Clutch Hub API Overview
Clutch Hub API bridges applications to the Clutch Node blockchain. It builds unsigned transactions, submits signed transactions, and exposes chain state via GraphQL.
HTTP endpoints
| Endpoint | Method | Description |
|---|---|---|
/health | GET | Liveness check |
/graphql | POST | GraphQL queries and mutations |
/graphql/ws | GET | GraphQL subscriptions (WebSocket) |
There is no REST user registration or login. Authentication is wallet-based JWT via GraphQL generateToken. See Authentication.
Features
- Wallet JWT authentication
- Unsigned transaction generation for the full ride lifecycle
- Signed transaction submission to the node
- GraphQL queries for ride lists and account balance
- GraphQL subscriptions (poll-based snapshots from the node)
- Seq integration for structured logging
- Prometheus metrics sidecar (configurable)
Architecture role
Your App / SDK ──► Hub API (GraphQL) ──► Clutch Node (WebSocket JSON-RPC)
The API never receives private keys. Apps sign transactions client-side and submit raw RLP hex via sendRawTransaction.
Docker
Pull from GHCR. See Docker images for all packages.
docker pull ghcr.io/clutchprotocol/clutch-hub-api:latest
docker run -p 3000:3000 -v $(pwd)/config:/app/config:ro ghcr.io/clutchprotocol/clutch-hub-api:latest
Or use clutch-deploy for the full stack.