototype flows. |
+| [Dify](https://langfuse.com/docs/integrations/dify)                     | Chat/Agent&nbsp;UI | Open source LLM app development platform with no-code builder.                                                          |
+| [OpenWebUI](https://langfuse.com/docs/integrations/openwebui)           | Chat/Agent&nbsp;UI | Self-hosted LLM Chat web ui supporting various LLM runners including self-hosted and local models.                      |
+| [Promptfoo](https://langfuse.com/docs/integrations/promptfoo)           | Tool               | Open source LLM testing platform.                                                                                       |
+| [LobeChat](https://langfuse.com/docs/integrations/lobechat)             | Chat/Agent&nbsp;UI | Open source chatbot platform.                                                                                           |
+| [Vapi](https://langfuse.com/docs/integrations/vapi)                     | Platform           | Open source voice AI platform.                                                                                          |
+| [Inferable](https://langfuse.com/docs/integrations/other/inferable)     | Agents             | Open source LLM platform for building distributed agents.                                                               |
+| [Gradio](https://langfuse.com/docs/integrations/other/gradio)           | Chat/Agent&nbsp;UI | Open source Python library to build web interfaces like Chat UI.                                                        |
+| [Goose](https://langfuse.com/docs/integrations/goose)                   | Agents             | Open source LLM platform for building distributed agents.                                                               |
+| [smolagents](https://langfuse.com/docs/integrations/smolagents)         | Agents             | Open source AI agents framework.                                                                                        |
+| [CrewAI](https://langfuse.com/docs/integrations/crewai)                 | Agents             | Multi agent framework for agent collaboration and tool use.                                                             |
 
-## Questions and feedback
+## 🚀 Quickstart
 
-### Ideas and roadmap
+Instrument your app and start ingesting traces to Langfuse, thereby tracking LLM calls and other relevant logic in your app such as retrieval, embedding, or agent actions. Inspect and debug complex logs and user sessions.
 
-- [Roadmap](https://langfuse.com/roadmap)
-- [GitHub Discussions](https://github.com/orgs/langfuse/discussions)
-- [Feature Requests](https://langfuse.com/ideas)
+### 1️⃣ Create new project
 
-### Support and feedback
+1.  [Create Langfuse account](https://cloud.langfuse.com/auth/sign-up) or [self-host](https://langfuse.com/self-hosting)
+2.  Create a new project
+3.  Create new API credentials in the project settings
 
-In order of preference the best way to communicate with us:
+### 2️⃣ Log your first LLM call
 
-- [GitHub Discussions](https://github.com/orgs/langfuse/discussions) (preferred): Contribute [ideas](https://langfuse.com/ideas), [support requests](https://langfuse.com/gh-support) and [report bugs](https://langfuse.com/issues)
-- [Discord](https://langfuse.com/discord): community support
-- Privately: contact at langfuse dot com
+The [`@observe()` decorator](https://langfuse.com/docs/sdk/python/decorators) makes it easy to trace any Python LLM application. In this quickstart we also use the Langfuse [OpenAI integration](https://langfuse.com/docs/integrations/openai) to automatically capture all model parameters.
 
-## Contributing to Langfuse
+> [!TIP]
+> Not using OpenAI? Visit [our documentation](https://langfuse.com/docs/get-started#log-your-first-llm-call-to-langfuse) to learn how to log other models and frameworks.
 
-- Vote on [Ideas](https://github.com/orgs/langfuse/discussions/categories/ideas)
-- Raise and comment on [Issues](https://github.com/langfuse/langfuse/issues)
+```bash
+pip install langfuse openai
+```
+
+```bash filename=".env"
+LANGFUSE_SECRET_KEY="sk-lf-..."
+LANGFUSE_PUBLIC_KEY="pk-lf-..."
+LANGFUSE_HOST="https://cloud.langfuse.com" # 🇪🇺 EU region
+# LANGFUSE_HOST="https://us.cloud.langfuse.com" # 🇺🇸 US region
+```
+
+```python /@observe()/ /from langfuse.openai import openai/ filename="main.py"
+from langfuse import observe
+from langfuse.openai import openai # OpenAI integration
+
+@observe()
+def story():
+    return openai.chat.completions.create(
+        model="gpt-4o",
+        messages=[{"role": "user", "content": "What is Langfuse?"}],
+    ).choices[0].message.content
+
+@observe()
+def main():
+    return story()
+
+main()
+```
+
+### 3️⃣ See traces in Langfuse
+
+See your language model calls and other application logic in Langfuse.
+
+![Example trace in Langfuse](https://langfuse.com/images/docs/github-readme/github-example-trace.png)
+
+_[Public example trace in Langfuse](https://cloud.langfuse.com/project/cloramnkj0002jz088vzn1ja4/traces/2cec01e3-3dc2-472f-afcf-3b968cf0c1f4?timestamp=2025-02-10T14%3A27%3A30.275Z&observation=cb5ff844-07ef-41e6-b8e2-6c64344bc13b)_
+
+> [!TIP]
+>
+> [Learn more](https://langfuse.com/docs/tracing) about tracing in Langfuse or play with the [interactive demo](https://langfuse.com/docs/demo).
+
+## ⭐️ Star Us
+
+![star-langfuse-on-github](https://github.com/user-attachments/assets/79a1d816-d229-4526-aecc-097d4a19f1ad)
+
+## 💭 Support
+
+Finding an answer to your question:
+
+- Our [documentation](https://langfuse.com/docs) is the best place to start looking for answers. It is comprehensive, and we invest significant time into maintaining it. You can also suggest edits to the docs via GitHub.
+- [Langfuse FAQs](https://langfuse.com/faq) where the most common questions are answered.
+- Use "[Ask AI](https://langfuse.com/docs/ask-ai)" to get instant answers to your questions.
+
+Support Channels:
+
+- **Ask any question in our [public Q&A](https://github.com/orgs/langfuse/discussions/categories/support) on GitHub Discussions.** Please include as much detail as possible (e.g. code snippets, screenshots, background information) to help us understand your question.
+- [Request a feature](https://github.com/orgs/langfuse/discussions/categories/ideas) on GitHub Discussions.
+- [Report a Bug](https://github.com/langfuse/langfuse/issues) on GitHub Issues.
+- For time-sensitive queries, ping us via the in-app chat widget.
+
+## 🤝 Contributing
+
+Your contributions are welcome!
+
+- Vote on [Ideas](https://github.com/orgs/langfuse/discussions/categories/ideas) in GitHub Discussions.
+- Raise and comment on [Issues](https://github.com/langfuse/langfuse/issues).
 - Open a PR - see [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to setup a development environment.
 
-## License
+## 🥇 License
 
 This repository is MIT licensed, except for the `ee` folders. See [LICENSE](LICENSE) and [docs](https://langfuse.com/docs/open-source) for more details.
 
-## Misc
-
-### GET API to export your data
-
-[**GET routes**](https://langfuse.com/docs/integrations/api) to use data in downstream applications (e.g. embedded analytics). You can also access them conveniently via the SDKs ([docs](https://langfuse.com/docs/query-traces)).
-
-### Security & Privacy
-
-We take data security and privacy seriously. Please refer to our [Security and Privacy](https://langfuse.com/security) page for more information.
-
-### Telemetry
-
-By default, Langfuse automatically reports basic usage statistics of self-hosted instances to a centralized server (PostHog).
-
-This helps us to:
-
-1. Understand how Langfuse is used and improve the most relevant features.
-2. Track overall usage for internal and external (e.g. fundraising) reporting.
-
-None of the data is shared with third parties and does not include any sensitive information. We want to be super transparent about this and you can find the exact data we collect [here](/web/src/features/telemetry/index.ts).
-
-You can opt-out by setting `TELEMETRY_ENABLED=false`.
-
-### Star History
+## ⭐️ Star History
 
 <a href="https://star-history.com/#langfuse/langfuse&Date">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date&theme=dark" />
    <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" />
-   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=langfuse/langfuse&type=Date" style="border-radius: 15px;" />
  </picture>
 </a>
 
-### Open Source Projects Using Langfuse
+## ❤️ Open Source Projects Using Langfuse
 
 Top open-source Python projects that use Langfuse, ranked by stars ([Source](https://github.com/langfuse/langfuse-docs/blob/main/components-mdx/dependents)):
 
@@ -240,3 +313,20 @@ Top open-source Python projects that use Langfuse, ranked by stars ([Source](htt
 | <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/15125613?s=40&v=4" width="20" height="20" alt=""> &nbsp; [souzatharsis](https://github.com/souzatharsis) / [tamingLLMs](https://github.com/souzatharsis/tamingLLMs)                           |   129 |
 | <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/169401942?s=40&v=4" width="20" height="20" alt=""> &nbsp; [LibreChat-AI](https://github.com/LibreChat-AI) / [librechat.ai](https://github.com/LibreChat-AI/librechat.ai)                      |   128 |
 | <img class="avatar mr-2" src="https://avatars.githubusercontent.com/u/51827949?s=40&v=4" width="20" height="20" alt=""> &nbsp; [deepset-ai](https://github.com/deepset-ai) / [haystack-core-integrations](https://github.com/deepset-ai/haystack-core-integrations) |   126 |
+
+## 🔒 Security & Privacy
+
+We take data security and privacy seriously. Please refer to our [Security and Privacy](https://langfuse.com/security) page for more information.
+
+### Telemetry
+
+By default, Langfuse automatically reports basic usage statistics of self-hosted instances to a centralized server (PostHog).
+
+This helps us to:
+
+1. Understand how Langfuse is used and improve the most relevant features.
+2. Track overall usage for internal and external (e.g. fundraising) reporting.
+
+None of the data is shared with third parties and does not include any sensitive information. We want to be super transparent about this and you can find the exact data we collect [here](/web/src/features/telemetry/index.ts).
+
+You can opt-out by setting `TELEMETRY_ENABLED=false`.

careers

@@ -1,13 +0,0 @@
-_We are Hiring_
-Join us in scaling Langfuse in Berlin, Germany. We are an open source company, we hire in person, we are only hiring technical talent.
-
-_Open Roles_
-
-- Product Engineer, 70-130k EUR, 0.25-0.75% Equity, https://www.ycombinator.com/companies/langfuse/jobs/aAvmoFB-product-engineer
-- Developer Advocate, 60-110k EUR, 0.25-0.5% Equity, https://www.ycombinator.com/companies/langfuse/jobs/uHysbKH-developer-advocate-devrel
-
-_More Info_
-
-- https://langfuse.com/careers
-- https://langfuse.com/docs
-- https://langfuse.com/changelog

docker-compose.build.yml

@@ -48,6 +48,10 @@ services:
       REDIS_HOST: ${REDIS_HOST:-redis}
       REDIS_PORT: ${REDIS_PORT:-6379}
       REDIS_AUTH: ${REDIS_AUTH:-myredissecret}
+      REDIS_TLS_ENABLED: ${REDIS_TLS_ENABLED:-false}
+      REDIS_TLS_CA: ${REDIS_TLS_CA:-/certs/ca.crt}
+      REDIS_TLS_CERT: ${REDIS_TLS_CERT:-/certs/redis.crt}
+      REDIS_TLS_KEY: ${REDIS_TLS_KEY:-/certs/redis.key}
     restart: always
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:3000/api/public/health"]
@@ -74,10 +78,8 @@ services:
       retries: 3
 
   clickhouse:
-    image: clickhouse/clickhouse-server
+    image: docker.io/clickhouse/clickhouse-server
     user: "101:101"
-    container_name: clickhouse
-    hostname: clickhouse
     environment:
       CLICKHOUSE_DB: default
       CLICKHOUSE_USER: clickhouse
@@ -96,8 +98,7 @@ services:
       start_period: 1s
 
   minio:
-    image: minio/minio
-    container_name: minio
+    image: docker.io/minio/minio
     entrypoint: sh
     # create the 'langfuse' bucket before starting the service
     command: -c 'mkdir -p /data/langfuse && minio server --address ":9000" --console-address ":9001" /data'
@@ -117,7 +118,7 @@ services:
       start_period: 1s
 
   redis:
-    image: redis:7
+    image: docker.io/redis:7
     restart: always
     command: >
       --requirepass ${REDIS_AUTH:-myredissecret}
@@ -130,7 +131,7 @@ services:
       retries: 10
 
   postgres:
-    image: postgres:${POSTGRES_VERSION:-latest}
+    image: docker.io/postgres:${POSTGRES_VERSION:-latest}
     restart: always
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]

docker-compose.dev-azure.yml

@@ -1,9 +1,7 @@
 services:
   clickhouse:
-    image: clickhouse/clickhouse-server
+    image: docker.io/clickhouse/clickhouse-server:24.3
     user: "101:101"
-    container_name: clickhouse
-    hostname: clickhouse
     environment:
       CLICKHOUSE_DB: default
       CLICKHOUSE_USER: clickhouse
@@ -19,7 +17,6 @@ services:
 
   azurite:
     image: mcr.microsoft.com/azure-storage/azurite
-    container_name: azurite
     command: azurite-blob --blobHost 0.0.0.0
     ports:
       - "10000:10000"
@@ -27,7 +24,7 @@ services:
       - langfuse_azurite_data:/data
 
   redis:
-    image: redis:7.2.4
+    image: docker.io/redis:7.2.4
     restart: always
     command: >
       --requirepass ${REDIS_AUTH:-myredissecret}
@@ -35,7 +32,7 @@ services:
       - 6379:6379
 
   postgres:
-    image: postgres:${POSTGRES_VERSION:-latest}
+    image: docker.io/postgres:${POSTGRES_VERSION:-latest}
     restart: always
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]

docker-compose.dev-redis-cluster.yml

@@ -0,0 +1,146 @@
+services:
+  clickhouse:
+    image: docker.io/clickhouse/clickhouse-server:24.3
+    user: "101:101"
+    environment:
+      CLICKHOUSE_DB: default
+      CLICKHOUSE_USER: clickhouse
+      CLICKHOUSE_PASSWORD: clickhouse
+    volumes:
+      - langfuse_clickhouse_data:/var/lib/clickhouse
+      - langfuse_clickhouse_logs:/var/log/clickhouse-server
+    ports:
+      - 127.0.0.1:8123:8123
+      - 127.0.0.1:9000:9000
+    depends_on:
+      - postgres
+
+  minio:
+    image: docker.io/minio/minio
+    entrypoint: sh
+    # create the 'langfuse' bucket before starting the service
+    command: -c 'mkdir -p /data/langfuse && minio server --address ":9000" --console-address ":9001" /data'
+    environment:
+      MINIO_ACCESS_KEY: minio
+      MINIO_SECRET_KEY: miniosecret
+    ports:
+      - 127.0.0.1:9090:9000
+      - 127.0.0.1:9091:9001
+    volumes:
+      - langfuse_minio_data:/data
+    healthcheck:
+      test: ["CMD", "mc", "ready", "local"]
+      interval: 1s
+      timeout: 5s
+      retries: 5
+      start_period: 1s
+
+  postgres:
+    image: docker.io/postgres:${POSTGRES_VERSION:-latest}
+    restart: always
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 3s
+      timeout: 3s
+      retries: 10
+    command: ["postgres", "-c", "log_statement=all"]
+    environment:
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=postgres
+      - POSTGRES_DB=postgres
+    ports:
+      - 127.0.0.1:5432:5432
+    volumes:
+      - langfuse_postgres_data:/var/lib/postgresql/data
+
+  # Redis Cluster. Requires a Unix host to work for network_mode: host. I.e. tests will fail on windows and mac with this setup.
+  redis-node-0:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-0:/bitnami/redis/data
+    environment:
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6370
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+
+  redis-node-1:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-1:/bitnami/redis/data
+    environment:
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6371
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+
+  redis-node-2:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-2:/bitnami/redis/data
+    environment:
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6372
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+
+  redis-node-3:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-3:/bitnami/redis/data
+    environment:
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6373
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+
+  redis-node-4:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-4:/bitnami/redis/data
+    environment:
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6374
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+
+  redis-node-5:
+    image: docker.io/bitnami/redis-cluster:8.0
+    network_mode: host
+    volumes:
+      - redis-cluster_data-5:/bitnami/redis/data
+    depends_on:
+      - redis-node-0
+      - redis-node-1
+      - redis-node-2
+      - redis-node-3
+      - redis-node-4
+    environment:
+      REDISCLI_AUTH: bitnami
+      REDIS_CLUSTER_REPLICAS: 1
+      REDIS_PASSWORD: bitnami
+      REDIS_PORT_NUMBER: 6375
+      REDIS_NODES: 127.0.0.1:6370 127.0.0.1:6371 127.0.0.1:6372 127.0.0.1:6373 127.0.0.1:6374 127.0.0.1:6375
+      REDIS_CLUSTER_CREATOR: yes
+
+volumes:
+  langfuse_postgres_data:
+    driver: local
+  langfuse_clickhouse_data:
+    driver: local
+  langfuse_clickhouse_logs:
+    driver: local
+  langfuse_minio_data:
+    driver: local
+  redis-cluster_data-0:
+    driver: local
+  redis-cluster_data-1:
+    driver: local
+  redis-cluster_data-2:
+    driver: local
+  redis-cluster_data-3:
+    driver: local
+  redis-cluster_data-4:
+    driver: local
+  redis-cluster_data-5:
+    driver: local

docker-compose.dev.yml

@@ -1,9 +1,7 @@
 services:
   clickhouse:
-    image: clickhouse/clickhouse-server
+    image: docker.io/clickhouse/clickhouse-server:24.3
     user: "101:101"
-    container_name: clickhouse
-    hostname: clickhouse
     environment:
       CLICKHOUSE_DB: default
       CLICKHOUSE_USER: clickhouse
@@ -12,14 +10,13 @@ services:
       - langfuse_clickhouse_data:/var/lib/clickhouse
       - langfuse_clickhouse_logs:/var/log/clickhouse-server
     ports:
-      - "8123:8123"
-      - "9000:9000"
+      - 127.0.0.1:8123:8123
+      - 127.0.0.1:9000:9000
     depends_on:
       - postgres
 
   minio:
-    image: minio/minio
-    container_name: minio
+    image: docker.io/minio/minio
     entrypoint: sh
     # create the 'langfuse' bucket before starting the service
     command: -c 'mkdir -p /data/langfuse && minio server --address ":9000" --console-address ":9001" /data'
@@ -27,8 +24,8 @@ services:
       MINIO_ACCESS_KEY: minio
       MINIO_SECRET_KEY: miniosecret
     ports:
-      - "9090:9000"
-      - "9091:9001"
+      - 127.0.0.1:9090:9000
+      - 127.0.0.1:9091:9001
     volumes:
       - langfuse_minio_data:/data
     healthcheck:
@@ -39,15 +36,15 @@ services:
       start_period: 1s
 
   redis:
-    image: redis:7.2.4
+    image: docker.io/redis:7.2.4
     restart: always
     command: >
       --requirepass ${REDIS_AUTH:-myredissecret}
     ports:
-      - 6379:6379
+      - 127.0.0.1:6379:6379
 
   postgres:
-    image: postgres:${POSTGRES_VERSION:-latest}
+    image: docker.io/postgres:${POSTGRES_VERSION:-latest}
     restart: always
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]
@@ -60,7 +57,7 @@ services:
       - POSTGRES_PASSWORD=postgres
       - POSTGRES_DB=postgres
     ports:
-      - 5432:5432
+      - 127.0.0.1:5432:5432
     volumes:
       - langfuse_postgres_data:/var/lib/postgresql/data
 

docker-compose.yml

@@ -1,6 +1,11 @@
+# Make sure to update the credential placeholders with your own secrets.
+# We mark them with # CHANGEME in the file below.
+# In addition, we recommend to restrict inbound traffic on the host to langfuse-web (port 3000) and minio (port 9090) only.
+# All other components are bound to localhost (127.0.0.1) to only accept connections from the local machine.
+# External connections from other machines will not be able to reach these services directly.
 services:
   langfuse-worker:
-    image: langfuse/langfuse-worker:3
+    image: docker.io/langfuse/langfuse-worker:3
     restart: always
     depends_on: &langfuse-depends-on
       postgres:
@@ -12,48 +17,64 @@ services:
       clickhouse:
         condition: service_healthy
     ports:
-      - "3030:3030"
+      - 127.0.0.1:3030:3030
     environment: &langfuse-worker-env
-      DATABASE_URL: postgresql://postgres:postgres@postgres:5432/postgres
-      SALT: "mysalt"
-      ENCRYPTION_KEY: "0000000000000000000000000000000000000000000000000000000000000000" # generate via `openssl rand -hex 32`
+      NEXTAUTH_URL: http://localhost:3000
+      DATABASE_URL: postgresql://postgres:postgres@postgres:5432/postgres # CHANGEME
+      SALT: "mysalt" # CHANGEME
+      ENCRYPTION_KEY: "0000000000000000000000000000000000000000000000000000000000000000" # CHANGEME: generate via `openssl rand -hex 32`
       TELEMETRY_ENABLED: ${TELEMETRY_ENABLED:-true}
       LANGFUSE_ENABLE_EXPERIMENTAL_FEATURES: ${LANGFUSE_ENABLE_EXPERIMENTAL_FEATURES:-true}
       CLICKHOUSE_MIGRATION_URL: ${CLICKHOUSE_MIGRATION_URL:-clickhouse://clickhouse:9000}
       CLICKHOUSE_URL: ${CLICKHOUSE_URL:-http://clickhouse:8123}
       CLICKHOUSE_USER: ${CLICKHOUSE_USER:-clickhouse}
-      CLICKHOUSE_PASSWORD: ${CLICKHOUSE_PASSWORD:-clickhouse}
+      CLICKHOUSE_PASSWORD: ${CLICKHOUSE_PASSWORD:-clickhouse} # CHANGEME
       CLICKHOUSE_CLUSTER_ENABLED: ${CLICKHOUSE_CLUSTER_ENABLED:-false}
+      LANGFUSE_USE_AZURE_BLOB: ${LANGFUSE_USE_AZURE_BLOB:-false}
       LANGFUSE_S3_EVENT_UPLOAD_BUCKET: ${LANGFUSE_S3_EVENT_UPLOAD_BUCKET:-langfuse}
       LANGFUSE_S3_EVENT_UPLOAD_REGION: ${LANGFUSE_S3_EVENT_UPLOAD_REGION:-auto}
       LANGFUSE_S3_EVENT_UPLOAD_ACCESS_KEY_ID: ${LANGFUSE_S3_EVENT_UPLOAD_ACCESS_KEY_ID:-minio}
-      LANGFUSE_S3_EVENT_UPLOAD_SECRET_ACCESS_KEY: ${LANGFUSE_S3_EVENT_UPLOAD_SECRET_ACCESS_KEY:-miniosecret}
+      LANGFUSE_S3_EVENT_UPLOAD_SECRET_ACCESS_KEY: ${LANGFUSE_S3_EVENT_UPLOAD_SECRET_ACCESS_KEY:-miniosecret} # CHANGEME
       LANGFUSE_S3_EVENT_UPLOAD_ENDPOINT: ${LANGFUSE_S3_EVENT_UPLOAD_ENDPOINT:-http://minio:9000}
       LANGFUSE_S3_EVENT_UPLOAD_FORCE_PATH_STYLE: ${LANGFUSE_S3_EVENT_UPLOAD_FORCE_PATH_STYLE:-true}
       LANGFUSE_S3_EVENT_UPLOAD_PREFIX: ${LANGFUSE_S3_EVENT_UPLOAD_PREFIX:-events/}
       LANGFUSE_S3_MEDIA_UPLOAD_BUCKET: ${LANGFUSE_S3_MEDIA_UPLOAD_BUCKET:-langfuse}
       LANGFUSE_S3_MEDIA_UPLOAD_REGION: ${LANGFUSE_S3_MEDIA_UPLOAD_REGION:-auto}
       LANGFUSE_S3_MEDIA_UPLOAD_ACCESS_KEY_ID: ${LANGFUSE_S3_MEDIA_UPLOAD_ACCESS_KEY_ID:-minio}
-      LANGFUSE_S3_MEDIA_UPLOAD_SECRET_ACCESS_KEY: ${LANGFUSE_S3_MEDIA_UPLOAD_SECRET_ACCESS_KEY:-miniosecret}
-      LANGFUSE_S3_MEDIA_UPLOAD_ENDPOINT: ${LANGFUSE_S3_MEDIA_UPLOAD_ENDPOINT:-http://minio:9000}
+      LANGFUSE_S3_MEDIA_UPLOAD_SECRET_ACCESS_KEY: ${LANGFUSE_S3_MEDIA_UPLOAD_SECRET_ACCESS_KEY:-miniosecret} # CHANGEME
+      LANGFUSE_S3_MEDIA_UPLOAD_ENDPOINT: ${LANGFUSE_S3_MEDIA_UPLOAD_ENDPOINT:-http://localhost:9090}
       LANGFUSE_S3_MEDIA_UPLOAD_FORCE_PATH_STYLE: ${LANGFUSE_S3_MEDIA_UPLOAD_FORCE_PATH_STYLE:-true}
       LANGFUSE_S3_MEDIA_UPLOAD_PREFIX: ${LANGFUSE_S3_MEDIA_UPLOAD_PREFIX:-media/}
+      LANGFUSE_S3_BATCH_EXPORT_ENABLED: ${LANGFUSE_S3_BATCH_EXPORT_ENABLED:-false}
+      LANGFUSE_S3_BATCH_EXPORT_BUCKET: ${LANGFUSE_S3_BATCH_EXPORT_BUCKET:-langfuse}
+      LANGFUSE_S3_BATCH_EXPORT_PREFIX: ${LANGFUSE_S3_BATCH_EXPORT_PREFIX:-exports/}
+      LANGFUSE_S3_BATCH_EXPORT_REGION: ${LANGFUSE_S3_BATCH_EXPORT_REGION:-auto}
+      LANGFUSE_S3_BATCH_EXPORT_ENDPOINT: ${LANGFUSE_S3_BATCH_EXPORT_ENDPOINT:-http://minio:9000}
+      LANGFUSE_S3_BATCH_EXPORT_EXTERNAL_ENDPOINT: ${LANGFUSE_S3_BATCH_EXPORT_EXTERNAL_ENDPOINT:-http://localhost:9090}
+      LANGFUSE_S3_BATCH_EXPORT_ACCESS_KEY_ID: ${LANGFUSE_S3_BATCH_EXPORT_ACCESS_KEY_ID:-minio}
+      LANGFUSE_S3_BATCH_EXPORT_SECRET_ACCESS_KEY: ${LANGFUSE_S3_BATCH_EXPORT_SECRET_ACCESS_KEY:-miniosecret} # CHANGEME
+      LANGFUSE_S3_BATCH_EXPORT_FORCE_PATH_STYLE: ${LANGFUSE_S3_BATCH_EXPORT_FORCE_PATH_STYLE:-true}
       LANGFUSE_INGESTION_QUEUE_DELAY_MS: ${LANGFUSE_INGESTION_QUEUE_DELAY_MS:-}
       LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS: ${LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS:-}
       REDIS_HOST: ${REDIS_HOST:-redis}
       REDIS_PORT: ${REDIS_PORT:-6379}
-      REDIS_AUTH: ${REDIS_AUTH:-myredissecret}
+      REDIS_AUTH: ${REDIS_AUTH:-myredissecret} # CHANGEME
+      REDIS_TLS_ENABLED: ${REDIS_TLS_ENABLED:-false}
+      REDIS_TLS_CA: ${REDIS_TLS_CA:-/certs/ca.crt}
+      REDIS_TLS_CERT: ${REDIS_TLS_CERT:-/certs/redis.crt}
+      REDIS_TLS_KEY: ${REDIS_TLS_KEY:-/certs/redis.key}
+      EMAIL_FROM_ADDRESS: ${EMAIL_FROM_ADDRESS:-}
+      SMTP_CONNECTION_URL: ${SMTP_CONNECTION_URL:-}
 
   langfuse-web:
-    image: langfuse/langfuse:3
+    image: docker.io/langfuse/langfuse:3
     restart: always
     depends_on: *langfuse-depends-on
     ports:
-      - "3000:3000"
+      - 3000:3000
     environment:
       <<: *langfuse-worker-env
-      NEXTAUTH_URL: http://localhost:3000
-      NEXTAUTH_SECRET: mysecret
+      NEXTAUTH_SECRET: mysecret # CHANGEME
       LANGFUSE_INIT_ORG_ID: ${LANGFUSE_INIT_ORG_ID:-}
       LANGFUSE_INIT_ORG_NAME: ${LANGFUSE_INIT_ORG_NAME:-}
       LANGFUSE_INIT_PROJECT_ID: ${LANGFUSE_INIT_PROJECT_ID:-}
@@ -63,27 +84,21 @@ services:
       LANGFUSE_INIT_USER_EMAIL: ${LANGFUSE_INIT_USER_EMAIL:-}
       LANGFUSE_INIT_USER_NAME: ${LANGFUSE_INIT_USER_NAME:-}
       LANGFUSE_INIT_USER_PASSWORD: ${LANGFUSE_INIT_USER_PASSWORD:-}
-      LANGFUSE_SDK_CI_SYNC_PROCESSING_ENABLED: ${LANGFUSE_SDK_CI_SYNC_PROCESSING_ENABLED:-false}
-      LANGFUSE_READ_FROM_POSTGRES_ONLY: ${LANGFUSE_READ_FROM_POSTGRES_ONLY:-false}
-      LANGFUSE_READ_FROM_CLICKHOUSE_ONLY: ${LANGFUSE_READ_FROM_CLICKHOUSE_ONLY:-true}
-      LANGFUSE_RETURN_FROM_CLICKHOUSE: ${LANGFUSE_RETURN_FROM_CLICKHOUSE:-true}
 
   clickhouse:
-    image: clickhouse/clickhouse-server
+    image: docker.io/clickhouse/clickhouse-server
     restart: always
     user: "101:101"
-    container_name: clickhouse
-    hostname: clickhouse
     environment:
       CLICKHOUSE_DB: default
       CLICKHOUSE_USER: clickhouse
-      CLICKHOUSE_PASSWORD: clickhouse
+      CLICKHOUSE_PASSWORD: clickhouse # CHANGEME
     volumes:
       - langfuse_clickhouse_data:/var/lib/clickhouse
       - langfuse_clickhouse_logs:/var/log/clickhouse-server
     ports:
-      - "8123:8123"
-      - "9000:9000"
+      - 127.0.0.1:8123:8123
+      - 127.0.0.1:9000:9000
     healthcheck:
       test: wget --no-verbose --tries=1 --spider http://localhost:8123/ping || exit 1
       interval: 5s
@@ -92,18 +107,17 @@ services:
       start_period: 1s
 
   minio:
-    image: minio/minio
+    image: docker.io/minio/minio
     restart: always
-    container_name: minio
     entrypoint: sh
     # create the 'langfuse' bucket before starting the service
     command: -c 'mkdir -p /data/langfuse && minio server --address ":9000" --console-address ":9001" /data'
     environment:
       MINIO_ROOT_USER: minio
-      MINIO_ROOT_PASSWORD: miniosecret
+      MINIO_ROOT_PASSWORD: miniosecret # CHANGEME
     ports:
-      - "9090:9000"
-      - "9091:9001"
+      - 9090:9000
+      - 127.0.0.1:9091:9001
     volumes:
       - langfuse_minio_data:/data
     healthcheck:
@@ -114,12 +128,13 @@ services:
       start_period: 1s
 
   redis:
-    image: redis:7
+    image: docker.io/redis:7
     restart: always
+    # CHANGEME: row below to secure redis password
     command: >
       --requirepass ${REDIS_AUTH:-myredissecret}
     ports:
-      - 6379:6379
+      - 127.0.0.1:6379:6379
     healthcheck:
       test: ["CMD", "redis-cli", "ping"]
       interval: 3s
@@ -127,7 +142,7 @@ services:
       retries: 10
 
   postgres:
-    image: postgres:${POSTGRES_VERSION:-latest}
+    image: docker.io/postgres:${POSTGRES_VERSION:-latest}
     restart: always
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]
@@ -136,10 +151,10 @@ services:
       retries: 10
     environment:
       POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
+      POSTGRES_PASSWORD: postgres # CHANGEME
       POSTGRES_DB: postgres
     ports:
-      - 5432:5432
+      - 127.0.0.1:5432:5432
     volumes:
       - langfuse_postgres_data:/var/lib/postgresql/data
 

ee/LICENSE

@@ -1,24 +1,36 @@
-Langfuse Enterprise License (the “Enterprise License”)
-Copyright (c) 2024 Langfuse GmbH ('Langfuse')
+START NOTE
+Langfuse is an open core project. Langfuse's core
+is permissively licensed (MIT license).
+Certain parts of the periphery of Langfuse are commercially
+licensed and governed by this Enterprise License.
+For the avoidance of doubt, this license does not apply 
+to the core of Langfuse as it is defined in its license in 
+the directory "/LICENSE" (as opposed to this file  "ee/LICENSE")
+which can be used and run without infringing the below license
+and its licensed materials.
+END NOTE
 
-With regard to the Langfuse Software:
+START OF LICENSE
+Langfuse Enterprise license (the “Enterprise License” or "EE license")
+
+Copyright (c) 2023-2025 Langfuse GmbH
+
+With regard to the Langfuse Enterprise Software:
 This software and associated documentation files (the "Software") may only be
-used in production, if you (and any entity that you represent) have agreed to,
-and are in compliance with, the Langfuse Terms of Service, available
+used, if you (and any entity that you represent) have agreed to,
+and are in compliance with, the applicable Langfuse Terms of Service, available
 at https://langfuse.com/terms (the “Enterprise Terms”), or other
 agreement governing the use of the Software, as agreed by you and Langfuse,
-and otherwise have a valid Langfuse Enterprise license.
+and otherwise have a valid Langfuse Enterprise License.
 
 Subject to the foregoing sentence, you are free to
 modify this Software and publish patches to the Software. You agree that Langfuse
 and/or its licensors (as applicable) retain all right, title and interest in and
 to all such modifications and/or patches, and all such modifications and/or
 patches may only be used, copied, modified, displayed, distributed, or otherwise
-exploited with a valid Langfuse Enterprise license.
-
-Notwithstanding the foregoing, you may copy and modify
+exploited with a valid Langfuse Enterprise License. Notwithstanding the foregoing, you may copy and modify
 the Software for development and testing purposes, without requiring a
-subscription. You agree that Langfuse and/or its licensors (as applicable) retain
+subscription. You agree that Langfuse GmbH and/or its licensors (as applicable) retain
 all right, title and interest in and to all such modifications. You are not
 granted any other rights beyond what is expressly stated herein. Subject to the
 foregoing, it is forbidden to copy, merge, publish, distribute, sublicense,
@@ -33,5 +45,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
 For all third party components incorporated into the Langfuse Software, those
-components are licensed under the original license provided by the owner of the 
+components are licensed under the original license provided by the owner of the
 applicable component.
+
+END OF LICENSE

ee/package.json

@@ -26,10 +26,10 @@
   "dependencies": {
     "@langfuse/shared": "workspace:*",
     "@opentelemetry/api": ">=1.0.0 <1.10.0",
-    "axios": "^1.7.7",
-    "next": "^14.2.21",
+    "https-proxy-agent": "^7.0.6",
+    "next": "^14.2.30",
     "next-auth": "^4.24.11",
-    "zod": "^3.23.8"
+    "zod": "^3.25.62"
   },
   "devDependencies": {
     "@repo/eslint-config": "workspace:*",
@@ -40,15 +40,9 @@
     "eslint-config-prettier": "^9.1.0",
     "eslint-config-standard": "^17.1.0",
     "eslint-plugin-prettier": "^5.1.3",
-    "prettier": "^3.3.3",
+    "prettier": "^3.6.2",
     "ts-node": "^10.9.2",
     "tsc-watch": "^6.2.0",
     "typescript": "^5.4.5"
-  },
-  "pnpm": {
-    "overrides": {
-      "jsonpath-plus": "10.0.7",
-      "nanoid": "^3.3.8"
-    }
   }
 }

ee/src/env.ts

@@ -1,4 +1,4 @@
-import { z } from "zod";
+import { z } from "zod/v4";
 import { removeEmptyEnvVariables } from "@langfuse/shared";
 
 const EnvSchema = z.object({

fern/apis/client/definition/score.yml

@@ -14,13 +14,16 @@ types:
   CreateScoreRequest:
     properties:
       id: optional<string>
-      traceId: string
+      traceId: optional<string>
+      sessionId: optional<string>
+      observationId: optional<string>
+      datasetRunId: optional<string>
       name: string
       value:
         type: CreateScoreValue
         docs: The value of the score. Must be passed as string for categorical scores, and numeric for boolean and numeric scores. Boolean score values must equal either 1 or 0 (true or false)
-      observationId: optional<string>
       comment: optional<string>
+      metadata: optional<unknown>
       dataType:
         type: optional<ScoreDataType>
         docs: When set, must match the score value's type. If not set, will be inferred from the score value or config
@@ -64,62 +67,15 @@ types:
           dataType: "BOOLEAN"
           configId: "1234-5678-90ab-cdef"
           traceId: "cdef-1234-5678-90ab"
-  BaseScore:
-    properties:
-      id: string
-      traceId: string
-      name: string
-      source: ScoreSource
-      observationId: optional<string>
-      timestamp: datetime
-      createdAt: datetime
-      updatedAt: datetime
-      authorUserId: optional<string>
-      comment: optional<string>
-      configId:
-        type: optional<string>
-        docs: Reference a score config on a score. When set, config and score name must be equal and value must comply to optionally defined numerical range
-  NumericScore:
-    extends: BaseScore
-    properties:
-      value:
-        type: double
-        docs: The numeric value of the score
-  BooleanScore:
-    extends: BaseScore
-    properties:
-      value:
-        type: double
-        docs: The numeric value of the score. Equals 1 for "True" and 0 for "False"
-      stringValue:
-        type: string
-        docs: The string representation of the score value. Is inferred from the numeric value and equals "True" or "False"
-  CategoricalScore:
-    extends: BaseScore
-    properties:
-      value:
-        type: optional<double>
-        docs: Only defined if a config is linked. Represents the numeric category mapping of the stringValue
-      stringValue:
-        type: string
-        docs: The string representation of the score value. If no config is linked, can be any string. Otherwise, must map to a config category
-  Score:
-    discriminant: "dataType"
-    union:
-      NUMERIC:
-        type: NumericScore
-        docs: "Score with NUMERIC data type"
-      CATEGORICAL:
-        type: CategoricalScore
-        docs: "Score with CATEGORICAL data type"
-      BOOLEAN:
-        type: BooleanScore
-        docs: "Score with BOOLEAN data type"
-  ScoreSource:
-    enum:
-      - ANNOTATION
-      - API
-      - EVAL
+      - value:
+          name: "contextrelevant"
+          value: "not relevant"
+          sessionId: "abyt-1234-5678-80ab"
+      - value:
+          name: "hallucination"
+          value: 0
+          datasetRunId: "7891-5678-90ab-hijk"
+
   ScoreDataType:
     enum:
       - NUMERIC

fern/apis/client/generators.yml

@@ -12,7 +12,7 @@ groups:
       #     namespaceExport: Langfuse
       #     allowCustomFetcher: true
       - name: fernapi/fern-openapi
-        version: 0.0.26
+        version: 0.1.7
         output:
           location: local-file-system
           path: ../../../web/public/generated/api-client

fern/apis/organizations/definition/api.yml

@@ -0,0 +1,32 @@
+name: langfuse-organizations
+docs: |
+  ## General Notes
+  
+  This admin API is only available on self-hosted instances, not on Langfuse Cloud.
+  An administrator must set the `ADMIN_API_KEY` environment variable to use this API.
+  
+  ## Authentication
+
+  Authenticate with the API by setting the Authorization header to `Bearer $ADMIN_API_KEY` where
+  `$ADMIN_API_KEY` is the API key set via the container environment.
+  
+  ## Exports
+
+  - OpenAPI spec: https://cloud.langfuse.com/generated/organizations-api/openapi.yml
+  - Postman collection: https://cloud.langfuse.com/generated/organizations-postman/collection.json
+  
+  ## Looking for the Langfuse API?
+  
+  Are you looking for the full Langfuse API?
+  Check out our [API reference](https://api.reference.langfuse.com/#overview).
+
+error-discrimination:
+  strategy: status-code
+auth: bearer
+imports:
+  commons: commons.yml
+errors:
+  - commons.Error
+  - commons.UnauthorizedError
+  - commons.AccessDeniedError
+  - commons.MethodNotAllowedError

fern/apis/organizations/definition/commons.yml

@@ -0,0 +1,13 @@
+errors:
+  Error:
+    status-code: 400
+    type: string
+  UnauthorizedError:
+    status-code: 401
+    type: string
+  AccessDeniedError:
+    status-code: 403
+    type: string
+  MethodNotAllowedError:
+    status-code: 405
+    type: string

fern/apis/organizations/definition/organizations.yml

@@ -0,0 +1,170 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  commons: ./commons.yml
+
+service:
+  auth: true
+  base-path: /api/admin
+  endpoints:
+    getAll:
+      docs: Get all organizations
+      method: GET
+      path: /organizations
+      response: Organizations
+      errors:
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+    
+    create:
+      docs: Create a new organization
+      method: POST
+      path: /organizations
+      request:
+        name: CreateOrganizationRequest
+        body:
+          properties:
+            name: string
+            metadata:
+              type: optional<map<string, unknown>>
+              docs: Optional metadata for the organization
+      response: Organization
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+    
+    getById:
+      docs: Get organization by ID
+      method: GET
+      path: /organizations/{organizationId}
+      path-parameters:
+        organizationId: string
+      response: Organization
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+    
+    update:
+      docs: Update an organization
+      method: PUT
+      path: /organizations/{organizationId}
+      path-parameters:
+        organizationId: string
+      request:
+        name: UpdateOrganizationRequest
+        body:
+          properties:
+            name: string
+            metadata:
+              type: optional<map<string, unknown>>
+              docs: Optional metadata for the organization
+      response: Organization
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+    
+    delete:
+      docs: Delete an organization
+      method: DELETE
+      path: /organizations/{organizationId}
+      path-parameters:
+        organizationId: string
+      response: DeleteOrganizationResponse
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+
+    # API Key endpoints
+    getApiKeys:
+      docs: Get all API keys for an organization
+      method: GET
+      path: /organizations/{organizationId}/apiKeys
+      path-parameters:
+        organizationId: string
+      response: ApiKeyList
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+
+    createApiKey:
+      docs: Create a new API key for an organization
+      method: POST
+      path: /organizations/{organizationId}/apiKeys
+      path-parameters:
+        organizationId: string
+      request:
+        name: CreateApiKeyRequest
+        body:
+          properties:
+            note:
+              type: optional<string>
+              docs: Optional note for the API key
+      response: ApiKeyResponse
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+
+    deleteApiKey:
+      docs: Delete an API key for an organization
+      method: DELETE
+      path: /organizations/{organizationId}/apiKeys/{apiKeyId}
+      path-parameters:
+        organizationId: string
+        apiKeyId: string
+      response: DeleteOrganizationResponse
+      errors:
+        - commons.Error
+        - commons.UnauthorizedError
+        - commons.MethodNotAllowedError
+
+types:
+  Organizations:
+    docs: List of organizations
+    properties:
+      organizations: list<Organization>
+
+  Organization:
+    docs: Organization object
+    properties:
+      id: string
+      name: string
+      createdAt: datetime
+      metadata:
+        type: map<string, unknown>
+        docs: Metadata for the organization
+
+  DeleteOrganizationResponse:
+    docs: Response for successful organization deletion
+    properties:
+      success: boolean
+
+  ApiKeyList:
+    docs: List of API keys for an organization
+    properties:
+      apiKeys: list<ApiKeySummary>
+
+  ApiKeySummary:
+    docs: Summary of an API key
+    properties:
+      id: string
+      createdAt: datetime
+      expiresAt: optional<datetime>
+      lastUsedAt: optional<datetime>
+      note: optional<string>
+      publicKey: string
+      displaySecretKey: string
+
+  ApiKeyResponse:
+    docs: Response for API key creation
+    properties:
+      id: string
+      createdAt: datetime
+      publicKey: string
+      secretKey: string
+      displaySecretKey: string
+      note: optional<string>

fern/apis/organizations/generators.yml

@@ -0,0 +1,17 @@
+default-group: local
+groups:
+  local:
+    generators:
+      - name: fernapi/fern-openapi
+        version: 0.1.7
+        output:
+          location: local-file-system
+          path: ../../../web/public/generated/organizations-api
+        config:
+          namespaceExport: Langfuse
+          allowCustomFetcher: true
+      - name: fernapi/fern-postman
+        version: 0.0.45
+        output:
+          location: local-file-system
+          path: ../../../web/public/generated/organizations-postman

fern/apis/server/definition/annotation-queues.yml

@@ -0,0 +1,201 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  commons: ./commons.yml
+  pagination: ./utils/pagination.yml
+
+service:
+  auth: true
+  base-path: /api/public
+  endpoints:
+    listQueues:
+      docs: Get all annotation queues
+      method: GET
+      path: /annotation-queues
+      request:
+        name: GetAnnotationQueuesRequest
+        query-parameters:
+          page:
+            type: optional<integer>
+            docs: page number, starts at 1
+          limit:
+            type: optional<integer>
+            docs: limit of items per page
+      response: PaginatedAnnotationQueues
+
+    getQueue:
+      docs: Get an annotation queue by ID
+      method: GET
+      path: /annotation-queues/{queueId}
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+      response: AnnotationQueue
+
+    listQueueItems:
+      docs: Get items for a specific annotation queue
+      method: GET
+      path: /annotation-queues/{queueId}/items
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+      request:
+        name: GetAnnotationQueueItemsRequest
+        query-parameters:
+          status:
+            type: optional<AnnotationQueueStatus>
+            docs: Filter by status
+          page:
+            type: optional<integer>
+            docs: page number, starts at 1
+          limit:
+            type: optional<integer>
+            docs: limit of items per page
+      response: PaginatedAnnotationQueueItems
+
+    getQueueItem:
+      docs: Get a specific item from an annotation queue
+      method: GET
+      path: /annotation-queues/{queueId}/items/{itemId}
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+        itemId:
+          type: string
+          docs: The unique identifier of the annotation queue item
+      response: AnnotationQueueItem
+
+    createQueueItem:
+      docs: Add an item to an annotation queue
+      method: POST
+      path: /annotation-queues/{queueId}/items
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+      request: CreateAnnotationQueueItemRequest
+      response: AnnotationQueueItem
+
+    updateQueueItem:
+      docs: Update an annotation queue item
+      method: PATCH
+      path: /annotation-queues/{queueId}/items/{itemId}
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+        itemId:
+          type: string
+          docs: The unique identifier of the annotation queue item
+      request: UpdateAnnotationQueueItemRequest
+      response: AnnotationQueueItem
+
+    deleteQueueItem:
+      docs: Remove an item from an annotation queue
+      method: DELETE
+      path: /annotation-queues/{queueId}/items/{itemId}
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+        itemId:
+          type: string
+          docs: The unique identifier of the annotation queue item
+      response: DeleteAnnotationQueueItemResponse
+
+    createQueueAssignment:
+      docs: Create an assignment for a user to an annotation queue
+      method: POST
+      path: /annotation-queues/{queueId}/assignments
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+      request: AnnotationQueueAssignmentRequest
+      response: CreateAnnotationQueueAssignmentResponse
+
+    deleteQueueAssignment:
+      docs: Delete an assignment for a user to an annotation queue
+      method: DELETE
+      path: /annotation-queues/{queueId}/assignments
+      path-parameters:
+        queueId:
+          type: string
+          docs: The unique identifier of the annotation queue
+      request: AnnotationQueueAssignmentRequest
+      response: DeleteAnnotationQueueAssignmentResponse
+
+types:
+  AnnotationQueueStatus:
+    enum:
+      - PENDING
+      - COMPLETED
+
+  AnnotationQueueObjectType:
+    enum:
+      - TRACE
+      - OBSERVATION
+
+  AnnotationQueue:
+    properties:
+      id: string
+      name: string
+      description: optional<string>
+      scoreConfigIds: list<string>
+      createdAt: datetime
+      updatedAt: datetime
+
+  AnnotationQueueItem:
+    properties:
+      id: string
+      queueId: string
+      objectId: string
+      objectType: AnnotationQueueObjectType
+      status: AnnotationQueueStatus
+      completedAt: optional<datetime>
+      createdAt: datetime
+      updatedAt: datetime
+
+  PaginatedAnnotationQueues:
+    properties:
+      data: list<AnnotationQueue>
+      meta: pagination.MetaResponse
+
+  PaginatedAnnotationQueueItems:
+    properties:
+      data: list<AnnotationQueueItem>
+      meta: pagination.MetaResponse
+
+  CreateAnnotationQueueItemRequest:
+    properties:
+      objectId: string
+      objectType: AnnotationQueueObjectType
+      status:
+        type: optional<AnnotationQueueStatus>
+        docs: Defaults to PENDING for new queue items
+
+  UpdateAnnotationQueueItemRequest:
+    properties:
+      status:
+        type: optional<AnnotationQueueStatus>
+
+  DeleteAnnotationQueueItemResponse:
+    properties:
+      success: boolean
+      message: string
+
+  AnnotationQueueAssignmentRequest:
+    properties:
+      userId: string
+
+  DeleteAnnotationQueueAssignmentResponse:
+    properties:
+      success: boolean
+
+  CreateAnnotationQueueAssignmentResponse:
+    properties:
+      userId: string
+      queueId: string
+      projectId: string

fern/apis/server/definition/commons.yml

@@ -38,6 +38,9 @@ types:
       public:
         type: optional<boolean>
         docs: Public traces are accessible via url without login
+      environment:
+        type: optional<string>
+        docs: The environment from which this trace originated. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
   TraceWithDetails: # GET /traces
     extends: Trace
     properties:
@@ -72,13 +75,16 @@ types:
         type: list<ObservationsView>
         docs: List of observations
       scores:
-        type: list<Score>
+        type: list<ScoreV1>
         docs: List of scores
   Session:
     properties:
       id: string
       createdAt: datetime
       projectId: string
+      environment:
+        type: optional<string>
+        docs: The environment from which this session originated.
   SessionWithTraces:
     extends: Session
     properties:
@@ -145,6 +151,9 @@ types:
       costDetails:
         type: optional<map<string, double>>
         docs: The cost details of the observation. Key is the name of the cost metric, value is the cost in USD. The total key is the sum of all (non-total) cost metrics or the total value ingested.
+      environment:
+        type: optional<string>
+        docs: The environment from which this observation originated. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
 
   ObservationsView:
     extends: Observation
@@ -231,7 +240,7 @@ types:
     properties:
       value: double
       label: string
-  BaseScore:
+  BaseScoreV1:
     properties:
       id: string
       traceId: string
@@ -243,12 +252,77 @@ types:
       updatedAt: datetime
       authorUserId: optional<string>
       comment: optional<string>
+      metadata: optional<unknown>
       configId:
         type: optional<string>
         docs: Reference a score config on a score. When set, config and score name must be equal and value must comply to optionally defined numerical range
       queueId:
         type: optional<string>
         docs: Reference an annotation queue on a score. Populated if the score was initially created in an annotation queue.
+      environment:
+        type: optional<string>
+        docs: The environment from which this score originated. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
+  NumericScoreV1:
+    extends: BaseScoreV1
+    properties:
+      value:
+        type: double
+        docs: The numeric value of the score
+  BooleanScoreV1:
+    extends: BaseScoreV1
+    properties:
+      value:
+        type: double
+        docs: The numeric value of the score. Equals 1 for "True" and 0 for "False"
+      stringValue:
+        type: string
+        docs: The string representation of the score value. Is inferred from the numeric value and equals "True" or "False"
+  CategoricalScoreV1:
+    extends: BaseScoreV1
+    properties:
+      value:
+        type: optional<double>
+        docs: Only defined if a config is linked. Represents the numeric category mapping of the stringValue
+      stringValue:
+        type: string
+        docs: The string representation of the score value. If no config is linked, can be any string. Otherwise, must map to a config category
+  ScoreV1:
+    discriminant: "dataType"
+    union:
+      NUMERIC:
+        type: NumericScoreV1
+        docs: "Score with NUMERIC data type"
+      CATEGORICAL:
+        type: CategoricalScoreV1
+        docs: "Score with CATEGORICAL data type"
+      BOOLEAN:
+        type: BooleanScoreV1
+        docs: "Score with BOOLEAN data type"
+
+  BaseScore:
+    properties:
+      id: string
+      traceId: optional<string>
+      sessionId: optional<string>
+      observationId: optional<string>
+      datasetRunId: optional<string>
+      name: string
+      source: ScoreSource
+      timestamp: datetime
+      createdAt: datetime
+      updatedAt: datetime
+      authorUserId: optional<string>
+      comment: optional<string>
+      metadata: optional<unknown>
+      configId:
+        type: optional<string>
+        docs: Reference a score config on a score. When set, config and score name must be equal and value must comply to optionally defined numerical range
+      queueId:
+        type: optional<string>
+        docs: Reference an annotation queue on a score. Populated if the score was initially created in an annotation queue.
+      environment:
+        type: optional<string>
+        docs: The environment from which this score originated. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
   NumericScore:
     extends: BaseScore
     properties:
@@ -378,18 +452,18 @@ types:
         type: string
       startDate:
         docs: Apply only to generations which are newer than this ISO date.
-        type: optional<date>
+        type: optional<datetime>
       unit:
         docs: Unit used by this model.
-        type: ModelUsageUnit
+        type: optional<ModelUsageUnit>
       inputPrice:
-        docs: Price (USD) per input unit
+        docs: Deprecated. See 'prices' instead. Price (USD) per input unit
         type: optional<double>
       outputPrice:
-        docs: Price (USD) per output unit
+        docs: Deprecated. See 'prices' instead. Price (USD) per output unit
         type: optional<double>
       totalPrice:
-        docs: Price (USD) per total unit. Cannot be set if input or output price is set.
+        docs: Deprecated. See 'prices' instead. Price (USD) per total unit. Cannot be set if input or output price is set.
         type: optional<double>
       tokenizerId:
         docs: Optional. Tokenizer to be applied to observations which match to this model. See docs for more details.
@@ -399,6 +473,13 @@ types:
         type: optional<unknown>
       isLangfuseManaged:
         type: boolean
+      prices:
+        docs: Price (USD) by usage type
+        type: map<string, ModelPrice>
+
+  ModelPrice:
+    properties:
+      price: double
 
   # Utilities
   ModelUsageUnit:

fern/apis/server/definition/dataset-items.yml

@@ -37,8 +37,21 @@ service:
             type: optional<integer>
             docs: limit of items per page
       response: PaginatedDatasetItems
+    delete:
+      docs: Delete a dataset item and all its run items. This action is irreversible.
+      method: DELETE
+      path: /dataset-items/{id}
+      path-parameters:
+        id:
+          type: string
+      response: DeleteDatasetItemResponse
 
 types:
+  DeleteDatasetItemResponse:
+    properties:
+      message:
+        type: string
+        docs: Success message after deletion
   CreateDatasetItemRequest:
     properties:
       datasetName: string

fern/apis/server/definition/dataset-run-items.yml

@@ -1,6 +1,7 @@
 # yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
 imports:
   commons: ./commons.yml
+  pagination: ./utils/pagination.yml
 service:
   auth: true
   base-path: /api/public
@@ -11,6 +12,23 @@ service:
       path: /dataset-run-items
       request: CreateDatasetRunItemRequest
       response: commons.DatasetRunItem
+    list:
+      method: GET
+      docs: List dataset run items
+      path: /dataset-run-items
+      request:
+        name: ListDatasetRunItemsRequest
+        query-parameters:
+          datasetId: string
+          runName: string
+          page:
+            type: optional<integer>
+            docs: page number, starts at 1
+          limit:
+            type: optional<integer>
+            docs: limit of items per page
+      response: PaginatedDatasetRunItems
+
 types:
   CreateDatasetRunItemRequest:
     properties:
@@ -26,3 +44,7 @@ types:
       traceId:
         type: optional<string>
         docs: traceId should always be provided. For compatibility with older SDK versions it can also be inferred from the provided observationId.
+  PaginatedDatasetRunItems:
+    properties:
+      data: list<commons.DatasetRunItem>
+      meta: pagination.MetaResponse

fern/apis/server/definition/datasets.yml

@@ -41,6 +41,14 @@ service:
         datasetName: string
         runName: string
       response: commons.DatasetRunWithItems
+    deleteRun:
+      method: DELETE
+      docs: Delete a dataset run and all its run items. This action is irreversible.
+      path: /datasets/{datasetName}/runs/{runName}
+      path-parameters:
+        datasetName: string
+        runName: string
+      response: DeleteDatasetRunResponse
     getRuns:
       method: GET
       docs: Get dataset runs
@@ -72,3 +80,6 @@ types:
     properties:
       data: list<commons.DatasetRun>
       meta: pagination.MetaResponse
+  DeleteDatasetRunResponse:
+    properties:
+      message: string

fern/apis/server/definition/ingestion.yml

@@ -8,7 +8,15 @@ service:
   endpoints:
     batch:
       docs: |
-        Batched ingestion for Langfuse Tracing. If you want to use tracing via the API, such as to build your own Langfuse client implementation, this is the only API route you need to implement.
+        Batched ingestion for Langfuse Tracing.
+        If you want to use tracing via the API, such as to build your own Langfuse client implementation, this is the only API route you need to implement.
+
+        Within each batch, there can be multiple events.
+        Each event has a type, an id, a timestamp, metadata and a body.
+        Internally, we refer to this as the "event envelope" as it tells us something about the event but not the trace.
+        We use the event id within this envelope to deduplicate messages to avoid processing the same event twice, i.e. the event id should be unique per request.
+        The event.body.id is the ID of the actual trace and will be used for updates and will be visible within the Langfuse App.
+        I.e. if you want to update a trace, you'd use the same body id, but separate event IDs.
 
         Notes:
         - Introduction to data model: https://langfuse.com/docs/tracing-data-model
@@ -29,6 +37,70 @@ service:
       response:
         type: IngestionResponse
         status-code: 207
+      examples:
+        # Trace Create Request
+        - request:
+            batch:
+              - id: abcdef-1234-5678-90ab
+                timestamp: "2022-01-01T00:00:00.000Z"
+                type: "trace-create"
+                body:
+                  id: abcdef-1234-5678-90ab
+                  timestamp: "2022-01-01T00:00:00.000Z"
+                  environment: "production"
+                  name: "My Trace"
+                  userId: "1234-5678-90ab-cdef"
+                  input: "My input"
+                  output: "My output"
+                  sessionId: "1234-5678-90ab-cdef"
+                  release: "1.0.0"
+                  version: "1.0.0"
+                  metadata: "My metadata"
+                  tags: ["tag1", "tag2"]
+                  public: true
+          response:
+            body:
+              successes:
+                - id: abcdef-1234-5678-90ab
+                  status: 201
+              errors: []
+
+        # Observation Create Request
+        - request:
+            batch:
+              - id: abcdef-1234-5678-90ab
+                timestamp: "2022-01-01T00:00:00.000Z"
+                type: "span-create"
+                body:
+                  id: abcdef-1234-5678-90ab
+                  traceId: "1234-5678-90ab-cdef"
+                  startTime: "2022-01-01T00:00:00.000Z"
+                  environment: "test"
+          response:
+            body:
+              successes:
+                - id: abcdef-1234-5678-90ab
+                  status: 201
+              errors: []
+
+        # Score Create Request
+        - request:
+            batch:
+              - id: abcdef-1234-5678-90ab
+                timestamp: "2022-01-01T00:00:00.000Z"
+                type: "score-create"
+                body:
+                  id: abcdef-1234-5678-90ab
+                  traceId: "1234-5678-90ab-cdef"
+                  name: "My Score"
+                  value: 0.9
+                  environment: "default"
+          response:
+            body:
+              successes:
+                - id: abcdef-1234-5678-90ab
+                  status: 201
+              errors: []
 
 types:
   IngestionEvent:
@@ -99,6 +171,7 @@ types:
       statusMessage: optional<string>
       parentObservationId: optional<string>
       version: optional<string>
+      environment: optional<string>
 
   CreateEventBody:
     extends: OptionalObservationBody
@@ -128,7 +201,7 @@ types:
       modelParameters: optional<map<string, commons.MapValue>>
       usage: optional<IngestionUsage>
       usageDetails: optional<UsageDetails>
-      costDetails: optional<map<string, float>>
+      costDetails: optional<map<string, double>>
       promptName: optional<string>
       promptVersion: optional<integer>
 
@@ -141,7 +214,7 @@ types:
       usage: optional<IngestionUsage>
       promptName: optional<string>
       usageDetails: optional<UsageDetails>
-      costDetails: optional<map<string, float>>
+      costDetails: optional<map<string, double>>
       promptVersion: optional<integer>
 
   ObservationBody:
@@ -163,6 +236,7 @@ types:
       level: optional<commons.ObservationLevel>
       statusMessage: optional<string>
       parentObservationId: optional<string>
+      environment: optional<string>
 
   TraceBody:
     properties:
@@ -177,6 +251,7 @@ types:
       version: optional<string>
       metadata: optional<unknown>
       tags: optional<list<string>>
+      environment: optional<string>
       public:
         type: optional<boolean>
         docs: Make trace publicly accessible via url
@@ -188,13 +263,17 @@ types:
   ScoreBody:
     properties:
       id: optional<string>
-      traceId: string
+      traceId: optional<string>
+      sessionId: optional<string>
+      observationId: optional<string>
+      datasetRunId: optional<string>
       name: string
+      environment: optional<string>
       value:
         type: commons.CreateScoreValue
         docs: The value of the score. Must be passed as string for categorical scores, and numeric for boolean and numeric scores. Boolean score values must equal either 1 or 0 (true or false)
-      observationId: optional<string>
       comment: optional<string>
+      metadata: optional<unknown>
       dataType:
         type: optional<commons.ScoreDataType>
         docs: When set, must match the score value's type. If not set, will be inferred from the score value or config
@@ -238,6 +317,14 @@ types:
           dataType: "BOOLEAN"
           configId: "1234-5678-90ab-cdef"
           traceId: "cdef-1234-5678-90ab"
+      - value:
+          name: "contextrelevant"
+          value: "not relevant"
+          sessionId: "abyt-1234-5678-80ab"
+      - value:
+          name: "hallucination"
+          value: 0
+          datasetRunId: "7891-5678-90ab-hijk"
 
   BaseEvent:
     properties:
@@ -318,16 +405,27 @@ types:
       successes: list<IngestionSuccess>
       errors: list<IngestionError>
 
-  OpenAIUsageSchema:
+  OpenAICompletionUsageSchema:
+    docs: OpenAI Usage schema from (Chat-)Completion APIs
     properties:
       prompt_tokens: integer
       completion_tokens: integer
       total_tokens: integer
-      prompt_tokens_details: optional<map<string, integer>>
-      completion_tokens_details: optional<map<string, integer>>
+      prompt_tokens_details: optional<map<string, optional<integer>>>
+      completion_tokens_details: optional<map<string, optional<integer>>>
+
+  OpenAIResponseUsageSchema:
+    docs: OpenAI Usage schema from Response API
+    properties:
+      input_tokens: integer
+      output_tokens: integer
+      total_tokens: integer
+      input_tokens_details: optional<map<string, optional<integer>>>
+      output_tokens_details: optional<map<string, optional<integer>>>
 
   UsageDetails:
     discriminated: false
     union:
       - map<string, integer>
-      - OpenAIUsageSchema
+      - OpenAICompletionUsageSchema
+      - OpenAIResponseUsageSchema

fern/apis/server/definition/llm-connections.yml

@@ -0,0 +1,102 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  commons: ./commons.yml
+  pagination: ./utils/pagination.yml
+service:
+  auth: true
+  base-path: /api/public
+  endpoints:
+    list:
+      method: GET
+      docs: Get all LLM connections in a project
+      path: /llm-connections
+      request:
+        name: GetLlmConnectionsRequest
+        query-parameters:
+          page:
+            type: optional<integer>
+            docs: page number, starts at 1
+          limit:
+            type: optional<integer>
+            docs: limit of items per page
+      response: PaginatedLlmConnections
+    upsert:
+      method: PUT
+      docs: Create or update an LLM connection. The connection is upserted on provider.
+      path: /llm-connections
+      request: UpsertLlmConnectionRequest
+      response: LlmConnection
+
+types:
+  LlmConnection:
+    docs: LLM API connection configuration (secrets excluded)
+    properties:
+      id: string
+      provider:
+        type: string
+        docs: Provider name (e.g., 'openai', 'my-gateway'). Must be unique in project, used for upserting.
+      adapter:
+        type: string
+        docs: The adapter used to interface with the LLM
+      displaySecretKey:
+        type: string
+        docs: Masked version of the secret key for display purposes
+      baseURL:
+        type: optional<string>
+        docs: Custom base URL for the LLM API
+      customModels:
+        type: list<string>
+        docs: List of custom model names available for this connection
+      withDefaultModels:
+        type: boolean
+        docs: Whether to include default models for this adapter
+      extraHeaderKeys:
+        type: list<string>
+        docs: Keys of extra headers sent with requests (values excluded for security)
+      createdAt: datetime
+      updatedAt: datetime
+
+  PaginatedLlmConnections:
+    properties:
+      data: list<LlmConnection>
+      meta: pagination.MetaResponse
+
+  UpsertLlmConnectionRequest:
+    docs: Request to create or update an LLM connection (upsert)
+    properties:
+      provider:
+        type: string
+        docs: Provider name (e.g., 'openai', 'my-gateway'). Must be unique in project, used for upserting.
+      adapter:
+        type: LlmAdapter
+        docs: The adapter used to interface with the LLM
+      secretKey:
+        type: string
+        docs: Secret key for the LLM API.
+      baseURL:
+        type: optional<string>
+        docs: Custom base URL for the LLM API
+      customModels:
+        type: optional<list<string>>
+        docs: List of custom model names
+      withDefaultModels:
+        type: optional<boolean>
+        docs: Whether to include default models. Default is true.
+      extraHeaders:
+        type: optional<map<string, string>>
+        docs: Extra headers to send with requests
+
+  LlmAdapter:
+    enum:
+      - value: anthropic
+        name: Anthropic
+      - value: openai
+        name: OpenAI
+      - value: azure
+        name: Azure
+      - value: bedrock
+        name: Bedrock
+      - value: google-vertex-ai
+        name: GoogleVertexAI
+      - value: google-ai-studio
+        name: GoogleAIStudio

fern/apis/server/definition/metrics.yml

@@ -6,67 +6,64 @@ service:
   auth: true
   base-path: /api/public
   endpoints:
-    daily:
-      docs: Get daily metrics of the Langfuse project
+    metrics:
+      docs: Get metrics from the Langfuse project using a query object
       method: GET
-      path: /metrics/daily
+      path: /metrics
       request:
-        name: GetDailyMetricsRequest
+        name: GetMetricsRequest
         query-parameters:
-          page:
-            type: optional<integer>
-            docs: page number, starts at 1
-          limit:
-            type: optional<integer>
-            docs: limit of items per page
-          traceName:
-            type: optional<string>
-            docs: Optional filter by the name of the trace
-          userId:
-            type: optional<string>
-            docs: Optional filter by the userId associated with the trace
-          tags:
-            type: optional<string>
-            allow-multiple: true
-            docs: Optional filter for metrics where traces include all of these tags
-          fromTimestamp:
-            type: optional<datetime>
-            docs: Optional filter to only include traces and observations on or after a certain datetime (ISO 8601)
-          toTimestamp:
-            type: optional<datetime>
-            docs: Optional filter to only include traces and observations before a certain datetime (ISO 8601)
-      response: DailyMetrics
+          query:
+            type: string
+            docs: |
+              JSON string containing the query parameters with the following structure:
+              ```json
+              {
+                "view": string,           // Required. One of "traces", "observations", "scores-numeric", "scores-categorical"
+                "dimensions": [           // Optional. Default: []
+                  {
+                    "field": string       // Field to group by, e.g. "name", "userId", "sessionId"
+                  }
+                ],
+                "metrics": [              // Required. At least one metric must be provided
+                  {
+                    "measure": string,    // What to measure, e.g. "count", "latency", "value"
+                    "aggregation": string // How to aggregate, e.g. "count", "sum", "avg", "p95", "histogram"
+                  }
+                ],
+                "filters": [              // Optional. Default: []
+                  {
+                    "column": string,     // Column to filter on
+                    "operator": string,   // Operator, e.g. "=", ">", "<", "contains"
+                    "value": any,         // Value to compare against
+                    "type": string,       // Data type, e.g. "string", "number", "stringObject"
+                    "key": string         // Required only when filtering on metadata
+                  }
+                ],
+                "timeDimension": {        // Optional. Default: null. If provided, results will be grouped by time
+                  "granularity": string   // One of "minute", "hour", "day", "week", "month", "auto"
+                },
+                "fromTimestamp": string,  // Required. ISO datetime string for start of time range
+                "toTimestamp": string,    // Required. ISO datetime string for end of time range
+                "orderBy": [              // Optional. Default: null
+                  {
+                    "field": string,      // Field to order by
+                    "direction": string   // "asc" or "desc"
+                  }
+                ],
+                "config": {               // Optional. Query-specific configuration
+                  "bins": number,         // Optional. Number of bins for histogram (1-100), default: 10
+                  "row_limit": number     // Optional. Row limit for results (1-1000)
+                }
+              }
+              ```
+      response: MetricsResponse
 types:
-  DailyMetrics:
+  MetricsResponse:
     properties:
       data:
-        type: list<DailyMetricsDetails>
-        docs: A list of daily metrics, only days with ingested data are included.
-      meta: pagination.MetaResponse
-  DailyMetricsDetails:
-    properties:
-      date: date
-      countTraces: integer
-      countObservations: integer
-      totalCost:
-        type: double
-        docs: Total model cost in USD
-      usage: list<UsageByModel>
-  UsageByModel:
-    docs: Daily usage of a given model. Usage corresponds to the unit set for the specific model (e.g. tokens).
-    properties:
-      model: optional<string>
-      inputUsage:
-        type: integer
-        docs: Total number of generation input units (e.g. tokens)
-      outputUsage:
-        type: integer
-        docs: Total number of generation output units (e.g. tokens)
-      totalUsage:
-        type: integer
-        docs: Total number of generation total units (e.g. tokens)
-      countTraces: integer
-      countObservations: integer
-      totalCost:
-        type: double
-        docs: Total model cost in USD
+        type: list<map<string, unknown>>
+        docs: |
+          The metrics data. Each item in the list contains the metric values and dimensions requested in the query.
+          Format varies based on the query parameters.
+          Histograms will return an array with [lower, upper, height] tuples.

fern/apis/server/definition/models.yml

@@ -58,7 +58,7 @@ types:
         type: optional<datetime>
       unit:
         docs: Unit used by this model.
-        type: commons.ModelUsageUnit
+        type: optional<commons.ModelUsageUnit>
       inputPrice:
         docs: Price (USD) per input unit
         type: optional<double>

fern/apis/server/definition/observations.yml

@@ -32,10 +32,17 @@ service:
           userId: optional<string>
           type: optional<string>
           traceId: optional<string>
+          level:
+            type: optional<commons.ObservationLevel>
+            docs: Optional filter for observations with a specific level (e.g. "DEBUG", "DEFAULT", "WARNING", "ERROR").
           parentObservationId: optional<string>
+          environment:
+            type: optional<string>
+            allow-multiple: true
+            docs: Optional filter for observations where the environment is one of the provided values.
           fromStartTime:
             type: optional<datetime>
-            docs: Retrieve only observations with a start_time or or after this datetime (ISO 8601).
+            docs: Retrieve only observations with a start_time on or after this datetime (ISO 8601).
           toStartTime:
             type: optional<datetime>
             docs: Retrieve only observations with a start_time before this datetime (ISO 8601).

fern/apis/server/definition/organizations.yml

@@ -0,0 +1,80 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  commons: ./commons.yml
+  pagination: ./utils/pagination.yml
+
+service:
+  auth: true
+  base-path: /api/public
+  endpoints:
+    getOrganizationMemberships:
+      docs: Get all memberships for the organization associated with the API key (requires organization-scoped API key)
+      method: GET
+      path: /organizations/memberships
+      response: MembershipsResponse
+
+    updateOrganizationMembership:
+      docs: Create or update a membership for the organization associated with the API key (requires organization-scoped API key)
+      method: PUT
+      path: /organizations/memberships
+      request: MembershipRequest
+      response: MembershipResponse
+
+    getProjectMemberships:
+      docs: Get all memberships for a specific project (requires organization-scoped API key)
+      method: GET
+      path: /projects/{projectId}/memberships
+      path-parameters:
+        projectId: string
+      response: MembershipsResponse
+
+    updateProjectMembership:
+      docs: Create or update a membership for a specific project (requires organization-scoped API key). The user must already be a member of the organization.
+      method: PUT
+      path: /projects/{projectId}/memberships
+      path-parameters:
+        projectId: string
+      request: MembershipRequest
+      response: MembershipResponse
+
+    getOrganizationProjects:
+      docs: Get all projects for the organization associated with the API key (requires organization-scoped API key)
+      method: GET
+      path: /organizations/projects
+      response: OrganizationProjectsResponse
+
+types:
+  MembershipRole:
+    enum:
+      - OWNER
+      - ADMIN
+      - MEMBER
+      - VIEWER
+
+  MembershipRequest:
+    properties:
+      userId: string
+      role: MembershipRole
+
+  MembershipResponse:
+    properties:
+      userId: string
+      role: MembershipRole
+      email: string
+      name: string
+
+  MembershipsResponse:
+    properties:
+      memberships: list<MembershipResponse>
+
+  OrganizationProject:
+    properties:
+      id: string
+      name: string
+      metadata: optional<map<string, unknown>>
+      createdAt: datetime
+      updatedAt: datetime
+
+  OrganizationProjectsResponse:
+    properties:
+      projects: list<OrganizationProject>

fern/apis/server/definition/projects.yml

@@ -12,6 +12,85 @@ service:
       path: /projects
       response: Projects
 
+    create:
+      docs: Create a new project (requires organization-scoped API key)
+      method: POST
+      path: /projects
+      request:
+        name: CreateProjectRequest
+        body:
+          properties:
+            name: string
+            metadata:
+              type: optional<map<string, unknown>>
+              docs: Optional metadata for the project
+            retention:
+              type: integer
+              docs: Number of days to retain data. Must be 0 or at least 3 days. Requires data-retention entitlement for non-zero values. Optional.
+      response: Project
+
+    update:
+      docs: Update a project by ID (requires organization-scoped API key).
+      method: PUT
+      path: /projects/{projectId}
+      path-parameters:
+        projectId: string
+      request:
+        name: UpdateProjectRequest
+        body:
+          properties:
+            name: string
+            metadata:
+              type: optional<map<string, unknown>>
+              docs: Optional metadata for the project
+            retention:
+              type: integer
+              docs: Number of days to retain data. Must be 0 or at least 3 days. Requires data-retention entitlement for non-zero values. Optional.
+      response: Project
+
+    delete:
+      docs: Delete a project by ID (requires organization-scoped API key). Project deletion is processed asynchronously.
+      method: DELETE
+      path: /projects/{projectId}
+      path-parameters:
+        projectId: string
+      response:
+        status-code: 202
+        type: ProjectDeletionResponse
+
+    # API Key endpoints
+    getApiKeys:
+      docs: Get all API keys for a project (requires organization-scoped API key)
+      method: GET
+      path: /projects/{projectId}/apiKeys
+      path-parameters:
+        projectId: string
+      response: ApiKeyList
+
+    createApiKey:
+      docs: Create a new API key for a project (requires organization-scoped API key)
+      method: POST
+      path: /projects/{projectId}/apiKeys
+      path-parameters:
+        projectId: string
+      request:
+        name: CreateApiKeyRequest
+        body:
+          properties:
+            note:
+              type: optional<string>
+              docs: Optional note for the API key
+      response: ApiKeyResponse
+
+    deleteApiKey:
+      docs: Delete an API key for a project (requires organization-scoped API key)
+      method: DELETE
+      path: /projects/{projectId}/apiKeys/{apiKeyId}
+      path-parameters:
+        projectId: string
+        apiKeyId: string
+      response: ApiKeyDeletionResponse
+
 types:
   Projects:
     properties:
@@ -21,3 +100,45 @@ types:
     properties:
       id: string
       name: string
+      metadata:
+        type: map<string, unknown>
+        docs: Metadata for the project
+      retentionDays:
+        type: optional<integer>
+        docs: Number of days to retain data. Null or 0 means no retention. Omitted if no retention is configured.
+
+  ProjectDeletionResponse:
+    properties:
+      success: boolean
+      message: string
+
+  ApiKeyList:
+    docs: List of API keys for a project
+    properties:
+      apiKeys: list<ApiKeySummary>
+
+  ApiKeySummary:
+    docs: Summary of an API key
+    properties:
+      id: string
+      createdAt: datetime
+      expiresAt: optional<datetime>
+      lastUsedAt: optional<datetime>
+      note: optional<string>
+      publicKey: string
+      displaySecretKey: string
+
+  ApiKeyResponse:
+    docs: Response for API key creation
+    properties:
+      id: string
+      createdAt: datetime
+      publicKey: string
+      secretKey: string
+      displaySecretKey: string
+      note: optional<string>
+
+  ApiKeyDeletionResponse:
+    docs: Response for API key deletion
+    properties:
+      success: boolean

fern/apis/server/definition/prompt-version.yml

@@ -0,0 +1,27 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  prompts: ./prompts.yml
+  pagination: ./utils/pagination.yml
+service:
+  auth: true
+  base-path: /api/public/v2
+  endpoints:
+    update:
+      docs: Update labels for a specific prompt version
+      method: PATCH
+      path: /prompts/{name}/versions/{version}
+      path-parameters:
+        name:
+          type: string
+          docs: The name of the prompt
+        version:
+          type: integer
+          docs: Version of the prompt to update
+      request:
+        name: UpdatePromptRequest
+        body:
+          properties:
+            newLabels:
+              type: list<string>
+              docs: New labels for the prompt version. Labels are unique across versions. The "latest" label is reserved and managed by Langfuse.
+      response: prompts.Prompt

fern/apis/server/definition/prompts.yml

@@ -82,7 +82,7 @@ types:
   CreateChatPromptRequest:
     properties:
       name: string
-      prompt: list<ChatMessage>
+      prompt: list<ChatMessageWithPlaceholders>
       config: optional<unknown>
       labels:
         type: optional<list<string>>
@@ -90,6 +90,9 @@ types:
       tags:
         type: optional<list<string>>
         docs: List of tags to apply to all versions of this prompt.
+      commitMessage:
+        type: optional<string>
+        docs: Commit message for this prompt version.
 
   CreateTextPromptRequest:
     properties:
@@ -102,6 +105,9 @@ types:
       tags:
         type: optional<list<string>>
         docs: List of tags to apply to all versions of this prompt.
+      commitMessage:
+        type: optional<string>
+        docs: Commit message for this prompt version.
 
   Prompt:
     union:
@@ -119,6 +125,17 @@ types:
       tags:
         type: list<string>
         docs: List of tags. Used to filter via UI and API. The same across versions of a prompt.
+      commitMessage:
+        type: optional<string>
+        docs: Commit message for this prompt version.
+      resolutionGraph:
+        type: optional<map<string, unknown>>
+        docs: The dependency resolution graph for the current prompt. Null if prompt has no dependencies.
+
+  ChatMessageWithPlaceholders:
+    union:
+      chatmessage: ChatMessage
+      placeholder: PlaceholderMessage
 
   ChatMessage:
     properties:
@@ -127,6 +144,11 @@ types:
       content:
         type: string
 
+  PlaceholderMessage:
+    properties:
+      name:
+        type: string
+
   TextPrompt:
     extends: BasePrompt
     properties:
@@ -135,4 +157,4 @@ types:
   ChatPrompt:
     extends: BasePrompt
     properties:
-      prompt: list<ChatMessage>
+      prompt: list<ChatMessageWithPlaceholders>

fern/apis/server/definition/scim.yml

@@ -0,0 +1,199 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  commons: ./commons.yml
+
+service:
+  auth: true
+  base-path: /api/public/scim
+  endpoints:
+    getServiceProviderConfig:
+      docs: Get SCIM Service Provider Configuration (requires organization-scoped API key)
+      method: GET
+      path: /ServiceProviderConfig
+      response: ServiceProviderConfig
+
+    getResourceTypes:
+      docs: Get SCIM Resource Types (requires organization-scoped API key)
+      method: GET
+      path: /ResourceTypes
+      response: ResourceTypesResponse
+
+    getSchemas:
+      docs: Get SCIM Schemas (requires organization-scoped API key)
+      method: GET
+      path: /Schemas
+      response: SchemasResponse
+
+    listUsers:
+      docs: List users in the organization (requires organization-scoped API key)
+      method: GET
+      path: /Users
+      request:
+        name: ListUsersRequest
+        query-parameters:
+          filter:
+            docs: Filter expression (e.g. userName eq "value")
+            type: optional<string>
+          startIndex:
+            docs: 1-based index of the first result to return (default 1)
+            type: optional<integer>
+          count:
+            docs: Maximum number of results to return (default 100)
+            type: optional<integer>
+      response: ScimUsersListResponse
+
+    createUser:
+      docs: Create a new user in the organization (requires organization-scoped API key)
+      method: POST
+      path: /Users
+      request:
+        name: CreateUserRequest
+        body:
+          properties:
+            userName:
+              docs: User's email address (required)
+              type: string
+            name:
+              docs: User's name information
+              type: ScimName
+            emails:
+              docs: User's email addresses
+              type: optional<list<ScimEmail>>
+            active:
+              docs: Whether the user is active
+              type: optional<boolean>
+            password:
+              docs: Initial password for the user
+              type: optional<string>
+      response: ScimUser
+
+    getUser:
+      docs: Get a specific user by ID (requires organization-scoped API key)
+      method: GET
+      path: /Users/{userId}
+      path-parameters:
+        userId: string
+      response: ScimUser
+
+    deleteUser:
+      docs: Remove a user from the organization (requires organization-scoped API key). Note that this only removes the user from the organization but does not delete the user entity itself.
+      method: DELETE
+      path: /Users/{userId}
+      path-parameters:
+        userId: string
+      response: EmptyResponse
+
+types:
+  ServiceProviderConfig:
+    properties:
+      schemas: list<string>
+      documentationUri: string
+      patch: ScimFeatureSupport
+      bulk: BulkConfig
+      filter: FilterConfig
+      changePassword: ScimFeatureSupport
+      sort: ScimFeatureSupport
+      etag: ScimFeatureSupport
+      authenticationSchemes: list<AuthenticationScheme>
+      meta: ResourceMeta
+
+  ScimFeatureSupport:
+    properties:
+      supported: boolean
+
+  BulkConfig:
+    properties:
+      supported: boolean
+      maxOperations: integer
+      maxPayloadSize: integer
+
+  FilterConfig:
+    properties:
+      supported: boolean
+      maxResults: integer
+
+  ResourceMeta:
+    properties:
+      resourceType: string
+      location: string
+
+  AuthenticationScheme:
+    properties:
+      name: string
+      description: string
+      specUri: string
+      type: string
+      primary: boolean
+
+  ResourceTypesResponse:
+    properties:
+      schemas: list<string>
+      totalResults: integer
+      Resources: list<ResourceType>
+
+  ResourceType:
+    properties:
+      schemas: optional<list<string>>
+      id: string
+      name: string
+      endpoint: string
+      description: string
+      schema: string
+      schemaExtensions: list<SchemaExtension>
+      meta: ResourceMeta
+
+  SchemaExtension:
+    properties:
+      schema: string
+      required: boolean
+
+  SchemasResponse:
+    properties:
+      schemas: list<string>
+      totalResults: integer
+      Resources: list<SchemaResource>
+
+  SchemaResource:
+    properties:
+      id: string
+      name: string
+      description: string
+      attributes: list<unknown>
+      meta: ResourceMeta
+
+  ScimUsersListResponse:
+    properties:
+      schemas: list<string>
+      totalResults: integer
+      startIndex: integer
+      itemsPerPage: integer
+      Resources: list<ScimUser>
+
+  ScimUser:
+    properties:
+      schemas: list<string>
+      id: string
+      userName: string
+      name: ScimName
+      emails: list<ScimEmail>
+      meta: UserMeta
+
+  UserMeta:
+    properties:
+      resourceType: string
+      created: optional<string>
+      lastModified: optional<string>
+
+  ScimName:
+    properties:
+      formatted: optional<string>
+
+  ScimEmail:
+    properties:
+      primary: boolean
+      value: string
+      type: string
+
+  EmptyResponse:
+    docs: Empty response for 204 No Content responses
+    properties: {}

fern/apis/server/definition/score-v2.yml

@@ -0,0 +1,112 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fern-api/fern/main/fern.schema.json
+imports:
+  pagination: ./utils/pagination.yml
+  commons: ./commons.yml
+service:
+  auth: true
+  base-path: /api/public/v2
+  endpoints:
+    get:
+      docs: Get a list of scores (supports both trace and session scores)
+      method: GET
+      path: /scores
+      request:
+        name: GetScoresRequest
+        query-parameters:
+          page:
+            type: optional<integer>
+            docs: Page number, starts at 1.
+          limit:
+            type: optional<integer>
+            docs: Limit of items per page. If you encounter api issues due to too large page sizes, try to reduce the limit.
+          userId:
+            type: optional<string>
+            docs: Retrieve only scores with this userId associated to the trace.
+          name:
+            type: optional<string>
+            docs: Retrieve only scores with this name.
+          fromTimestamp:
+            type: optional<datetime>
+            docs: Optional filter to only include scores created on or after a certain datetime (ISO 8601)
+          toTimestamp:
+            type: optional<datetime>
+            docs: Optional filter to only include scores created before a certain datetime (ISO 8601)
+          environment:
+            type: optional<string>
+            allow-multiple: true
+            docs: Optional filter for scores where the environment is one of the provided values.
+          source:
+            type: optional<commons.ScoreSource>
+            docs: Retrieve only scores from a specific source.
+          operator:
+            type: optional<string>
+            docs: Retrieve only scores with <operator> value.
+          value:
+            type: optional<double>
+            docs: Retrieve only scores with <operator> value.
+          scoreIds:
+            type: optional<string>
+            docs: Comma-separated list of score IDs to limit the results to.
+          configId:
+            type: optional<string>
+            docs: Retrieve only scores with a specific configId.
+          queueId:
+            type: optional<string>
+            docs: Retrieve only scores with a specific annotation queueId.
+          dataType:
+            type: optional<commons.ScoreDataType>
+            docs: Retrieve only scores with a specific dataType.
+          traceTags:
+            type: optional<string>
+            allow-multiple: true
+            docs: Only scores linked to traces that include all of these tags will be returned.
+      response: GetScoresResponse
+    get-by-id:
+      docs: Get a score (supports both trace and session scores)
+      method: GET
+      path: /scores/{scoreId}
+      path-parameters:
+        scoreId:
+          type: string
+          docs: The unique langfuse identifier of a score
+      response: commons.Score
+
+types:
+  GetScoresResponseTraceData:
+    properties:
+      userId:
+        type: optional<string>
+        docs: The user ID associated with the trace referenced by score
+      tags:
+        type: optional<list<string>>
+        docs: A list of tags associated with the trace referenced by score
+      environment:
+        type: optional<string>
+        docs: The environment of the trace referenced by score
+
+  GetScoresResponseDataNumeric:
+    extends: commons.NumericScore
+    properties:
+      trace: optional<GetScoresResponseTraceData>
+
+  GetScoresResponseDataCategorical:
+    extends: commons.CategoricalScore
+    properties:
+      trace: optional<GetScoresResponseTraceData>
+
+  GetScoresResponseDataBoolean:
+    extends: commons.BooleanScore
+    properties:
+      trace: optional<GetScoresResponseTraceData>
+
+  GetScoresResponseData:
+    discriminant: dataType
+    union:
+      NUMERIC: GetScoresResponseDataNumeric
+      CATEGORICAL: GetScoresResponseDataCategorical
+      BOOLEAN: GetScoresResponseDataBoolean
+
+  GetScoresResponse:
+    properties:
+      data: list<GetScoresResponseData>
+      meta: pagination.MetaResponse

fern/apis/server/definition/score.yml

@@ -7,73 +7,13 @@ service:
   base-path: /api/public
   endpoints:
     create:
-      docs: Create a score
+      docs: Create a score (supports both trace and session scores)
       method: POST
       path: /scores
       request: CreateScoreRequest
       response: CreateScoreResponse
-    get:
-      docs: Get a list of scores
-      method: GET
-      path: /scores
-      request:
-        name: GetScoresRequest
-        query-parameters:
-          page:
-            type: optional<integer>
-            docs: Page number, starts at 1.
-          limit:
-            type: optional<integer>
-            docs: Limit of items per page. If you encounter api issues due to too large page sizes, try to reduce the limit.
-          userId:
-            type: optional<string>
-            docs: Retrieve only scores with this userId associated to the trace.
-          name:
-            type: optional<string>
-            docs: Retrieve only scores with this name.
-          fromTimestamp:
-            type: optional<datetime>
-            docs: Optional filter to only include scores created on or after a certain datetime (ISO 8601)
-          toTimestamp:
-            type: optional<datetime>
-            docs: Optional filter to only include scores created before a certain datetime (ISO 8601)
-          source:
-            type: optional<commons.ScoreSource>
-            docs: Retrieve only scores from a specific source.
-          operator:
-            type: optional<string>
-            docs: Retrieve only scores with <operator> value.
-          value:
-            type: optional<double>
-            docs: Retrieve only scores with <operator> value.
-          scoreIds:
-            type: optional<string>
-            docs: Comma-separated list of score IDs to limit the results to.
-          configId:
-            type: optional<string>
-            docs: Retrieve only scores with a specific configId.
-          queueId:
-            type: optional<string>
-            docs: Retrieve only scores with a specific annotation queueId.
-          dataType:
-            type: optional<commons.ScoreDataType>
-            docs: Retrieve only scores with a specific dataType.
-          traceTags:
-            type: optional<list<string>>
-            allow-multiple: true
-            docs: Only scores linked to traces that include all of these tags will be returned.
-      response: GetScoresResponse
-    get-by-id:
-      docs: Get a score
-      method: GET
-      path: /scores/{scoreId}
-      path-parameters:
-        scoreId:
-          type: string
-          docs: The unique langfuse identifier of a score
-      response: commons.Score
     delete:
-      docs: Delete a score
+      docs: Delete a score (supports both trace and session scores)
       method: DELETE
       path: /scores/{scoreId}
       path-parameters:
@@ -84,13 +24,19 @@ types:
   CreateScoreRequest:
     properties:
       id: optional<string>
-      traceId: string
+      traceId: optional<string>
+      sessionId: optional<string>
+      observationId: optional<string>
+      datasetRunId: optional<string>
       name: string
       value:
         type: commons.CreateScoreValue
         docs: The value of the score. Must be passed as string for categorical scores, and numeric for boolean and numeric scores. Boolean score values must equal either 1 or 0 (true or false)
-      observationId: optional<string>
       comment: optional<string>
+      metadata: optional<unknown>
+      environment:
+        type: optional<string>
+        docs: The environment of the score. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
       dataType:
         type: optional<commons.ScoreDataType>
         docs: The data type of the score. When passing a configId this field is inferred. Otherwise, this field must be passed or will default to numeric.
@@ -113,10 +59,12 @@ types:
           dataType: "NUMERIC"
           configId: "9203-4567-89ab-cdef"
           traceId: "cdef-1234-5678-90ab"
+          environment: "test"
       - value:
           name: "toxicity"
           value: "not toxic"
           traceId: "cdef-1234-5678-90ab"
+          environment: "production"
       - value:
           name: "correctness"
           value: "partially correct"
@@ -139,38 +87,3 @@ types:
       id:
         type: string
         docs: The id of the created object in Langfuse
-  GetScoresResponseTraceData:
-    properties:
-      userId:
-        type: optional<string>
-        docs: The user ID associated with the trace referenced by score
-      tags:
-        type: optional<list<string>>
-        docs: A list of tags associated with the trace referenced by score
-
-  GetScoresResponseDataNumeric:
-    extends: commons.NumericScore
-    properties:
-      trace: GetScoresResponseTraceData
-
-  GetScoresResponseDataCategorical:
-    extends: commons.CategoricalScore
-    properties:
-      trace: GetScoresResponseTraceData
-
-  GetScoresResponseDataBoolean:
-    extends: commons.BooleanScore
-    properties:
-      trace: GetScoresResponseTraceData
-
-  GetScoresResponseData:
-    discriminant: dataType
-    union:
-      NUMERIC: GetScoresResponseDataNumeric
-      CATEGORICAL: GetScoresResponseDataCategorical
-      BOOLEAN: GetScoresResponseDataBoolean
-
-  GetScoresResponse:
-    properties:
-      data: list<GetScoresResponseData>
-      meta: pagination.MetaResponse

fern/apis/server/definition/sessions.yml

@@ -25,6 +25,10 @@ service:
           toTimestamp:
             type: optional<datetime>
             docs: Optional filter to only include sessions created before a certain datetime (ISO 8601)
+          environment:
+            type: optional<string>
+            allow-multiple: true
+            docs: Optional filter for sessions where the environment is one of the provided values.
       response: PaginatedSessions
     get:
       docs: Get a session. Please note that `traces` on this endpoint are not paginated, if you plan to fetch large sessions, consider `GET /api/public/traces?sessionId=<sessionId>`

fern/apis/server/definition/trace.yml

@@ -15,6 +15,15 @@ service:
           type: string
           docs: The unique langfuse identifier of a trace
       response: commons.TraceWithFullDetails
+    delete:
+      docs: Delete a specific trace
+      method: DELETE
+      path: /traces/{traceId}
+      path-parameters:
+        traceId:
+          type: string
+          docs: The unique langfuse identifier of the trace to delete
+      response: DeleteTraceResponse
     list:
       docs: Get list of traces
       method: GET
@@ -50,13 +59,35 @@ service:
           release:
             type: optional<string>
             docs: Optional filter to only include traces with a certain release.
+          environment:
+            type: optional<string>
+            allow-multiple: true
+            docs: Optional filter for traces where the environment is one of the provided values.
+          fields:
+            type: optional<string>
+            docs: "Comma-separated list of fields to include in the response. Available field groups are 'core' (always included), 'io' (input, output, metadata), 'scores', 'observations', 'metrics'. If not provided, all fields are included. Example: 'core,scores,metrics'"
       response: Traces
+    deleteMultiple:
+      docs: Delete multiple traces
+      method: DELETE
+      path: /traces
+      request:
+        name: DeleteTracesRequest
+        body:
+          properties:
+            traceIds:
+              type: list<string>
+              docs: List of trace IDs to delete
+      response: DeleteTraceResponse
 
 types:
   Traces:
     properties:
       data: list<commons.TraceWithDetails>
       meta: pagination.MetaResponse
+  DeleteTraceResponse:
+    properties:
+      message: string
   Sort:
     properties:
       id: string

fern/apis/server/generators.yml

@@ -1,12 +1,14 @@
+# yaml-language-server: $schema=https://schema.buildwithfern.dev/generators-yml.json
 default-group: local
 groups:
   local:
     generators:
       - name: fernapi/fern-openapi
-        version: 0.0.31
+        version: 0.1.7
         output:
           location: local-file-system
           path: ../../../web/public/generated/api
+
       - name: fernapi/fern-python-sdk
         version: 2.16.0
         output:
@@ -19,28 +21,32 @@ groups:
           pydantic_config:
             require_optional_fields: false
             use_str_enums: false
+
+      # - name: fernapi/fern-java-sdk
+      #   version: 2.20.1
+      #   output:
+      #     location: local-file-system
+      #     path: ../../../../langfuse-java/src/main/java/com/langfuse/client/
+      #   config:
+      #     client-class-name: LangfuseClient
+
+      - name: fernapi/fern-typescript-node-sdk
+        version: 2.6.1
+        output:
+          location: local-file-system
+          path: ../../../generated/typescript
+        config:
+          namespaceExport: LangfuseAPI
+          outputSourceFiles: true
+          skipResponseValidation: true
+          fetchSupport: native
+          formDataSupport: Node18
+          fileResponseType: binary-response
+          streamType: web
+          omitFernHeaders: true
+
       - name: fernapi/fern-postman
         version: 0.0.45
         output:
           location: local-file-system
           path: ../../../web/public/generated/postman
-  # published:
-  #   generators:
-  #     - name: fernapi/fern-python-sdk
-  #       version: 0.3.7
-  #       output:
-  #         location: pypi
-  #         url: pypi.buildwithfern.com
-  #         package-name: finto-fern-langfuse
-  #       config:
-  #         namespaceExport: Langfuse
-  #         allowCustomFetcher: true
-  #     - name: fernapi/fern-typescript-node-sdk
-  #       version: 0.7.1
-  #       output:
-  #         location: npm
-  #         url: npm.buildwithfern.com
-  #         package-name: "@finto-fern/langfuse-node"
-  #       config:
-  #         namespaceExport: Langfuse
-  #         allowCustomFetcher: true

fern/fern.config.json

@@ -1,4 +1,4 @@
 {
-  "organization": "finto",
-  "version": "0.43.7"
-}
+  "organization": "langfuse",
+  "version": "0.56.0"
+}

generated/.gitignore

@@ -1 +0,0 @@
-python/

package.json

@@ -1,6 +1,6 @@
 {
   "name": "langfuse",
-  "version": "3.6.2",
+  "version": "3.96.2",
   "author": "engineering@langfuse.com",
   "license": "MIT",
   "private": true,
@@ -17,26 +17,30 @@
     "db:seed": "turbo run db:seed",
     "db:seed:examples": "turbo run db:seed:examples",
     "nuke": "bash ./scripts/nuke.sh",
-    "dx": "pnpm i && pnpm run infra:dev:prune && pnpm run infra:dev:up --pull always && pnpm --filter=shared run db:reset && pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
-    "dx-f": "pnpm i && pnpm run infra:dev:prune && pnpm run infra:dev:up --pull always && pnpm --filter=shared run db:reset -f && pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
-    "dx:skip-infra": "pnpm i && pnpm --filter=shared run db:reset && pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
+    "dx": "pnpm i && pnpm run infra:dev:prune && pnpm run infra:dev:up --pull always && pnpm --filter=shared run db:reset:test && pnpm --filter=shared run db:reset && pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
+    "dx-f": "pnpm i && pnpm run infra:dev:prune && pnpm run infra:dev:up --pull always && pnpm --filter=shared run db:reset:test && pnpm --filter=shared run db:reset -f && SKIP_CONFIRM=1 pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
+    "dx:skip-infra": "pnpm i && pnpm --filter=shared run db:reset:test && pnpm --filter=shared run db:reset && pnpm --filter=shared run ch:reset && pnpm --filter=shared run db:seed:examples && pnpm run dev",
     "build": "turbo run build",
     "start": "turbo run start",
     "dev": "turbo run dev",
+    "dev:worker": "turbo run dev --filter=worker",
+    "dev:web": "turbo run dev --filter=web",
+    "dev:web-turbo": "turbo run dev --filter=web -- --turbo",
     "lint": "turbo run lint",
+    "format": "prettier --write \"**/*.{js,jsx,ts,tsx,css}\" --experimental-cli",
+    "format:check": "prettier --check \"**/*.{js,jsx,ts,tsx,css}\" --experimental-cli",
     "test": "turbo run test",
-    "models:migrate": "turbo run models:migrate",
     "release": "dotenv -e ../.env -- release-it",
     "prepare": "husky"
   },
   "devDependencies": {
-    "@release-it/bumper": "^6.0.1",
+    "@release-it/bumper": "^7.0.5",
     "braces": "3.0.3",
     "dotenv-cli": "^7.4.2",
     "husky": "^9.0.11",
-    "prettier": "^3.3.3",
-    "release-it": "^17.3.0",
-    "turbo": "^1.13.4"
+    "prettier": "^3.6.2",
+    "release-it": "^19.0.3",
+    "turbo": "^2.5.5"
   },
   "release-it": {
     "git": {
@@ -84,8 +88,14 @@
   "packageManager": "pnpm@9.5.0",
   "pnpm": {
     "overrides": {
-      "jsonpath-plus": "10.0.7",
-      "nanoid": "^3.3.8"
+      "nanoid": "^3.3.8",
+      "katex": "^0.16.21",
+      "tar-fs": "^2.1.2",
+      "rollup@^4.0.0": "^4.22.4",
+      "@types/node-fetch": "^2.6.13"
+    },
+    "patchedDependencies": {
+      "next-auth@4.24.11": "patches/next-auth@4.24.11.patch"
     }
   }
 }

packages/config-eslint/library.js

@@ -35,5 +35,13 @@ module.exports = {
     {
       files: ["*.js?(x)", "*.ts?(x)"],
     },
+    {
+      files: ["*.ts", "*.mts", "*.cts", "*.tsx"],
+      // no-undef doesn't make sense in TS, see:
+      // https://typescript-eslint.io/troubleshooting/faqs/eslint/#i-get-errors-from-the-no-undef-rule-about-global-variables-not-being-defined-even-though-there-are-no-typescript-errors
+      rules: {
+        "no-undef": "off",
+      },
+    },
   ],
 };

packages/config-eslint/package.json

@@ -13,7 +13,7 @@
     "@vercel/style-guide": "^6.0.0",
     "eslint-config-next": "^14.2.15",
     "eslint-config-prettier": "^9.1.0",
-    "eslint-config-turbo": "^1.13.4",
+    "eslint-config-turbo": "^2.5.5",
     "eslint-plugin-only-warn": "^1.1.0",
     "typescript": "^5.4.5"
   }

packages/shared/clickhouse/migrations/clustered/0007_add_event_log.down.sql

@@ -0,0 +1 @@
+DROP TABLE event_log ON CLUSTER default;

packages/shared/clickhouse/migrations/clustered/0007_add_event_log.up.sql

@@ -0,0 +1,19 @@
+CREATE TABLE event_log ON CLUSTER default
+(
+    `id`          String,
+    `project_id`  String,
+    `entity_type` String,
+    `entity_id`   String,
+    `event_id`    Nullable(String),
+
+    `bucket_name` String,
+    `bucket_path` String,
+
+    `created_at`  DateTime64(3) DEFAULT now(),
+    `updated_at`  DateTime64(3) DEFAULT now()
+) ENGINE = MergeTree()
+      ORDER BY (
+                project_id,
+                entity_type,
+                entity_id
+          );

packages/shared/clickhouse/migrations/clustered/0008_add_environments_column.down.sql

@@ -0,0 +1,3 @@
+ALTER TABLE traces ON CLUSTER default DROP COLUMN IF EXISTS environment;
+ALTER TABLE observations ON CLUSTER default DROP COLUMN IF EXISTS environment;
+ALTER TABLE scores ON CLUSTER default DROP COLUMN IF EXISTS environment;

packages/shared/clickhouse/migrations/clustered/0008_add_environments_column.up.sql

@@ -0,0 +1,3 @@
+ALTER TABLE traces ON CLUSTER default ADD COLUMN environment LowCardinality(String) DEFAULT 'default' AFTER project_id;
+ALTER TABLE observations ON CLUSTER default ADD COLUMN environment LowCardinality(String) DEFAULT 'default' AFTER project_id;
+ALTER TABLE scores ON CLUSTER default ADD COLUMN environment LowCardinality(String) DEFAULT 'default' AFTER project_id;

packages/shared/clickhouse/migrations/clustered/0009_add_project_environments.down.sql

@@ -0,0 +1,7 @@
+-- Drop materialized views
+DROP VIEW IF EXISTS project_environments_traces_mv ON CLUSTER default;
+DROP VIEW IF EXISTS project_environments_observations_mv ON CLUSTER default;
+DROP VIEW IF EXISTS project_environments_scores_mv ON CLUSTER default;
+
+-- Drop the project_environments table
+DROP TABLE IF EXISTS project_environments ON CLUSTER default;

packages/shared/clickhouse/migrations/clustered/0009_add_project_environments.up.sql

@@ -0,0 +1,30 @@
+-- Create the project_environments table with AggregatingMergeTree engine
+CREATE TABLE project_environments ON CLUSTER default (
+    `project_id` String,
+    `environments` SimpleAggregateFunction(groupUniqArrayArray, Array(String))
+) ENGINE = ReplicatedAggregatingMergeTree
+ORDER BY (project_id);
+
+-- Create materialized view for traces
+CREATE MATERIALIZED VIEW project_environments_traces_mv ON CLUSTER default TO project_environments AS
+SELECT
+    project_id,
+    groupUniqArray(environment) AS environments
+FROM traces
+GROUP BY project_id;
+
+-- Create materialized view for observations
+CREATE MATERIALIZED VIEW project_environments_observations_mv ON CLUSTER default TO project_environments AS
+SELECT
+    project_id,
+    groupUniqArray(environment) AS environments
+FROM observations
+GROUP BY project_id;
+
+-- Create materialized view for scores
+CREATE MATERIALIZED VIEW project_environments_scores_mv ON CLUSTER default TO project_environments AS
+SELECT
+    project_id,
+    groupUniqArray(environment) AS environments
+FROM scores
+GROUP BY project_id;

packages/shared/clickhouse/migrations/clustered/0010_add_metadata_column_on_scores.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default DROP COLUMN IF EXISTS metadata;

packages/shared/clickhouse/migrations/clustered/0010_add_metadata_column_on_scores.up.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default ADD COLUMN metadata Map(LowCardinality(String), String) AFTER comment;

packages/shared/clickhouse/migrations/clustered/0011_add_blob_storage_file_log.down.sql

@@ -0,0 +1 @@
+DROP TABLE blob_storage_file_log ON CLUSTER default;

packages/shared/clickhouse/migrations/clustered/0011_add_blob_storage_file_log.up.sql

@@ -0,0 +1,21 @@
+CREATE TABLE blob_storage_file_log ON CLUSTER default (
+    `id`          String,
+    `project_id`  String,
+    `entity_type` String,
+    `entity_id`   String,
+    `event_id`    String,
+
+    `bucket_name` String,
+    `bucket_path` String,
+
+    `created_at`  DateTime64(3) DEFAULT now(),
+    `updated_at`  DateTime64(3) DEFAULT now(),
+    event_ts DateTime64(3),
+    is_deleted UInt8,
+) ENGINE = ReplicatedReplacingMergeTree(event_ts, is_deleted)
+      ORDER BY (
+                project_id,
+                entity_type,
+                entity_id,
+                event_id
+          );

packages/shared/clickhouse/migrations/clustered/0012_add_session_id_column_scores.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default DROP COLUMN IF EXISTS session_id SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0012_add_session_id_column_scores.up.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default ADD COLUMN session_id Nullable(String) AFTER trace_id SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0013_drop_scores_trace_id_index.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE scores ON CLUSTER default ADD INDEX IF NOT EXISTS idx_project_trace_observation (project_id, trace_id, observation_id) TYPE bloom_filter(0.001) GRANULARITY 1 SETTINGS mutations_sync = 2;
+ALTER TABLE scores ON CLUSTER default MATERIALIZE INDEX IF EXISTS idx_project_trace_observation SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0013_drop_scores_trace_id_index.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE scores ON CLUSTER default DROP INDEX IF EXISTS idx_project_trace_observation SETTINGS mutations_sync = 2;
+

packages/shared/clickhouse/migrations/clustered/0014_scores_modify_nullable_trace_id_column.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default MODIFY COLUMN trace_id Nullable(String) SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0014_scores_modify_nullable_trace_id_column.up.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default MODIFY COLUMN trace_id Nullable(String) SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0015_add_scores_trace_index.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default DROP INDEX IF EXISTS idx_project_trace_observation SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0015_add_scores_trace_index.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE scores ON CLUSTER default ADD INDEX IF NOT EXISTS idx_project_trace_observation (project_id, trace_id, observation_id) TYPE bloom_filter(0.001) GRANULARITY 1 SETTINGS mutations_sync = 2;
+ALTER TABLE scores ON CLUSTER default MATERIALIZE INDEX IF EXISTS idx_project_trace_observation SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0016_add_scores_session_index.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default DROP INDEX IF EXISTS idx_project_session SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0016_add_scores_session_index.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE scores ON CLUSTER default ADD INDEX IF NOT EXISTS idx_project_session (project_id, session_id) TYPE bloom_filter(0.001) GRANULARITY 1 SETTINGS mutations_sync = 2;
+ALTER TABLE scores ON CLUSTER default MATERIALIZE INDEX IF EXISTS idx_project_session SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0017_add_run_id_column_scores.down.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default DROP COLUMN IF EXISTS dataset_run_id SETTINGS mutations_sync = 2;

packages/shared/clickhouse/migrations/clustered/0017_add_run_id_column_scores.up.sql

@@ -0,0 +1 @@
+ALTER TABLE scores ON CLUSTER default ADD COLUMN dataset_run_id Nullable(String) AFTER session_id SETTINGS mutations_sync = 2;