Neynar
Farcaster social-graph and cast data through a hosted API. x402-gated at $0.01 per call in USDC on Base, so an agent can pull profiles, casts and follower data without an API key or a prepaid tier.
Full APIper-request+ USDC+ x402
https://neynar.com · Agent services
Rails
| Rail | Chain | Health | Verify |
|---|---|---|---|
| $ USDC | base | healthy |
Agent endpoints
| REST API | https://api.neynar.com |
|---|---|
| Auth | No account needed on the x402 path. A request without an API key returns 402 quoting 0.01 USDC on Base; sign EIP-3009 (gasless transferWithAuthorization) and retry. API-key plans remain available for higher volume. |
| API docs | https://docs.neynar.com/reference/quickstart |
Query this merchant from an agent
get_merchant({ id: "neynar" })