{"uid":"cap_2zCC7z0H9wzdnIeeTJRol","slug":"x402-mail-auth-diagnostics-2bf08070","name":"x402 Mail Auth Diagnostics","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/mailauth?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"sku":"mailauth","note":"Example paid JSON shape. Not a live settle.","price":"$0.03","title":"Mail Auth"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FjdyYWOzYxiteKtpO3O7G","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","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 for the 'mailauth' SKU, demonstrating x402 payment-gated API access with EIP-3009 payment flow via OpenX402 facilitator.","exampleAgentPrompt":"Can you call the x402 mailauth diagnostic endpoint and show me the paid JSON response it returns after settling the $0.03 USDC payment through OpenX402?","exampleUseCases":[{"title":"Test x402 payment gate integration","prompt":"I'm building an x402-gated API and want to confirm the payment flow works end-to-end — can you hit the mailauth SKU diagnostic and show me what the paid JSON response looks like after the $0.03 USDC is settled?"},{"title":"Verify EIP-3009 payment compliance","prompt":"Can you test the OpenX402 facilitator by calling the mailauth diagnostic endpoint and confirm the EIP-3009 payment authorization goes through correctly and returns the expected SKU response?"},{"title":"Debug 402 payment-required errors","prompt":"I keep getting HTTP 402 errors on my x402 API calls — can you call the mailauth diagnostic to check whether the payment token is being accepted properly and show me the diagnostic output?"}],"resultDescription":"A JSON object containing the SKU name ('mailauth'), a diagnostic note explaining this is an example paid response shape, the price ($0.03), and a human-readable title ('Mail Auth'). If payment is not provided, returns HTTP 402 with EIP-3009 payment extras indicating the required payment details.","failureModes":["HTTP 402 returned when no valid x402 payment token is provided, includes EIP-3009 payment requirement details","Invalid or expired EIP-3009 authorization token causes payment rejection","OpenX402 facilitator unavailable causes payment settlement failure","Malformed request properties result in schema validation errors"],"whenToPreferThis":"Use this endpoint when testing or diagnosing x402 protocol payment flows, specifically with the OpenX402 facilitator and EIP-3009 payment authorization. Prefer this for verifying that micropayment-gated API access is correctly configured, that USDC payment settlement works end-to-end, or for exploring what a paid x402 diagnostic SKU response looks like.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:38:24.463Z","isFirstParty":false,"canonicalSlug":"x402-mail-auth-diagnostics-2bf08070"}