{"uid":"cap_4HzqCWD4y4kj18qXJ49t_","slug":"arch-tools-fact-check-8a37b467","name":"Arch Tools Fact-Check","description":"Arch Tools — fact-check","url":"https://archtools.dev/v1/tools/fact-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"claim":{"type":"string","description":"The claim or statement to verify"},"context":{"type":"string","description":"Additional context about the claim"}}},"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_lkJRpdUxwBHpdf0YuOMLI","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":"Verifies a claim or statement for factual accuracy, returning a fact-check result with supporting analysis","exampleAgentPrompt":"Can you fact-check this claim: 'The Great Wall of China is visible from space with the naked eye'? Add context that this is a commonly repeated historical assertion.","exampleUseCases":[{"title":"Verifying viral social media claims","prompt":"I keep seeing people share that 'humans only use 10% of their brains' — can you fact-check that claim for me?"},{"title":"Checking news headline accuracy","prompt":"Fact-check this headline claim for me: 'Coffee consumption has been shown to reduce the risk of Alzheimer's disease by 65%' — I want to know if there's any truth to it."},{"title":"Validating statistics in a report","prompt":"Before I publish this report, can you verify this statistic: 'The global electric vehicle market grew by 400% between 2018 and 2023'?"}],"resultDescription":"A JSON object containing the fact-check result for the submitted claim, likely including a verdict (true/false/misleading/unverifiable), confidence level, and supporting analysis or explanation of why the claim is accurate or inaccurate.","failureModes":["Missing required 'claim' field returns a validation error","Ambiguous or extremely vague claims may return low-confidence or unverifiable verdicts","Claims about very recent events may return insufficient data errors","Overly long or complex claims may exceed input limits","Network timeouts on slow connections"],"whenToPreferThis":"Choose this endpoint when you need automated, pay-per-use fact-checking without setting up a dedicated misinformation API. It is ideal for agents that need to verify individual claims on-demand, especially when context can be provided alongside the claim to improve accuracy. Best suited for checking discrete, self-contained statements rather than full documents.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:49:51.430Z","isFirstParty":false}