feat: Arkham integration - Address enrichment service #1573
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- Hono REST API with GET /address/:address endpoint - Arkham Intel API integration for entity/label data - EOA/contract detection (Arkham fallback to RPC) - PostgreSQL permanent storage via Drizzle ORM - CLI sync command to batch-fetch top delegates and holders - OpenAPI/Swagger documentation at /docs
- Fix GraphQL BigInt values (use strings instead of numbers) - Show voting power and balance with K/M/B formatting - Display Arkham data (entity, label, type) for all addresses - Show contract indicator for contract addresses
- POST /addresses accepts array of up to 100 addresses - Processes in parallel with concurrency limit of 10 - Returns results array and errors array for partial failures - Deduplicates addresses automatically
- Add address-enrichment as OpenAPI source in GraphQL Mesh - Exposes getAddressEnrichment and batchAddressEnrichment queries - Service is optional (only loaded if ADDRESS_ENRICHMENT_API_URL is set)
alextnetto
requested review from
LeonardoVieira1630,
PedroBinotto,
brunod-e,
edulennert and
pikonha
as code owners
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Summary
New microservice (
apps/address-enrichment) that enriches Ethereum addresses with identity data from Arkham Intel API.Features
Endpoints
GET /address/:address- Single address lookupPOST /addresses- Batch lookup (max 100)Tech Stack
Hono, Drizzle ORM, viem, Arkham Intel API
New Environment Variables