{"uid":"cap_4BYYMTm1NKrw3rvYFUhpe","slug":"x402-tools-wk-accept-null-diagnostic-d55b6bbc","name":"x402-tools WK Accept Null Diagnostic","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/wkacceptnull?utm_source=zero.xyz","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":{"origin":{"type":"string","description":"Public origin URL. Defaults to https://openclawproductions.com."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}},"inputSchema":{"type":"object","required":["type","properties"],"properties":{"type":{"type":"string","const":"object"},"required":{"type":"array","items":{"type":"string"}},"properties":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"sku":"wkacceptnull","note":"Example paid JSON shape. Not a live settle.","price":"$0.02","title":"WK Accept Null"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kU42RPpY6C98mzkIuYysB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","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 payload for the 'wkacceptnull' SKU, gated behind x402 micropayment ($0.02 USDC); unpaid requests receive HTTP 402 with EIP-3009 payment metadata.","exampleAgentPrompt":"Run the wkacceptnull x402 diagnostic against openclawproductions.com using a GET request so I can see the paid JSON payload and verify the EIP-3009 402 challenge is formatted correctly.","exampleUseCases":[{"title":"Verify x402 integration payment flow","prompt":"I'm building an x402-enabled app and want to confirm my payment client handles the 402 challenge correctly — can you probe the wkacceptnull diagnostic endpoint with a GET and show me what the EIP-3009 extras look like before and after payment?"},{"title":"Inspect paid diagnostic SKU response","prompt":"After I pay the 0.02 USDC fee, what does the wkacceptnull diagnostic SKU actually return? Fetch it for me so I can check the JSON shape matches what I expect."},{"title":"Debug OpenX402 facilitator compatibility","prompt":"I need to make sure my wallet is compatible with the OpenX402 facilitator — can you hit the wkacceptnull endpoint with a HEAD request against https://openclawproductions.com and show me the 402 response headers?"}],"resultDescription":"On successful payment: a JSON object containing the SKU name ('wkacceptnull'), a diagnostic note, the price string ('$0.02'), and a title ('WK Accept Null'). On unpaid request: HTTP 402 with EIP-3009 payment challenge extras specifying how to pay via OpenX402 facilitator.","failureModes":["HTTP 402 returned when no valid x402 payment header is provided — expected behavior, includes EIP-3009 payment metadata","Invalid or unsupported HTTP method (only GET, HEAD, DELETE accepted) returns an error","Payment facilitator mismatch (only OpenX402 supported) may cause settlement failure","Malformed origin URL in queryParams may cause request rejection","Stale or replayed EIP-3009 authorization may be rejected by facilitator"],"whenToPreferThis":"Use this endpoint when you need to test, debug, or validate an x402 micropayment integration — specifically to inspect the EIP-3009 402 challenge format, confirm OpenX402 facilitator compatibility, or verify the shape of a paid diagnostic JSON response. Not suitable for production data retrieval or non-x402 payment flows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:46:42.052Z","isFirstParty":false,"canonicalSlug":"x402-tools-wk-accept-null-diagnostic-d55b6bbc"}