{"uid":"cap_MLGNtPl3YgPKOZ-0u7K7Q","slug":"x402-tools-proof-ledger-diagnostics-cf2a639b","name":"x402-tools Proof Ledger Diagnostics","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/proofledger?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"proofledger","note":"Example paid JSON shape. Not a live settle.","price":"$0.22","title":"Proof Ledger"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.22","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":"$0.22/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.22","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.22","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_TNWB8c4hBPQR6AzqbS8tC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.22","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a paid x402 diagnostic payload for the 'proofledger' SKU, demonstrating HTTP 402 / EIP-3009 payment gating with OpenX402 as facilitator.","exampleAgentPrompt":"Run the x402 proofledger diagnostic to confirm that the EIP-3009 payment gating is working — I want to see the paid JSON response shape after settling $0.22 USDC via OpenX402.","exampleUseCases":[{"title":"Verify x402 payment flow end-to-end","prompt":"I want to confirm my x402 integration is working — can you call the proofledger endpoint, pay the $0.22 USDC through OpenX402, and show me the paid response so I know the EIP-3009 payment gate opened correctly?"},{"title":"Debug 402 response before payment","prompt":"Can you probe the proofledger diagnostic endpoint without sending payment so I can see exactly what the HTTP 402 response looks like with the eip3009 extras before I wire up my payment logic?"},{"title":"Confirm OpenX402 facilitator is live","prompt":"I need to verify that the OpenX402 facilitator is operational — hit the x402-tools proofledger SKU and tell me whether it returns a valid paid response or errors out."}],"resultDescription":"A JSON object containing the SKU name ('proofledger'), a human-readable title ('Proof Ledger'), the price ('$0.22'), and a diagnostic note confirming the paid JSON shape. If payment has not been provided, the endpoint returns HTTP 402 with EIP-3009 payment-required metadata instead.","failureModes":["HTTP 402 returned when no valid x402 payment token is included — response includes eip3009 extras describing payment requirements","Payment token invalid or expired — facilitator rejects and 402 is re-issued","OpenX402 facilitator unavailable — request cannot be settled","Malformed properties parameter — may result in unexpected response or error","USDC balance insufficient to cover $0.22 per-call cost"],"whenToPreferThis":"Choose this endpoint when you need to test, diagnose, or demonstrate the x402 HTTP payment gating protocol with EIP-3009 extras specifically via the OpenX402 facilitator. It is ideal for developers integrating x402 into their own APIs who want a live reference endpoint that returns a predictable paid payload. Prefer this over generic HTTP testing tools when the goal is to validate USDC micropayment flows or inspect 402-with-eip3009 response structures.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:47:03.028Z","isFirstParty":false,"canonicalSlug":"x402-tools-proof-ledger-diagnostics-cf2a639b"}