SDKs

Farcaster ships Go and TypeScript SDKs (sdk/go/, sdk/ts/), generated from the same x402types OpenAPI contract the gateway and facilitator speak — so a client can never drift from the wire format the servers actually implement.

Both SDKs are early: they re-export the generated wire types today, with client methods landing as the SDKs mature. A generated reference (from Go doc comments and TS types) is a fast-follow once there’s a client surface to document.