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Richard SolomouandGitHub 22be64eb18 docs: add AI provider integration examples (#3263 )

* feat: Add AI provider integration examples

Add self-contained examples for each AI provider supported by @posthog/ai:
- OpenAI (Chat Completions, Responses, streaming, embeddings, transcription, image generation)
- Anthropic (chat, streaming)
- Google Gemini (chat, streaming, image generation)
- Vercel AI SDK (generateText, streamText, generateObject, streamObject, Anthropic, Google backends)
- LangChain (callback handler)
- Mastra (manual instrumentation workflow)
- OpenTelemetry (PostHogTraceExporter)

Each example directory follows the existing example-* convention with its
own package.json, pnpm-workspace.yaml, tsconfig.json, and README. Files
are designed to be copy-pasted by users as starting points.

* fix: use subpath imports for @posthog/ai

Use provider-specific subpath imports (e.g. @posthog/ai/openai instead
of @posthog/ai) to avoid pulling in the OTEL dependency which fails at
import time when @opentelemetry/exporter-trace-otlp-http is not installed.

* fix: fix image gen, transcription, mastra, and vercel middleware

- Use images.generate API instead of responses API for image generation
- Gracefully skip transcription when audio file is missing
- Update Mastra to v1 with correct model ID and execute signature
- Fix vercel middleware crash when result.content is undefined

* revert: remove vercel middleware fix from examples branch

Moving this fix to a separate PR.

* Add comment about incomplete tool-calling loop in examples

2026-03-20 14:22:45 +02:00

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OpenAI + PostHog AI Examples

Track OpenAI API calls with PostHog.

Setup

pnpm install
cp .env.example .env
# Fill in your API keys in .env

Examples

chat-completions.ts - Chat Completions API with tool calling
chat-completions-streaming.ts - Chat Completions with streaming
responses.ts - Responses API with tool calling
responses-streaming.ts - Responses API with streaming
embeddings.ts - Text embeddings
transcription.ts - Audio transcription (Whisper)
image-generation.ts - Image generation via Responses API

Run

source .env
npx tsx chat-completions.ts
npx tsx responses-streaming.ts

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OpenAI + PostHog AI Examples

Setup

Examples

Run

670 B

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