{"uid":"cap_WhKPQAx_LJOOHgTK14_aR","slug":"axongate-claim-verification-f8f6360b","name":"AxonGate Claim Verification","description":"Fact-check one claim against live web sources (or URLs you supply). Returns a verdict (supported, refuted, mixed, insufficient), a confidence score and supporting or contradicting quotes that are checked verbatim against the fetched pages. Use it before an agent repeats a claim.","url":"https://api.axongate.one/v1/verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"urls":{"type":"array","items":{"type":"string"},"description":"Optional source URLs to check against instead of searching (max 5)."},"claim":{"type":"string","description":"One factual claim to check."},"max_sources":{"type":"integer","description":"Sources to read, 1-5 (default 4)."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_H7ClT5hfKpdQq4_9KZIzq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fact-checks a single claim against live web sources or supplied URLs, returning a verdict, confidence score, and verbatim supporting/contradicting quotes.","exampleAgentPrompt":"Can you fact-check this claim for me: 'The Eiffel Tower is taller than the Empire State Building' — search up to 4 live web sources and tell me if it's supported, refuted, or mixed, and give me the verbatim quotes that back it up?","exampleUseCases":[{"title":"Verifying a viral statistic before sharing","prompt":"Before I repost this, can you fact-check the claim that 'over 90% of plastic ever produced has never been recycled'? Check up to 5 sources and tell me if it's supported, refuted, or mixed, and show me the exact quotes."},{"title":"Confirming a quote attribution","prompt":"Did Elon Musk actually say 'I think it is possible for ordinary people to choose to be extraordinary'? Fact-check that quote against live web sources and give me a confidence score."},{"title":"Validating a claim against specific sources","prompt":"I have two URLs I trust — can you check them to see if the claim that 'coffee reduces the risk of type 2 diabetes' is supported or contradicted? Use only those two sources and pull the verbatim evidence."}],"resultDescription":"Returns a verdict string (one of: supported, refuted, mixed, insufficient), a confidence score between 0 and 1, and an array of verbatim quotes from the fetched pages that either support or contradict the claim, along with the source URLs they were drawn from.","failureModes":["Claim is too vague or ambiguous for any source to address — verdict returns 'insufficient' with low confidence","Supplied URLs are inaccessible, paywalled, or return errors — falls back to web search or returns insufficient","Claim contains multiple sub-claims that conflict — may return 'mixed' even when one part is clearly true","Live web sources have changed since the claim was made — historical claims may receive incorrect verdicts","max_sources set to 1 may yield insufficient evidence for a reliable verdict"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to validate a specific factual claim before repeating or publishing it, especially when verbatim evidence and a structured verdict are required. Prefer it over generic web search when you need a binary or graded truth assessment with citation-level proof. It is particularly suited for journalism, research, compliance, and content moderation workflows where accountability for accuracy matters. Use it over a general Q&A endpoint when the goal is verification rather than answering a question.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T12:31:44.586Z","isFirstParty":false,"canonicalSlug":"axongate-claim-verification-f8f6360b"}