{"uid":"cap_ydjnfhgK0fLe5u0boo0XH","slug":"artifactguard-web-claim-verifier-4782b3d5","name":"ArtifactGuard Web Claim Verifier","description":"Verify AI-generated claims against a public HTTPS web source and receive a signed evidence receipt.","url":"https://artifactguard-kl4hfo6j2q-as.a.run.app/v1/evidence/web","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/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_iWl4JnkFde56MIYD6FFJ6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies AI-generated claims against a specified public HTTPS web source and returns a cryptographically signed evidence receipt","exampleAgentPrompt":"Check whether the claim 'OpenAI was founded in 2015' is actually supported by the content at https://en.wikipedia.org/wiki/OpenAI, and give me a signed evidence receipt I can use to prove it.","exampleUseCases":[{"title":"Fact-checking AI research summaries","prompt":"I need you to verify that the claim 'the global EV market grew by 35% in 2023' is actually backed by the content at https://www.iea.org/reports/global-ev-outlook-2024, and return a signed receipt I can attach to my report."},{"title":"Auditing AI agent outputs for compliance","prompt":"Our AI assistant claimed that 'GDPR fines can reach up to 4% of annual global turnover' — can you verify that against https://gdpr-info.eu/art-83-gdpr/ and give me a signed evidence receipt for our compliance records?"},{"title":"Validating AI-written product descriptions","prompt":"Check if the claim 'this laptop has a 12-hour battery life' is supported by the content at https://www.dell.com/en-us/shop/dell-laptops/xps-15-laptop/spd/xps-15-9530-laptop and give me an evidence receipt showing whether the source backs it up."}],"resultDescription":"A cryptographically signed evidence receipt indicating whether the submitted claim is supported, partially supported, or contradicted by the fetched web page content, along with relevant excerpts from the source and a tamper-evident signature for audit purposes.","failureModes":["Target URL is not publicly accessible or requires authentication — returns error indicating unreachable source","URL returns non-HTML content (e.g. binary file) — endpoint may fail or return unexpected results","Claim is too vague or ambiguous to match against source content — low-confidence or inconclusive result","Target page contains prompt injection or obfuscation — may affect extraction quality","Network timeout fetching the remote URL — returns timeout error","Invalid or malformed URL input — returns validation error"],"whenToPreferThis":"Choose this endpoint when you need cryptographic, auditable proof that an AI-generated claim is grounded in a specific public web page — not just a summary or scrape. It is ideal for compliance workflows, AI output auditing, research validation, and any scenario where a tamper-evident signed receipt is required. Prefer the companion PDF endpoint when the source is a PDF document rather than a web page.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:35:40.517Z","isFirstParty":false}