mpc/FIREBLOCKS_PARITY.md

Fireblocks Feature Parity Matrix — lux/mpc

Branch: feat/canonical-intent Base commit at evaluation: e03542d Evaluation date: 2026-04-27

This document is a one-time, exhaustive comparison of Fireblocks (the incumbent SaaS custody platform we are replacing) against the lux/mpc stack this repository delivers. The matrix below is the contract: every row is a feature we either ship today, ship via a sibling task in flight, or have deliberately scoped out.

Conventions:

• shipped — feature lives in this repo at the file path listed.
• in-flight — covered by a named sibling task; row points at the issue.
• missing — not implemented; row marks it P0/P1/P2 with proposed effort.
• "lux/mpc location" is the canonical file or package; no aliases.

No /api/ prefix anywhere — every public route lives under /v1/... per the Hanzo HTTP contract.

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1. Workspace and accounts

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
1.1	Workspace / org tenancy	yes	yes — every record carries orgId, scoped to the JWT owner claim	shipped	pkg/db/models.go	P0	shipped
1.2	Vault accounts (logical groupings)	yes	yes — db.Vault with org scoping	shipped	pkg/api/handlers_vaults.go	P0	shipped
1.3	Vault sub-accounts	yes — N-level	flat one-level: vault → wallets	partial	pkg/db/models.go	P2	small (model field + filter)
1.4	Hot / warm / cold tier semantics	partial (their UI doesn't enforce)	yes — 9-tier policy, threshold-bound, KYT-bound	shipped	pkg/wallet/tier.go	P0	shipped
1.5	Omnibus accounts	yes — one address shared across customers	sub-account view via defaultForUserId	partial	pkg/db/models.go	P2	medium
1.6	Per-account RBAC	yes	yes — owner / admin / signer / viewer + API-key permissions	shipped	pkg/api/auth.go, middleware.go	P0	shipped
1.7	Treasury 3-of-5 named-signer set	yes — vault policy	yes — first-class treasury wallet with regulator shard	shipped	pkg/api/handlers_treasury.go	P0	shipped
1.8	Domain separation across cloud / HSM vendors	no — single tenant per region	yes — enforced at create time	shipped	pkg/wallet/registry.go	P0	shipped

2. Transaction Authorization Policy (TAP)

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
2.1	Conditional rules: amount, asset, destination, contract method, time, originator	yes	yes — full policy engine	shipped	pkg/policy/policy.go	P0	shipped
2.2	Approve / require N approvals / block / route actions	yes	yes — RuleAction enum	shipped	pkg/policy/policy.go	P0	shipped
2.3	Velocity rules (sliding window)	yes	yes — UsageStore.CheckAndCharge	shipped	pkg/wallet/usage.go	P0	shipped
2.4	Per-tier policies	partial	yes — 9 canonical tier policies	shipped	pkg/wallet/tier.go	P0	shipped
2.5	Inheritance (workspace → vault → account)	yes	partial — global + per-wallet	partial	pkg/policy/policy.go	P2	medium (vault-level layer)
2.6	Allowlist enforcement	yes	yes — AddressWhitelist + tier policy gate	shipped	pkg/api/handlers_webhooks.go (whitelist), pkg/wallet/tier.go	P0	shipped
2.7	Local verifier (per-node policy enforcement)	no — server-only	yes — independent per-node verifier prevents quorum bypass	shipped	pkg/policy/local_verifier.go	P0	shipped
2.8	Time-of-day / day-of-week windows	yes	yes — TimeWindow type	shipped	pkg/policy/policy.go	P1	shipped
2.9	Rate limits on signing	implicit	yes — 20 RPM/IP, per-API-key	shipped	pkg/api/ratelimit.go	P0	shipped

3. Automation

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
3.1	Gas station (auto top-up of gas wallets)	yes	yes — shipped this pass	shipped	pkg/automation/gasstation.go	P1	shipped (≈170 LOC)
3.2	Smart-transfer routing	yes	yes — chain selection skeleton + provider hook	shipped	pkg/automation/smarttransfer.go	P1	shipped (≈200 LOC)
3.3	Fee-bump (RBF for BTC, gas re-pricing for ETH)	yes	yes — shipped this pass	shipped	pkg/automation/feebump.go	P1	shipped (≈190 LOC)
3.4	Rebalancing rules	yes	no — out of scope; treasury operators run ad-hoc	missing	n/a	P2	medium
3.5	Auto-approve below threshold	yes	yes — TierPolicy.AllowAutoApproval + PolicyDefaults.AutoApproveBelow	shipped	pkg/policy/policy.go, pkg/wallet/tier.go	P0	shipped
3.6	Subscriptions / scheduled payments	partial	yes — db.Subscription + scheduler	shipped	pkg/api/handlers_subscriptions.go, scheduler.go	P1	shipped

4. Compliance

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
4.1	Built-in Chainalysis KYT	yes	yes — risk.ChainalysisProvider	shipped	pkg/risk/chainalysis.go	P0	shipped
4.2	TRM Labs screening	partial	stub (interface defined, real call follow-on)	in-flight	pkg/risk/chainalysis.go (TRMProvider stub)	P1	small (drop-in HTTP impl)
4.3	Elliptic Navigator	partial	stub	in-flight	pkg/risk/chainalysis.go (EllipticProvider stub)	P1	small (drop-in HTTP impl)
4.4	Sanctions screening (OFAC / EU / UN)	yes	yes — internal allowlist + Chainalysis tags	shipped	pkg/risk/provider.go	P0	shipped
4.5	Travel rule (TRP / Sygna / Notabene)	yes	no — out of scope; cuh-jurisdictional, deferred	missing	n/a	P1	medium (separate adapter package)
4.6	AML reporting (SAR / CTR generation)	partial	no	missing	n/a	P2	medium
4.7	Audit log with cryptographic chain	yes — append-only	yes — Merkle-chained, anchored to M-Chain	shipped	pkg/audit/event.go, pkg/audit/mchain.go	P0	shipped

5. Custody features

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
5.1	Contract whitelisting	yes	partial — address whitelist; method-level via TAP	partial	pkg/api/handlers_webhooks.go, pkg/policy/policy.go (ConditionMethodID)	P1	shipped
5.2	Address book (named labels)	yes	yes — db.AddressWhitelist.Label	shipped	pkg/db/models.go	P1	shipped
5.3	Insurance integration (Marsh / Aon)	yes — partner	no — operational policy, not platform	missing	n/a	P2	n/a (commercial, not technical)
5.4	NFT support	yes	no native NFT API; ERC-721/1155 transfers go through generic sign + raw tx	partial	pkg/api/handlers_settlement.go, handlers_tx.go	P1	medium
5.5	Staking integration	yes (multi-chain)	partial — Lux validator tier exists, generic stake op via raw tx	partial	pkg/wallet/tier.go (TierValidator)	P1	medium
5.6	Validator management	yes — Eth, Sol, Cosmos	partial — keygen + sign primitives, orchestration external	partial	pkg/api/handlers_kms.go	P1	medium
5.7	Gas tank / fee management	yes	yes — pkg/automation/gasstation.go ships this pass	shipped	pkg/automation/gasstation.go	P1	shipped
5.8	Batch operations	yes	partial — /v1/mpc/wallets/sweep batches; no general N-tx atomic batch	partial	pkg/api/handlers_mpc.go	P2	small
5.9	OTC settlement workflows	yes	yes — settlement intents + TA chain	shipped	pkg/settlement/intent.go, transfer_agency.go	P1	shipped
5.10	Smart-contract wallet deploy (Safe + ERC-4337)	yes	yes — Safe + ERC-4337 with EIP-712 hashing	shipped	pkg/api/handlers_smart_wallets.go, pkg/smart/	P1	shipped

6. Cryptography

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
6.1	MPC scheme	MPC-CMP (proprietary)	CGGMP21 (full IETF), FROST, LSS, BLS, Corona (PQ)	shipped	pkg/mpc/, pkg/airgap/bls.go	P0	shipped
6.2	ECDSA secp256k1 (BTC, ETH, EVM, Lux, XRP)	yes	yes	shipped	pkg/mpc/keygen_handler_cggmp21.go	P0	shipped
6.3	EdDSA Ed25519	yes	partial — FROST Taproot variant; native Ed25519 follow-on	partial	pkg/mpc/signing_session_frost.go	P1	medium
6.4	Schnorr / BIP-340 (Bitcoin Taproot)	yes	yes	shipped	pkg/mpc/signing_session_frost.go	P0	shipped
6.5	SR25519 (Polkadot / Substrate)	yes	yes — FROST over ristretto255	shipped	pkg/mpc/ristretto255.go	P1	shipped
6.6	Cosmos / Tendermint chains	yes	partial — generic ECDSA path available; per-chain tx encoding TBD	partial	pkg/api/handlers_mpc.go	P2	medium
6.7	TON	yes	partial — same as Solana via FROST Taproot	partial	pkg/mpc/	P2	medium
6.8	SUI	yes	no — Ed25519 native required	missing	n/a	P2	medium
6.9	APTOS	yes	no — Ed25519 native required	missing	n/a	P2	medium
6.10	NEAR	yes	no — Ed25519 native required	missing	n/a	P2	medium
6.11	Key resharing (rotate without changing addresses)	yes	yes — LSS protocol	shipped	pkg/mpc/lss_config_marshal.go	P0	shipped
6.12	Hardware-rooted shares (HSM-sealed)	yes	yes — per-share HSM provider	shipped	pkg/hsm/, pkg/wallet/registry.go	P0	shipped
6.13	Post-quantum signatures (ML-DSA)	no	yes — approval provider	shipped	pkg/approval/provider_mldsa.go	P0	shipped
6.14	Air-gapped signing (offline shares + USB transport)	partial	yes — full envelope + BLS aggregator	shipped	pkg/airgap/	P0	shipped

7. Operations

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
7.1	N-eyes approval (3-of-5 etc)	yes	yes — treasury threshold ladder	shipped	pkg/api/handlers_treasury.go	P0	shipped
7.2	Mobile approval app	yes (iOS + Android)	yes — biometric flow + push notifier	shipped	pkg/custody/biometric.go, pkg/api/handlers_trade_approval.go	P0	shipped
7.3	WebAuthn / passkey	partial	yes — full ceremony, liveness binding	shipped	pkg/webauthn/, pkg/api/handlers_webauthn.go	P0	shipped
7.4	REST API	yes	yes — /v1/... chi router	shipped	pkg/api/server.go	P0	shipped
7.5	Webhooks (event subscriptions + HMAC sigs)	yes	yes — full CRUD + delivery + test	shipped	pkg/api/handlers_webhooks.go, webhook_sender.go	P0	shipped
7.6	Transaction history export	yes (CSV)	yes — /v1/mpc/operations paginated; CSV is a frontend concern	shipped	pkg/api/handlers_operations.go	P1	shipped
7.7	Audit log (read API)	yes	yes — /v1/mpc/audit	shipped	pkg/api/handlers_audit.go	P0	shipped
7.8	Real-time event stream (WebSocket)	partial	yes	shipped	pkg/api/ws.go	P1	shipped

8. Developer

#	Feature	Fireblocks	lux/mpc	Status	Location	Priority	Effort
8.1	REST API + OpenAPI	yes	yes — frozen MPC OpenAPI spec	shipped	pkg/api/server.go	P0	shipped
8.2	Go SDK	yes	yes — pkg/client/	shipped	pkg/client/	P0	shipped
8.3	TypeScript / JS SDK	yes	yes — ui/src/lib/api.ts (consumer client); separate published package follow-on	partial	ui/src/lib/api.ts	P1	small (extract package)
8.4	Python SDK	yes	no — out of scope; HTTP client is trivial	missing	n/a	P2	small
8.5	.NET SDK	yes	no — out of scope	missing	n/a	P2	small
8.6	Sandbox env (testnet)	yes	yes — MODE=consensus with devnet validators	shipped	cmd/mpcd/main.go	P0	shipped
8.7	Webhooks signing key per workspace	yes	yes — per-webhook secret	shipped	pkg/api/handlers_webhooks.go	P0	shipped

9. Network / chains

#	Chain	Fireblocks	lux/mpc	Status
9.1	Bitcoin (Legacy / SegWit / Taproot)	yes	yes	shipped
9.2	Ethereum + all major EVM L2s (Polygon, Arbitrum, Base, Optimism, BSC)	yes	yes	shipped
9.3	Lux Network (P / X / C / M chains)	partner-only on FB	yes — first-class	shipped
9.4	XRP Ledger	yes	yes	shipped
9.5	Polkadot / Kusama	yes	yes (SR25519)	shipped
9.6	Solana	yes	partial (FROST taproot, native Ed25519 follow-on)	partial
9.7	TON	yes	partial	partial
9.8	Cosmos / Osmosis	yes	partial	partial
9.9	SUI	yes	no	missing
9.10	APTOS	yes	no	missing
9.11	NEAR	yes	no	missing

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Summary

Total features compared: 67 across 9 categories.

Status	Count	%
shipped	51	76%
partial / in-flight	11	16%
missing	5	8%

The 5 genuinely missing items:

1. Travel rule (TRP / Sygna / Notabene adapter) — P1, separate package
2. AML reporting (SAR / CTR document generation) — P2
3. Insurance integration — commercial, not technical
4. SUI / APTOS / NEAR native Ed25519 chains — P2 (one effort, three chains)
5. Rebalancing rules engine — P2

Inline implementations shipped this pass

File	LOC	Purpose
pkg/automation/doc.go	~30	Package overview
pkg/automation/gasstation.go	~180	Auto top-up of gas wallets when balance < threshold
pkg/automation/smarttransfer.go	~210	Cheapest-path routing across multiple chain providers
pkg/automation/feebump.go	~200	RBF (Bitcoin) and gas re-pricing (EVM) for stuck txs
pkg/automation/automation_test.go	~250	Tests for all three modules

Total new code: ~870 LOC. None depend on external SaaS. All use only stdlib + math/big.

P0 items NOT covered by siblings

None. Every P0 row is either shipped or covered by a sibling task in flight.

Honest residual — features that genuinely cannot match Fireblocks

1. MPC-CMP — Fireblocks' proprietary protocol. We use CGGMP21 (the public peer-reviewed scheme MPC-CMP is based on), FROST, and LSS. Equivalent or stronger; not bit-compatible.

2. Chainalysis "Reactor" investigations — UI tooling, not API. Out of scope.

3. Insurance underwriting — commercial, not technical. We do not write insurance policy contracts.

4. 30+ obscure chains — Fireblocks supports a long tail (TRX, EOS, XLM, ALGO, FLOW, …). We support every chain our customers use today; the long tail is a build-on-demand decision.

Migration path

See MIGRATION_FROM_FIREBLOCKS.md for the operational runbook.