{"uid":"cap_5JKAhU-8AXvq09CTOShwy","slug":"x402-tools-soft-pass-221-diagnostic-endpoint-7d07db33","name":"x402-tools Soft Pass 221 Diagnostic Endpoint","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/softpass221?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"softpass221","note":"Example paid JSON shape. Not a live settle.","price":"$0.02","title":"Soft Pass 221"}},"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_0oQ93rgWgqSZ8mt_EQsXH","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 diagnostic JSON payload (SKU: softpass221) confirming x402 payment flow with EIP-3009 authorization, gated by $0.02 USDC via OpenX402 facilitator.","exampleAgentPrompt":"Run the Soft Pass 221 x402 diagnostic so I can confirm my EIP-3009 payment authorization and OpenX402 facilitator are working correctly — it should cost $0.02 USDC and return the paid SKU payload.","exampleUseCases":[{"title":"Verify x402 payment integration end-to-end","prompt":"Can you hit the Soft Pass 221 diagnostic endpoint to confirm my x402 setup is working — I want to see the paid JSON response with the SKU and title to know the $0.02 USDC payment went through via OpenX402."},{"title":"Debug EIP-3009 authorization failures","prompt":"I'm getting HTTP 402 errors and I'm not sure if my EIP-3009 authorization is malformed — can you call the x402 Soft Pass 221 probe and show me the eip3009 extras in the 402 response so I can compare them to what I'm sending?"},{"title":"Confirm OpenX402 facilitator is live","prompt":"Check whether the OpenX402 facilitator is actually processing payments right now by running the softpass221 diagnostic — if it returns the paid JSON shape with the SKU and note, we know the facilitator is up."}],"resultDescription":"On successful payment: a JSON object containing sku ('softpass221'), a diagnostic note, price ('$0.02'), and title ('Soft Pass 221'). On unpaid or failed payment: HTTP 402 with EIP-3009 extras in the response headers/body, indicating what payment authorization is required.","failureModes":["HTTP 402 with EIP-3009 extras returned when no valid x402 payment header is provided","Payment authorization rejected if EIP-3009 signature is malformed or expired","OpenX402 facilitator unavailable causing payment processing failure","Invalid or missing 'properties' query parameter may yield malformed request error","USDC balance insufficient to cover $0.02 per-call fee"],"whenToPreferThis":"Use this endpoint specifically to test, diagnose, or validate x402 micropayment flows using the OpenX402 facilitator and EIP-3009 authorization. Prefer it over generic HTTP testing tools when you need a real paid endpoint that returns a structured JSON diagnostic payload and properly issues HTTP 402 challenges with EIP-3009 extras on unpaid requests. Ideal for developers integrating x402 into their stack who need a cheap, real-world probe at $0.02 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:25:26.777Z","isFirstParty":false,"canonicalSlug":"x402-tools-soft-pass-221-diagnostic-endpoint-7d07db33"}