API endpoints
Authentication: pass your API key in the
x-api-key header. Request a key. Pin a version with x-api-version: 2026-04.blanc — see API versioning.
Key endpoints
Supported chains
See Supported chains for the full list with token addresses.Account types
Transaction path
The default transaction path is Warp (native relay). ERC-4337 userops are opt-in.Common error codes
All non-2xx responses share the envelope{ code, message, traceId, details? }. Switch on code.
See Error handling and the versioning guide for the full list.
Intent status values
See Tracking intents for more details on the lifecycle.
SDK install
Useful links
- Dashboard for API keys and sponsorship config
- GitHub examples for runnable code
- Contract addresses for all deployments