{"uid":"cap_sJZ-Wn_zSJhXU7cmbfvLv","slug":"trust402-x402-endpoint-prober-445729bd","name":"trust402 x402 Endpoint Prober","description":"Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness.","url":"https://trust402.vercel.app/api/trust/check-x402","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"method":{"enum":["GET","POST","PUT","PATCH","DELETE","HEAD"],"type":"string","default":"GET"},"endpoint":{"type":"string","format":"uri","description":"x402 endpoint to probe without paying."},"expectedPriceUsd":{"type":"number","description":"Expected maximum price in USD."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YWvfFIQxrQBKIpcHGw2Zh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs a live probe against an x402-protected endpoint to assess its 402 challenge and payment-flow readiness without actually paying.","exampleAgentPrompt":"Can you probe https://api.example.com/premium-data with a GET request to check if its x402 challenge flow is properly set up and confirm the price doesn't exceed $0.10 USD?","exampleUseCases":null,"resultDescription":"A summary of the x402 endpoint's challenge and payment-flow readiness, including whether the endpoint returns a valid 402 response, details of the payment challenge, and whether the price falls within the expected maximum USD threshold — all without actually completing a payment.","failureModes":["Target endpoint is unreachable or times out — probe returns connectivity error","Endpoint does not return a 402 response — flagged as not x402-compliant","Price exceeds expectedPriceUsd — flagged as price mismatch","Invalid or malformed URI provided — validation error before probe","Endpoint returns 402 but with malformed payment challenge — partial compliance result"],"whenToPreferThis":"Use this endpoint when you need to verify that an x402-protected API is correctly configured and live before integrating or routing payments through it. Ideal for pre-flight checks, integration testing, or auditing x402 endpoints for price compliance — especially when you want to inspect the 402 challenge structure without committing to a payment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:37:54.117Z","isFirstParty":false}