{"sample":true,"note":"Static example of what /ai/fact-check returns; not live data and not charged. Call without sample=1 and pay $0.01 with any x402 client for a live result.","tool":"/ai/fact-check","price":"$0.01","example":{"claim":"The x402 protocol uses the HTTP 402 Payment Required status code.","verdict":"supported","explanation":"The protocol's own documentation describes servers answering 402 Payment Required with payment terms [1].","sources":[{"n":1,"title":"x402: an open payment protocol","url":"https://www.x402.org/"}],"model":"@cf/meta/llama-4-scout-17b-16e-instruct","terms":"Results are for the caller's immediate use…"}}