{"uid":"cap_gvVWlCF_mKg1uhqUA1GlC","slug":"capi2-evidence-extraction-7f417c9d","name":"capi2 Evidence Extraction","description":"Paid x402 utilities and live intelligence for autonomous agents: hashing/encoding plus public web lookup, domain intelligence, API discovery audit, evidence extraction and x402 health.","url":"https://capi2-demand-tools.onrender.com/v1/evidence/extract","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","format":"uri","description":"Public source URL."},"query":{"type":"string","maxLength":1000,"minLength":2,"description":"Claim, question or evidence terms."},"max_passages":{"type":"integer","default":5,"maximum":10,"minimum":1}}},"responseSchema":{"type":"json","example":{"passages":[{"text":"Example Domain","score":1}],"source_url":"https://example.com","passage_count":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_l9I9Pvu9X-4vleUNCgZeJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a public web URL and extracts the most relevant text passages that support or answer a given claim, question, or evidence query.","exampleAgentPrompt":"Go to https://en.wikipedia.org/wiki/Climate_change and pull out the top 5 passages that best support the claim 'human activity is the primary driver of recent global warming'.","exampleUseCases":[{"title":"Fact-checking a news article","prompt":"Can you go to https://www.bbc.com/news/science-environment-12345678 and extract the 3 most relevant passages that back up the claim 'Arctic ice is shrinking faster than predicted'?"},{"title":"Academic research evidence gathering","prompt":"I need you to fetch https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1234567/ and pull out up to 8 passages that address the question 'does intermittent fasting reduce insulin resistance in adults'?"},{"title":"Competitive claim verification","prompt":"Check https://www.competitor.com/about and extract the top 5 passages that mention or support the claim 'we have the lowest fees in the market' — I want to see exactly what they're asserting."}],"resultDescription":"Returns a list of ranked text passages extracted from the given URL that are most semantically relevant to the query, each with a relevance score, along with the source URL and total passage count returned.","failureModes":["URL is not publicly accessible or returns a non-200 status — extraction fails with an error","URL points to a paywalled, login-required, or bot-blocked page — no content extractable","Query string is too short (under 2 characters) or too long (over 1000 characters) — validation error","max_passages value is out of range (must be 1–10) — validation error","Page contains no parseable text (e.g. pure image, Flash, or heavily JavaScript-rendered) — empty or poor passages returned","Network timeout fetching the remote URL — request fails","Invalid URI format for the url field — schema validation error"],"whenToPreferThis":"Choose this endpoint when you need to extract semantically relevant text passages from a specific known public URL to support, verify, or investigate a claim or question — particularly for fact-checking, research evidence gathering, or auditing web content. Prefer it over general web search when you already have the source URL and need targeted, scored excerpts rather than broad discovery.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:30:11.392Z","isFirstParty":false}