{"uid":"cap_P_KGrieXhuNugjmEx_Sgp","slug":"web-evidence-capture-change-detection-12987a0b","name":"Web Evidence Capture & Change Detection","description":"Website hosted for free through pinggy.io>\n    <meta name=","url":"https://cofnr-37-255-229-96.free.pinggy.net/evidence?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"http(s) URL to capture evidence for"}}},"responseSchema":{"type":"object","required":["url","contentSha256"],"properties":{"url":{"type":"string"},"bytes":{"type":"integer"},"title":{"type":"string"},"receipt":{"type":"object"},"finalUrl":{"type":"string"},"httpStatus":{"type":"integer"},"linksSample":{"type":"array","items":{"type":"string"}},"contentSha256":{"type":"string"},"changeDetection":{"type":"object"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_SZ11VckZvCRtmFNwQNRSr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Captures a cryptographic snapshot of a web page at a given URL, returning its content hash, HTTP status, title, links, and change detection data as verifiable evidence.","exampleAgentPrompt":"Capture evidence of https://example.com/terms-of-service right now — I need the content hash, HTTP status, page title, and any detected changes so I have a verifiable snapshot for my records.","exampleUseCases":[{"title":"Legal evidence of webpage content","prompt":"I need tamper-proof evidence that https://competitor.com/pricing showed certain prices today — can you capture a cryptographic snapshot with the SHA-256 hash and HTTP status so I can use it in a dispute?"},{"title":"Monitoring policy page for changes","prompt":"Check https://acme.com/privacy-policy and give me its content hash and change detection data — I want to know if it's changed since the last time it was captured."},{"title":"Verifying redirect destination","prompt":"Capture evidence for https://short.link/abc123 — I need to see the final URL it lands on, the HTTP status, and a SHA-256 hash of the page content so I can confirm what it's actually serving."}],"resultDescription":"Returns the original URL, final redirect URL, HTTP status code, page title, content size in bytes, a SHA-256 hash of the page content for cryptographic verification, a sample of links found on the page, a change detection object comparing to prior captures, and a payment receipt.","failureModes":["URL is unreachable or returns a non-2xx status — httpStatus will reflect the error code","Invalid or malformed URL input — request rejected with validation error","Target site blocks automated requests (403/captcha) — partial or failed capture","Redirect loop detected — finalUrl may differ significantly or call may time out","Tunnel host (pinggy.io) downtime — endpoint itself unavailable"],"whenToPreferThis":"Choose this endpoint when you need a verifiable, cryptographically-hashed snapshot of a web page for evidence, audit, or change detection purposes — especially when SHA-256 content integrity and an on-chain-style receipt are required. It is preferable over simple scrapers when tamper-proof provenance of content at a specific moment matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T18:34:29.073Z","isFirstParty":false,"canonicalSlug":"web-evidence-capture-change-detection-12987a0b"}