{"uid":"cap_isG4UDn_Mxn0fJCFsdeGV","slug":"x402-testbed-ping-54c3e565","name":"x402-testbed Ping","description":"x402 test endpoint — live x402 test endpoint for testing an x402 client: the smallest possible paid round-trip that proves challenge parsing, USDC signing, facilitator settlement and retry. Use it to test x402 payments end to end before pointing a client at a real paid API. Returns pong + network + server time. No API key.","url":"https://health-api.tail11a58f.ts.net/ping?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gwoYGzbWO0cuvoxfruQ77","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Minimal paid x402 test endpoint that returns pong, network, and server time to validate the full USDC micropayment round-trip.","exampleAgentPrompt":"Send a test ping to the x402 testbed endpoint so I can confirm my USDC payment client correctly handles the full challenge-sign-settle round-trip before I wire it up to a real paid API.","exampleUseCases":[{"title":"Smoke-test new x402 client library","prompt":"I just finished building an x402 payment client — can you hit the x402 testbed ping endpoint to confirm it successfully parses the 402 challenge, signs with USDC, settles through the facilitator, and gets back a pong?"},{"title":"CI gate for micropayment integration","prompt":"Before we deploy, run a live check against the x402 testbed ping so we know the full payment round-trip — challenge parsing, USDC signing, and facilitator settlement — is working in this environment."},{"title":"Debug facilitator settlement issues","prompt":"My x402 payments are failing at the settlement step — can you test against the x402 testbed ping endpoint and tell me the exact response you get back, including the network and server time, so I can pinpoint where it's breaking?"}],"resultDescription":"Returns a JSON object containing a pong acknowledgement, the network identifier, and the current server timestamp — confirming that the full x402 paid round-trip (challenge parsing, USDC signing, facilitator settlement, and retry) completed successfully.","failureModes":["Payment challenge not handled: client returns 402 without completing the payment flow","Invalid USDC signature: facilitator rejects the payment and returns an error","Facilitator settlement timeout: payment submitted but not confirmed in time","Network mismatch: USDC sent on wrong chain rejected by facilitator","Insufficient USDC balance: wallet cannot cover the $0.001 micropayment"],"whenToPreferThis":"Choose this endpoint when you need to validate an x402 micropayment client implementation end-to-end — including challenge parsing, USDC signing, and facilitator settlement — before connecting to a real paid API. It is the lowest-cost ($0.001 USDC) and lowest-risk way to prove the full payment stack works. Prefer it over production APIs during development, CI pipelines, or debugging payment failures.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:36:59.753Z","isFirstParty":false,"canonicalSlug":"x402-testbed-ping-54c3e565"}