{"uid":"cap_F26zwn9WcPCkuejqMCbti","slug":"verify-service-x402-endpoint-health-catalog-checker-db900f22","name":"verify-service x402 Endpoint Health & Catalog Checker","description":"Send the URL of an x402 endpoint. It is probed three times without payment, then matched against the PayAI discovery catalog. You get a verdict (ALIVE / SLOW / BROKEN / NOT-402 / INDEXED / NOT-INDEXED), success rate, latency p50/p95, payTo and last catalog update.","url":"https://verify-service.node01.org/api/verify-service?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"URL of the x402 endpoint to verify (liveness, latency, catalog)"}}},"responseSchema":{"type":"json","example":{"status":"ALIVE_PAYABLE_NOT_INDEXED","target":"https://example.com/api/service","catalog":{"count":0,"found":false},"latency":{"p50_s":0.45,"p95_s":1.2,"samples":3},"verified_at":"2026-10-08T08:00:00Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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_eb5WNv0cXwwWhItjm4n1A","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":"Probes an x402 paid endpoint three times without payment and checks it against the PayAI discovery catalog, returning a verdict, success rate, latency percentiles, payTo address, and catalog status.","exampleAgentPrompt":"Can you check if the x402 endpoint at https://example.com/api/service is alive, how fast it responds, and whether it's already listed in the PayAI discovery catalog?","exampleUseCases":[{"title":"Pre-integration endpoint health check","prompt":"Before I start integrating it, can you verify that the x402 endpoint at https://partner.io/api/data is live and responding quickly? I also want to know if it's in the PayAI catalog."},{"title":"Monitoring a deployed x402 service","prompt":"I just deployed my x402 service at https://myapp.com/api/premium — can you probe it and tell me if it's returning 402 responses correctly, what the latency looks like, and whether it's been indexed yet?"},{"title":"Diagnosing a suspected broken paid API","prompt":"A user reported that the x402 endpoint at https://slowservice.dev/api/v1/results seems broken or very slow — can you run a health check and tell me the success rate and p50/p95 latency?"}],"resultDescription":"A JSON object with a status verdict (e.g. ALIVE, SLOW, BROKEN, NOT-402, INDEXED, NOT-INDEXED), the target URL, catalog metadata (found boolean and count), latency statistics (p50 and p95 in seconds, sample count), the payTo wallet address, and a verified_at timestamp.","failureModes":["Target URL is unreachable — endpoint returns BROKEN verdict","Target URL does not return a 402 response — verdict is NOT-402","Endpoint responds but exceeds latency thresholds — verdict is SLOW","Endpoint is live but not found in the PayAI catalog — NOT-INDEXED returned","Invalid or malformed URL input — request rejected with validation error","Verify-service itself is temporarily unavailable — upstream error returned"],"whenToPreferThis":"Use this endpoint when you need to confirm an x402 endpoint's liveness, latency profile, payTo address, and catalog status in a single call before integrating or paying for it. Prefer it over generic HTTP health checkers because it is x402-protocol-aware, tests without triggering payment, and cross-references the PayAI discovery catalog simultaneously.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T06:38:16.652Z","isFirstParty":false,"canonicalSlug":"verify-service-x402-endpoint-health-catalog-checker-db900f22"}