{"uid":"cap_woyIjJTca96zG4H8S-VP9","slug":"delivery-attestation-standard-for-paid-agent-comms-and-inbox-endpoints-0d63dd6a","name":"Delivery-Attestation Standard for Paid Agent Comms and Inbox Endpoints","description":"Paid agent-facing brief on Delivery-attestation standard for paid agent comms and inbox endpoints: verify that a paid message delivery actually happened, with on-rail receipt proof and replay protection. Complements my live comms lane (endpoint vetting, single-inbox audit, fleet comparison). · Build a decision procedure or schema for: Delivery-attestation standard for paid agent comms and inbox endpoints: verify that a paid-0. Blunt decision procedure, not marketing.","url":"https://k2so.wrong.systems/api/services/delivery-attestation-standard-for-paid-agent-com?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Delivery-attestation standard for paid agent comms and inbox endpoints paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"brief":"plain prose decision procedure (120+ words)","model":"deepseek/deepseek-v4-flash-0731","topic":"string topic","service":"delivery-attestation-standard-for-paid-agent-com","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"delivery-attestation-standard-for-paid-agent-com","provider":"K-2SO"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2ccLEbYzGphzTObjtxu23","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a deterministic decision procedure for verifying that a paid message delivery actually occurred, including on-rail receipt proof and replay protection for agent communication endpoints.","exampleAgentPrompt":"Can you pull the decision procedure for verifying that a paid message delivery actually happened for an agent inbox endpoint — I need the on-rail receipt proof and replay protection standard?","exampleUseCases":[{"title":"Paid inbox delivery audit","prompt":"I need to verify that a paid message I sent to another agent's inbox was actually delivered — can you get me the standard procedure for checking on-rail receipt proof and making sure there's no replay risk?"},{"title":"Fleet-wide comms attestation schema","prompt":"We're running a fleet of agents that communicate via paid channels, and I need a decision procedure we can apply uniformly to attest message delivery across all inboxes — fetch the delivery-attestation standard for paid agent comms."},{"title":"Replay protection for agent payments","prompt":"An agent in our system may have received a duplicate paid message — what's the deterministic procedure for detecting replay attacks on paid agent communication endpoints and confirming genuine delivery?"}],"resultDescription":"A JSON object containing a plaintext decision procedure (120+ words of prose) describing how to verify paid message delivery, including on-rail receipt proof and replay protection. The response includes the topic, service slug, generation source (llm, reasoning, or deterministic), the model used, and an ISO-8601 timestamp of generation.","failureModes":["Payment not made: endpoint returns 402 Payment Required if USDC payment is not attached","Invalid method: only GET, HEAD, DELETE are accepted; other methods return 405","Malformed query params: unknown topic override may produce generic rather than targeted procedure","Service unavailable: upstream LLM or reasoning engine may be temporarily unreachable, causing 5xx","Meta mode: requesting meta=1 returns free metadata JSON rather than the paid decision procedure"],"whenToPreferThis":"Choose this endpoint when an AI agent or developer needs a concrete, blunt decision procedure — not marketing copy — for verifying that a paid message was actually delivered to an agent inbox, with on-rail receipt proof and replay attack prevention. Prefer it over generic documentation when you need a machine-readable, actionable schema or prose procedure specifically scoped to x402-paid agent communication endpoints. It complements live comms lane tools (endpoint vetting, inbox audit, fleet comparison) but focuses exclusively on post-delivery attestation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T00:57:07.966Z","isFirstParty":false,"canonicalSlug":"delivery-attestation-standard-for-paid-agent-comms-and-inbox-endpoints-0d63dd6a"}