{"uid":"cap_2iSqnX8AIwU7m6B73EgzG","slug":"x402-tools-doorcard-diagnostics-endpoint-b0e37bcd","name":"x402-tools Doorcard Diagnostics Endpoint","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/doorcard?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"doorcard","note":"Example paid JSON shape. Not a live settle.","price":"$0.16","title":"Door Card"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.16","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":"$0.16/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.16","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.16","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1imLigLyVHnyGRRJ4IfCv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.16","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a paid JSON diagnostic response for the 'doorcard' SKU, demonstrating x402 HTTP payment flow with EIP-3009 authorization via OpenX402 facilitator.","exampleAgentPrompt":"Run the x402 doorcard diagnostic endpoint for me — I want to confirm my EIP-3009 USDC payment authorization is working correctly with the OpenX402 facilitator and see the paid JSON response shape.","exampleUseCases":[{"title":"Verify x402 payment integration works","prompt":"Can you hit the x402 doorcard probe endpoint and confirm my payment header is being accepted by the OpenX402 facilitator? I want to see the successful paid JSON response."},{"title":"Debug HTTP 402 payment rejection","prompt":"My app is getting HTTP 402 errors back from x402 endpoints — can you call the doorcard diagnostic to check whether the EIP-3009 authorization extras look correct?"},{"title":"Confirm USDC micropayment flow end-to-end","prompt":"I need to validate that a $0.16 USDC payment via the x402 protocol actually settles correctly — can you test the doorcard SKU endpoint and show me what the paid response contains?"}],"resultDescription":"A JSON object containing the SKU name ('doorcard'), a human-readable note describing the response as a paid diagnostic shape, the price ($0.16), and the title ('Door Card'). Unpaid or incorrectly authorized requests receive HTTP 402 with EIP-3009 extras instead.","failureModes":["HTTP 402 returned if payment header is missing or invalid — response includes EIP-3009 extras describing required payment","Facilitator mismatch: only OpenX402 is accepted; other facilitators will be rejected","Malformed EIP-3009 authorization causes payment verification failure","Network timeout or server unavailability returns standard HTTP 5xx"],"whenToPreferThis":"Use this endpoint when you need to test, diagnose, or validate an x402 HTTP payment flow specifically using the OpenX402 facilitator and EIP-3009 authorization scheme. It is purpose-built for probing x402 paid-SKU mechanics rather than delivering production data — ideal for integration testing, debugging 402 flows, or confirming USDC micropayment authorization works end-to-end.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:42:56.309Z","isFirstParty":false,"canonicalSlug":"x402-tools-doorcard-diagnostics-endpoint-b0e37bcd"}