{"uid":"cap_W3-Cf10v8IBy2rwbuXppn","slug":"x402-tools-schema-finger-diagnostic-e1acef82","name":"x402-tools Schema Finger Diagnostic","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/schemafinger?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"schemafinger","note":"Example paid JSON shape. Not a live settle.","price":"$0.18","title":"Schema Finger"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.18","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":"$0.18/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.18","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.18","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BMm_VmEalxY-M0tDff--J","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.18","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a paid diagnostic JSON payload demonstrating the x402 payment-gated API pattern with EIP-3009 authorization, via the OpenX402 facilitator.","exampleAgentPrompt":"Run the schemafinger diagnostic on the x402 tools endpoint so I can see what a real paid JSON payload looks like after settling $0.18 USDC through OpenX402.","exampleUseCases":[{"title":"Verify x402 client payment flow","prompt":"I want to confirm my x402 client correctly handles the 402 response with EIP-3009 extras before settling — can you hit the schemafinger endpoint and show me the full diagnostic JSON it returns after paying $0.18 USDC?"},{"title":"Inspect paid SKU response shape","prompt":"Show me what the actual JSON payload looks like when the schemafinger SKU is successfully paid through OpenX402, so I can model my own paid API responses after it."},{"title":"Diagnose OpenX402 facilitator integration","prompt":"Can you probe the x402-tools schemafinger endpoint through the OpenX402 facilitator and tell me if the response schema, price, and SKU fields all come back correctly?"}],"resultDescription":"A JSON object containing the SKU name ('schemafinger'), a human-readable note clarifying this is an example paid shape, the price ('$0.18'), and the title ('Schema Finger'). This represents a confirmed paid diagnostic response demonstrating a successful x402 payment-gated API call.","failureModes":["HTTP 402 returned with EIP-3009 extras if payment has not been settled — caller must complete x402 micropayment flow first","Invalid or missing 'properties' parameter may yield an error or empty response","Facilitator other than OpenX402 will be rejected — only OpenX402 is supported","Network or upstream errors returning non-JSON or 5xx responses"],"whenToPreferThis":"Use this endpoint when you need to test, validate, or demonstrate the x402 HTTP payment protocol with EIP-3009 authorization extras in a live environment. It is the right choice when verifying that an x402 client correctly handles 402 responses and successfully settles micropayments through the OpenX402 facilitator. Prefer it over mock or static fixtures when you need a real paid API call to inspect the actual response shape.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:48:05.616Z","isFirstParty":false,"canonicalSlug":"x402-tools-schema-finger-diagnostic-e1acef82"}