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Does not select an amount."}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_x_WyrlBjZSSwQXxGAaWgq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies that specific quotes appear accurately in given source URLs, returning proof of citation validity","exampleAgentPrompt":"Can you verify that this quote — 'The market grew 42% year over year' — actually appears in this article at https://example.com/report-2025 before I cite it in my report?","exampleUseCases":[{"title":"Fact-checking quotes before publishing","prompt":"I'm about to publish a blog post and I want to make sure these three quotes I'm using actually appear word-for-word in their sources. Check that 'AI adoption doubled in 2024' comes from https://techreport.com/ai-stats and 'consumer spending rose sharply' comes from https://econdata.org/q4-2024."},{"title":"Academic citation accuracy check","prompt":"Before I submit my paper, can you confirm that the quote 'neural networks outperformed classical methods by 18%' is genuinely present in https://arxiv.org/abs/2401.12345? I need proof it's accurately cited."},{"title":"Journalism source verification","prompt":"I'm writing a news story — please verify that the quote 'We expect full recovery by Q3' attributed to the CEO actually appears on https://company.com/press-release-2025 and that I'm not misquoting them."}],"resultDescription":"Returns a verification result indicating whether each provided quote was found in the corresponding source URL, along with proof or match details confirming citation accuracy or flagging discrepancies.","failureModes":["URL is inaccessible or returns a non-200 status — verification fails for that source","Quote not found in the page content — returns a mismatch or not-found result","URL content is behind a paywall or login — endpoint cannot retrieve content to verify","Malformed URL or URL exceeding max length — input validation error","More than 5 URLs or 10 quotes submitted — request rejected with schema validation error","Source index out of range (0-4) for a given quote — validation error","Network timeout fetching the remote URL — returns an error for that source"],"whenToPreferThis":"Use this endpoint when an AI agent needs to programmatically verify that specific quoted text actually appears in a given webpage before citing it — ideal for fact-checking pipelines, research assistants, journalism tools, and academic writing aids that need lightweight, per-call citation proof at low cost ($0.01 per call).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T18:41:39.227Z","isFirstParty":false,"canonicalSlug":"agenttoolbox-quote-proof-866a77bd"}