{"uid":"cap_31qLnpBeyTR7xHDUINqau","slug":"aotrust-notarization-api-73bcc119","name":"AOTrust Notarization API","description":"Notarize agent payload. Returns signed PDR.","url":"https://api.aotrust.link/notarize","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_SkKlzX8wgFXEEmGXYkYkR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Notarizes an agent payload by cryptographically signing it and returning a signed Payload Data Receipt (PDR)","exampleAgentPrompt":"Notarize this agent payload for me and get back a signed PDR so I have a cryptographically verified receipt proving the content hasn't been tampered with.","exampleUseCases":[{"title":"Audit trail for autonomous agent actions","prompt":"I need to notarize the output my AI agent just produced before storing it — can you send this payload to AOTrust and get back a signed PDR I can attach to the audit log?"},{"title":"Tamper-proof proof of AI decision","prompt":"My agent just made a loan recommendation and I need to prove what data it used at the time — please notarize this payload so I get a signed, timestamped receipt I can keep for compliance."},{"title":"Cross-agent payload verification","prompt":"Before this agent hands off its result to another agent in the pipeline, I want a signed PDR from AOTrust attesting to the payload contents so the receiving agent can verify it wasn't altered in transit."}],"resultDescription":"A signed Payload Data Receipt (PDR) — a cryptographic attestation tied to the submitted agent payload, proving its contents at the time of submission and providing a verifiable, tamper-evident record.","failureModes":["Invalid or malformed payload body — 400 error returned","Payment not attached or insufficient USDC — 402 payment required","Signature generation failure due to internal key issues — 500 server error","Network timeout if payload is too large","Duplicate payload submission may return the same PDR or an error depending on deduplication logic"],"whenToPreferThis":"Use this endpoint when you need a cryptographically signed, verifiable receipt for an agent payload — especially in multi-agent pipelines, compliance-sensitive workflows, or audit contexts where tamper-evidence and provenance matter. Prefer it over generic logging or storage when you specifically need a signed attestation (PDR) rather than just a record.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:30:56.216Z","isFirstParty":false}