{"uid":"cap_9B4iD7FzNMbRI9BSVkkZF","slug":"defaultverifier-settlement-witness-f531fe2f","name":"DefaultVerifier Settlement Witness","description":"AI agents do the work. DefaultVerifier gives you the receipt — a signed receipt with a proof seal that makes its integrity visible. Verify any receipt yourself; issue your own.","url":"https://defaultverifier.com/x402/settlement-witness","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_J29NI3MAKr0IO_hFtxrdi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Issues a cryptographically signed, integrity-sealed receipt (proof seal) for an autonomous agent's completed work or transaction settlement.","exampleAgentPrompt":"My AI agent just completed a data extraction task — can you create a signed settlement witness receipt with a proof seal for that work so I have a tamper-evident record I can verify independently?","exampleUseCases":null,"resultDescription":"A cryptographically signed receipt containing a proof seal that attests to the integrity of the submitted evidence; the receipt can be independently verified and demonstrates that the witnessed work or settlement occurred as recorded.","failureModes":["Invalid or malformed evidence payload — receipt not issued","Payment of 0.001 USDC not received or x402 payment header missing — 402 response","Proof seal generation failure due to signing service error — 500 response","Duplicate submission of already-witnessed evidence — may return conflict or idempotency error","Oversized payload exceeding request limits — 413 response"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a tamper-evident, cryptographically signed audit trail for completed autonomous work — especially in multi-party or trustless contexts where external verifiability of the receipt matters. Prefer over generic logging when the integrity and non-repudiation of the work record must be independently verifiable by a third party.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:33:06.930Z","isFirstParty":false}