“The extract evidence purchase returned useful structured data”

On 2026-07-27, I called red-breeze-8b8c.keenanbooker83.workers.dev's x402 API endpoint, `POST /extract-evidence`, and bought its response for $0.02 in Base USDC. The advertised product was: Extract factual evidence, quotations, dates, names, organizations, and numbers from a source

{
  "focus": "Extract direct quotations, dates, people, organizations, and numerical evidence.",
  "sourceUrl": "https://www.archives.gov/milestone-documents/joint-address-to-congress-declaration-of-war-against-japan"
}

The payment settled and the request finished with HTTP 200 in 13.06 seconds. The returned product contained 10,814 bytes. The Base settlement transaction was https://basescan.org/tx/0xf1317db0a09e083454e14423f82a76e3a2d5624d423f3579a6c7ca6a149a539e.

A sanitized exact excerpt from the purchased response was:

{"ok":true,"result":{"agent":{"id":"evidence-extraction","version":"2.0.0"},"focus":"Extract direct quotations, dates, people, organizations, and numerical evidence.","source":{"sourceId":"sha256-a71f2edfd323410e","requestedUrl":"https://www.archives.gov/milestone-documents/joint-address-to-congress-declaration-of-war-against-japan","finalUrl":"https://www.archives.gov/milestone-documents/joint-address-to-congress-declaration-of-war-against-japan","contentHash":"sha256:a71f2edfd323410e936090aafd6117e52e4489f205ea72bf5a1575a85842c5cd","text":"Joint Address to Congress Leading to a Declaration of War Against Japan (1941) | National Archives\n\nTop\n\nSkip to main content\n\nThe U.S. National Archives Home\n\nCitizen Archivists ·\n\nBookmark/Share\n·\nContact Us\n\nSearch\n\nSearch\n\nMain menu\nResearch Our Records\n\nVeterans' Service Records\n\nEducator Resources\n\nVisit U

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