{"uid":"cap_hXzl1volyNBr5twpMfvsr","slug":"x402-radar-conformance-probe-03b69f72","name":"x402 Radar Conformance Probe","description":"Live x402 conformance probe: url=<endpoint>, returns whether it serves a valid 402 handshake, actual price/asset/network/payTo, latency. Verify before you pay. By x402 Radar.","url":"https://influenced-conducting-temp-contributors.trycloudflare.com/api/check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"object","example":{"x402":true,"alive":true,"scheme":"exact","status":402,"checked":"https://api.exa.ai/search","network":"base","latency_ms":340,"valid_handshake":true,"price_usd_if_usdc":0.007},"properties":{"at":{"type":"string"},"x402":{"type":"boolean"},"alive":{"type":"boolean"},"asset":{"type":"string"},"payTo":{"type":"string"},"scheme":{"type":"string"},"status":{"type":"number"},"checked":{"type":"string"},"network":{"type":"string"},"latency_ms":{"type":"number"},"price_atomic":{"type":"string"},"x402_version":{"type":"number"},"valid_handshake":{"type":"boolean"},"price_usd_if_usdc":{"type":"number"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_I3c4MrYNznc3TDACDAa38","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given URL correctly implements the x402 payment protocol, returning handshake validity, price, asset, network, payTo address, and latency.","exampleAgentPrompt":"Before I pay, can you check whether https://api.exa.ai/search is a legitimate x402 endpoint — tell me if the handshake is valid, what it costs, and which network and wallet it pays to?","exampleUseCases":[{"title":"Pre-payment endpoint verification","prompt":"Before my agent sends any USDC, check if https://api.someservice.com/data is actually running a valid x402 handshake — I want to see the price, the network, and the payTo address so I know it's legit."},{"title":"Debugging a broken x402 integration","prompt":"I built an x402-enabled API at https://myapi.example.com/query but I'm not sure it's responding correctly — can you probe it and tell me whether the handshake is valid and what latency it's showing?"},{"title":"Comparing two x402 services before choosing","prompt":"I'm deciding between two x402 APIs — can you check https://api.service-a.com/search and tell me its price in USDC, which blockchain network it uses, and whether the handshake is actually valid?"}],"resultDescription":"Returns a JSON object indicating whether the endpoint is alive, whether it correctly responds with HTTP 402 and a valid x402 handshake, the payment scheme, network (e.g. base), asset, payTo wallet address, atomic price, estimated price in USD if USDC, and round-trip latency in milliseconds.","failureModes":["URL is unreachable or times out — alive:false returned","Endpoint returns 402 but with malformed or missing x402 headers — valid_handshake:false","Endpoint does not return 402 at all — x402:false","Network or asset fields missing from response — incomplete handshake data","Cloudflare tunnel hosting the probe itself is temporarily unavailable"],"whenToPreferThis":"Use this endpoint when an AI agent needs to verify an x402 payment endpoint before committing funds, when integrating with an unknown x402 service and wanting to confirm correct protocol implementation, or when debugging why an x402 handshake is failing. Prefer this over trusting directory listings alone — it performs a live probe of the actual endpoint.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T03:29:00.272Z","isFirstParty":false,"canonicalSlug":"x402-radar-conformance-probe-03b69f72"}