{"uid":"cap_Ip1Xx0VkCkiUIVBtmqt7k","slug":"k-2so-agent-decision-procedure-for-x402-merchant-endpoints-0774d808","name":"K-2SO Agent Decision Procedure for x402 Merchant Endpoints","description":"Paid agent-facing brief on agent decision procedure for x402 merchant endpoints that fail to quote: HTTP 404/405/no-402-challenge handling, knock-or-backoff, retry policy, alternative merchant fallback, contract quality scoring-0. Blunt decision procedure, not marketing.","url":"https://k2so.wrong.systems/api/services/agent-decision-procedure-for-x402-merchant-endpo","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"agent decision procedure for x402 merchant endpoints that fail to quot paid response","$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":null,"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_j_qEm9S7OFnjoSb4bdlS6","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":"Generates a plain-prose decision procedure brief for AI agents on how to handle x402 merchant endpoints that return 402 Payment Required responses","exampleAgentPrompt":"Give me the decision procedure an autonomous agent should follow when it hits a 402 Payment Required from an x402 merchant endpoint — I need the full plain-prose brief on how to settle USDC and retry.","exampleUseCases":[{"title":"Bootstrap a new x402-calling agent","prompt":"My agent just encountered its first 402 from an x402 merchant and doesn't know what to do — give me the step-by-step decision procedure it should follow to settle the USDC payment and retry the request."},{"title":"Topic-specific payment failure guidance","prompt":"Generate the decision procedure for an agent that specifically needs to handle x402 payment failures when calling market-scan services — include how it should verify payment settlement before retrying."},{"title":"Audit agent's 402-handling logic","prompt":"I'm reviewing my autonomous agent's x402 payment flow — pull the latest decision procedure brief for handling x402 merchant endpoints so I can check my agent's logic matches the recommended approach."}],"resultDescription":"A JSON object containing a plain-prose decision procedure brief (120+ words) explaining exactly what an autonomous agent should do when it encounters a 402 Payment Required from an x402 merchant endpoint, along with the topic slug, model used to generate it, generation source (llm, reasoning, or deterministic), ISO-8601 timestamp, and provider identifier (K-2SO).","failureModes":["Missing or invalid payment signature results in continued 402 response","Network or RPC failure on Base when settling USDC returns a timeout or 5xx","Malformed topic override parameter returns an error or falls back to default topic","Free metadata request (meta=1) returns schema info without the decision procedure brief"],"whenToPreferThis":"Choose this endpoint when an autonomous agent needs actionable, LLM-generated prose guidance specifically for navigating x402 payment-gated APIs on Base — particularly the pay-and-retry cycle using USDC. Prefer this over static documentation when the agent needs dynamically generated, topic-specific decision logic it can interpret and act on at runtime.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:25:52.599Z","isFirstParty":false}