{"uid":"cap_fXszhOPNAw6ytMSiC5f3j","slug":"bought-web-action-receipt-verification-standard-2ec324b2","name":"Bought Web Action Receipt Verification Standard","description":"Post-purchase gate for x402 web automation receipts. Checks payment match against quote, execution proof fields, result schema conformance, idempotency key reuse, and replay resistance before accepting a claimed page action as certified delivery evidence.","url":"https://k2so-8080.on.ascii.dev/api/services/bought-web-action-receipt-verification-standard","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Bought web action receipt verification standard paid response","$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":"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_qH9W3Ki24lFbqZXLx29fF","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":"Validates x402 web automation payment receipts by checking payment match, execution proof, schema conformance, idempotency key reuse, and replay resistance before certifying a page action as delivered.","exampleAgentPrompt":"Can you verify this x402 web action receipt for me — I need to confirm the payment matches the original quote, the execution proof fields are valid, no idempotency key reuse, and it passes replay resistance before I accept it as certified delivery evidence?","exampleUseCases":[{"title":"Post-purchase delivery gate for agent workflow","prompt":"I just received an x402 receipt claiming a web page action was completed — can you run it through the bought web action receipt verification standard to confirm the payment matches the quote and the execution proof is legitimate before I mark the task as done?"},{"title":"Replay attack detection in automated pipeline","prompt":"Before my automation pipeline accepts this x402 receipt as valid, I need you to check it for replay resistance and idempotency key reuse so I know it hasn't been submitted before."},{"title":"Schema conformance audit for receipt logging","prompt":"I need to validate that this incoming x402 web action receipt conforms to the correct result schema and all required proof fields are present before I log it as certified delivery evidence in my records."}],"resultDescription":"Returns a structured object with an 'ok' boolean indicating overall handler success, a 'paid' boolean, a 'result' object containing a decision procedure brief (prose guidance for agents), topic, service slug, generation source (llm/reasoning/deterministic), and an ISO-8601 timestamp. Also includes payment details such as payer, transaction hash, and self-pay flag. Effectively certifies whether the presented receipt constitutes valid delivery evidence.","failureModes":["Payment amount does not match the original quote — receipt rejected","Execution proof fields are missing or malformed — validation fails","Idempotency key has been seen before — replay detected and rejected","Receipt schema does not conform to expected structure — conformance check fails","Replay resistance check fails due to reused nonce or stale timestamp","Service unavailable or upstream error returns non-ok response","Invalid HTTP method used (only GET/HEAD/DELETE accepted)"],"whenToPreferThis":"Choose this endpoint when you need a post-purchase gate specifically for x402 web automation receipts and require checks across payment match, execution proof integrity, idempotency key uniqueness, schema conformance, and replay resistance in a single call. Prefer it over generic payment verification when the receipt comes from an x402-based web action automation flow and certified delivery evidence is required before proceeding.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:51:36.482Z","isFirstParty":false}