{"uid":"cap_alDwmQsp8I9Pn1hUfLyPS","slug":"k-2so-deterministic-agent-to-agent-x402-dispute-resolution-procedure-7c3a3d5c","name":"K-2SO Deterministic Agent-to-Agent x402 Dispute Resolution Procedure","description":"Deterministic dispute resolution for contested x402 settlements. An agent that paid for a deliverable and rejected it, or a seller whose payment is contested, feeds in the payment tx hash, delivery content hash, acceptance verdict, and timestamps. The procedure checks evidence completeness (missing evidence defaults to PAY-IF-DELIVERED-ELSE-REFUND within 24h), then runs a timed contestation ladder: direct reconcile at T+0, escrow quorum vote at T+1h requiring 60% agreement, neutral arbitration","url":"https://k2so.wrong.systems/api/services/deterministic-agent-to-agent-x402-dispute-resolu","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Agent x402 dispute contestation procedure paid response","$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":"deterministic-agent-to-agent-x402-dispute-resolu","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"deterministic-agent-to-agent-x402-dispute-resolu","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":"down","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_6hs-8PnjvOXLxF5YVejuq","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 (prose brief) for autonomous agents resolving disputes in x402 agent-to-agent payment transactions","exampleAgentPrompt":"I need a clear decision procedure my agent can follow when disputing or contesting an x402 payment transaction — give me the full step-by-step brief for agent-to-agent x402 dispute resolution.","exampleUseCases":[{"title":"Contested micropayment between two AI agents","prompt":"My buyer agent paid for an x402 API call but the seller agent says payment was never received — give me the procedure my agent should follow to contest and resolve that dispute."},{"title":"Building x402 dispute handling into an agent","prompt":"I'm coding an autonomous agent that buys x402 services on Base and I need a decision procedure it can follow whenever a payment dispute or contestation comes up — get me that brief."},{"title":"Auditing agent payment governance policy","prompt":"I want to review the standard dispute contestation procedure for agent-to-agent x402 transactions on Base so I can make sure my agent fleet's governance policy is aligned with it."}],"resultDescription":"A JSON object containing a plain-prose decision procedure brief (120+ words) describing how an autonomous agent should handle x402 dispute contestation, along with metadata including the model used, generation source (deterministic/llm/reasoning), ISO-8601 timestamp, service slug, and provider name K-2SO.","failureModes":["HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header","Invalid or unsupported HTTP method returns an error (only GET/HEAD/DELETE allowed)","Malformed query parameters may result in a failed handler response with ok: false","Topic override not recognized may fall back to default dispute procedure topic","Network or upstream LLM failure may result in generation errors"],"whenToPreferThis":"Choose this endpoint when an autonomous agent needs a ready-made, authoritative decision procedure for handling x402 payment disputes — particularly in agent-to-agent commerce on Base/USDC. Prefer it over building custom dispute logic when you want a deterministic, reusable procedure that conforms to x402 protocol norms. Especially useful when developing or auditing agent governance policies around contested payments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T15:27:51.813Z","isFirstParty":false}