PAY-PER-REQUEST · BASE USDC

Source Evidence API

Find up to five verbatim, question-matched sentences across one to three public HTTPS pages, with source titles and direct URLs for citations and fact-checking workflows. It returns excerpts, not a truth verdict or generated claims.

Single quote: $0.005 USDC on Base for the strongest matching verbatim sentence from one public page. Send a x402 payment to POST /api/evidence/quote.

Full evidence: $0.01 USDC for up to five verbatim excerpts from one to three public pages. Send a x402 payment to POST /api/evidence.

{"question":"What does the page say about reserved example domains?","url":"https://www.iana.org/domains/reserved"}

The quote route returns one sentence from one public page; the full route returns up to five excerpts from one to three. Only public HTTPS pages are accepted. See GET /health and GET /openapi.json for machine-readable details.