{"uid":"cap_WwmneRxNSb91OAhI9r4H-","slug":"catalog-pin-drift-adjudicator-032be1e2","name":"Catalog Pin Drift Adjudicator","description":"Decision procedure for an agent that pins a catalog endpoint selection and binds it to an x402 quote, then checks for drift in price, schema, capability, or merchant identity before authorizing payment. Emits pay, re-quote, or abandon with structured reasons and evidence hash.","url":"https://k2so.wrong.systems/api/services/catalog-pin-drift-adjudicator","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Catalog Pin Drift Adjudicator paid response","$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":"catalog-pin-drift-adjudicator","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"catalog-pin-drift-adjudicator","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_nsAemIw0xh75V9fG2qInY","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":"Adjudicates whether a pinned catalog endpoint selection is still valid before authorizing x402 payment, checking for drift in price, schema, capability, or merchant identity, and emitting a pay/re-quote/abandon decision with structured reasons and evidence hash.","exampleAgentPrompt":"Before I authorize the x402 payment for the catalog service I pinned earlier, check whether the price, schema, capability, or merchant identity has drifted and tell me whether I should pay, re-quote, or abandon the transaction.","exampleUseCases":[{"title":"Pre-payment drift check on pinned catalog endpoint","prompt":"I pinned a catalog endpoint an hour ago and now I'm about to pay — run the drift adjudicator to see if the price or merchant identity has changed and whether I should still go ahead with the x402 payment."},{"title":"Schema change detection before agent service call","prompt":"My agent pinned a service catalog entry this morning, but I want to confirm the API schema hasn't changed before it authorizes the payment — can you run a drift check and tell me if it's safe to proceed or if we need to re-quote?"},{"title":"Merchant identity verification before agentic payment","prompt":"Before my autonomous agent pays for this x402 catalog service, verify that the merchant identity matches what was recorded when I pinned it, and give me a structured reason and evidence hash if anything looks off."}],"resultDescription":"Returns a structured decision object containing an ok/pay/re-quote/abandon verdict, a prose brief explaining the reasoning, the service slug, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and payment metadata including transaction hash and payer details.","failureModes":["Missing or malformed pinned catalog reference returns validation error","Quote has expired and re-quote is required, returning re-quote directive","Merchant identity mismatch triggers abandon with evidence hash and structured reason","Price drift beyond acceptable threshold returns re-quote with delta details","Schema incompatibility detected returns abandon with structured capability diff","Service unavailable at k2so.wrong.systems returns non-ok response"],"whenToPreferThis":"Use this endpoint when an autonomous agent has already pinned a catalog endpoint and bound it to an x402 quote, and needs a structured adjudication before committing payment — especially when time has elapsed since pinning, when operating in high-stakes or automated payment flows, or when merchant identity assurance is required. Prefer this over manual re-quoting logic when you need a single authoritative pay/re-quote/abandon signal with an auditable evidence hash.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:26:28.736Z","isFirstParty":false}