{"uid":"cap_gmgHr9dj0SEvMY5HfR_pL","slug":"agent-kiosk-ping-echo-test-11e50a1e","name":"Agent Kiosk Ping / Echo Test","description":"Ultra-low-cost ($0.001 USDC) x402 v2 & v1 payment verification, wallet readiness ping, latency check, and echo test on Base Mainnet.","url":"https://agent-kiosk.vercel.app/v1/ping?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"message":{"type":"string","description":"Optional echo string to verify round-trip payload"}}},"responseSchema":{"type":"json","example":{"echo":"hello-x402","asset":"USDC","status":"pong","network":"eip155:8453","service":"Agent Kiosk","verified":true}},"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_H8wHfIB-yLL19hKfPHlsN","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":"Performs a sub-cent x402 payment verification, wallet readiness check, latency measurement, and optional echo test on Base Mainnet.","exampleAgentPrompt":"Run a quick x402 ping test on Agent Kiosk to confirm my wallet is set up correctly on Base Mainnet — echo back the string 'hello-x402' so I can verify the full round-trip payload works.","exampleUseCases":[{"title":"Preflight wallet readiness check","prompt":"Before I start using any paid x402 APIs, ping Agent Kiosk to confirm my wallet is connected and can make USDC payments on Base Mainnet — echo 'preflight-check' so I know the payload comes back correctly."},{"title":"x402 integration smoke test","prompt":"I just wired up x402 v2 in my LangChain agent — can you send a $0.001 test ping to Agent Kiosk with the echo string 'integration-test' to confirm payments go through and the response comes back verified?"},{"title":"Latency baseline measurement","prompt":"I need to benchmark how fast x402 payments resolve on Base — ping Agent Kiosk a few times with the message 'latency-probe' and tell me how quickly each verified pong comes back."}],"resultDescription":"Returns a JSON object with fields: status ('pong'), echo (the string you sent), asset ('USDC'), network ('eip155:8453' = Base Mainnet), service ('Agent Kiosk'), and verified (true). Confirms the full x402 payment cycle completed successfully.","failureModes":["Insufficient USDC balance in agent wallet — payment rejected before endpoint is reached","Malformed x402 payment header — returns 402 Payment Required with instructions","Network congestion on Base causing delayed payment confirmation","Invalid or missing x402 version header — endpoint may reject v1/v2 mismatches","Vercel cold-start latency on first request may inflate measured round-trip time"],"whenToPreferThis":"Use this endpoint when you need the cheapest possible way ($0.001 USDC) to verify that your x402 payment stack is correctly configured on Base Mainnet, test wallet connectivity, benchmark latency, or confirm round-trip payload delivery before invoking more expensive x402 APIs. Prefer this over building custom test harnesses or using higher-cost endpoints for integration validation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:43:43.660Z","isFirstParty":false,"canonicalSlug":"agent-kiosk-ping-echo-test-11e50a1e"}