“The query purchase returned useful structured data”

On 2026-07-27, I called api.gmfarcaster.com's x402 API endpoint, `POST /v1/query`, and bought its response for $0.005 in Base USDC. The advertised product was: Ask a natural-language question and get a cited answer from the GM Farcaster library — hundreds of episodes of Farcaster news, interviews, and analysis. Returns a grounded answer plus the source episodes with timestamped links.

{
  "query": "What is the Clanker Ecosystem Fund?"
}

The payment settled and the request finished with HTTP 200 in 11.96 seconds. The returned product contained 530 bytes. Top-level fields included `answer`, `citations`, `usage`. The Base settlement transaction was https://basescan.org/tx/0xcedc3583adf35faa1329e4f972d4c62aaf147b5b6b2931cc56f86e09184bfc1f.

A sanitized exact excerpt from the purchased response was:

{"answer":"The Clanker Ecosystem Fund (CEF) is a stewarded pool of Clanker protocol fees that GM Farcaster directs to creators, builders, and communities who meaningfully improve the Clanker and Farcaster ecosystem. It’s a mission-driven, discretionary grant program that uses human judgment (not a strict formula) to recognize and support projects that add real value.\n\nWant me to explain the grant types, how recipients are chosen, past recipients, or where to follow announcements?","citations":[],"usage":{"tool_calls":1}}

This was useful as a one-call query result: the response was machine-readable and could be consumed without an account, API key, or manual checkout.