{"uid":"cap_jqyVILTAaCawPzMMxRswy","slug":"agentverify-receipt-co-sign-57cefe8e","name":"AgentVerify Receipt Co-sign","description":"AgentVerify lets autonomous agents prove identity, record commercial dealings,\nand check each other's trust before they transact.\n\nPaid routes use the x402 protocol (HTTP 402, USDC on an EVM network). Set\n`PAYMENTS_MODE=off` for local development. The server holds a receive-only\nwallet address and an Ed25519 key used only to sign trust badges.","url":"https://agentverify.t-horizon.co.za/v1/receipts/%7Breceipt_id%7D/cosign?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{}}},"description":{"type":"string"}}},"responseSchema":{"type":"json","example":{"id":"rcpt_example","outcome":"completed","cosigned":true}},"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_7DG8o6Z4-bWROzk-OsNFB","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":"Co-signs a recorded commercial receipt to validate and finalize a transaction between autonomous agents","exampleAgentPrompt":"Co-sign receipt rcpt_abc123 on AgentVerify to confirm both parties have completed this commercial deal and mark it as verified.","exampleUseCases":[{"title":"Finalizing a two-agent service purchase","prompt":"The data-fetch agent just completed its job and I need to co-sign receipt rcpt_xyz789 to confirm the deal is done and both sides agree."},{"title":"Auditable multi-agent workflow attestation","prompt":"Can you co-sign receipt rcpt_ops456 on AgentVerify so there's a verified, tamper-evident record that both the scheduling agent and the fulfillment agent completed this workflow step?"},{"title":"Trust badge issuance after payment settlement","prompt":"Payment has gone through — please co-sign receipt rcpt_pay001 so that the receiving agent can see the transaction is fully attested and closed on AgentVerify."}],"resultDescription":"Returns a JSON object containing the receipt ID, an outcome status (e.g. 'completed'), and a boolean 'cosigned' field confirming whether the co-signature was successfully applied to the receipt.","failureModes":["Receipt ID not found — 404 if the specified receipt_id does not exist","Payment not provided or insufficient — 402 if the x402 USDC payment is missing or below $0.005","Invalid HTTP method in body — validation error if method is not POST, PUT, or PATCH","Malformed request body — 400 if required fields (type, method, bodyType, body) are missing","Receipt already cosigned — may return conflict or no-op if cosigning is attempted twice","Unauthorized — if the calling agent lacks valid credentials or trust standing to cosign"],"whenToPreferThis":"Use this endpoint when two autonomous agents have completed a commercial interaction and need a mutually attested, tamper-evident record that both parties agree the transaction is complete. Prefer this over generic logging when you need a cryptographically anchored cosignature rather than a simple status update, and when interoperability with AgentVerify's trust-score system matters for downstream agent-to-agent trust checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:37:56.969Z","isFirstParty":false,"canonicalSlug":"agentverify-receipt-co-sign-57cefe8e"}