{"uid":"cap_r9h_pLZXO_c7SQQdGRZ7R","slug":"spendthebits-x402-proof-of-life-heartbeat-4eebf365","name":"SpendTheBits x402 Proof-of-Life Heartbeat","description":"A $0.01 proof-of-life resource for SpendTheBits x402 (returns a JSON heartbeat).","url":"https://backend-production-716d3.up.railway.app/x402/@stbclaudeprod/proof/","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string"},"method":{"type":"string"}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oe1pLTpeTRDNA604x4uvD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a JSON heartbeat confirming the SpendTheBits x402 payment endpoint is live, for $0.01 USDC per call.","exampleAgentPrompt":"Can you ping the SpendTheBits x402 proof-of-life endpoint to confirm it's live and responding?","exampleUseCases":[{"title":"Verify x402 service before payment flow","prompt":"Before I kick off a payment workflow using SpendTheBits x402, can you check that the backend is alive and returning a healthy heartbeat?"},{"title":"Monitor x402 micropayment uptime","prompt":"I want to periodically check if the SpendTheBits x402 backend is responding — can you hit its proof-of-life endpoint and tell me if it's up?"},{"title":"Debug failed x402 payment attempt","prompt":"I'm getting errors when trying to make an x402 micropayment through SpendTheBits — can you ping the proof-of-life endpoint to see if the service itself is reachable?"}],"resultDescription":"A JSON heartbeat object confirming the SpendTheBits x402 backend is alive, including liveness status and potentially a timestamp or service identifier.","failureModes":["Service down — returns non-200 status or no response if Railway deployment is offline","Payment failure — call costs $0.01 USDC; if x402 payment is rejected, endpoint will not respond with heartbeat","Schema mismatch — if required 'type' and 'method' fields are missing from input, request may be malformed","Network timeout — Railway-hosted service may have cold-start latency causing occasional timeouts"],"whenToPreferThis":"Use this endpoint when you need a cheap ($0.01 USDC) liveness check for the SpendTheBits x402 payment infrastructure specifically. Prefer this over generic HTTP health checks when you want to validate that the x402 micropayment layer itself is functioning end-to-end, since the payment requirement is itself part of the proof.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:30:30.859Z","isFirstParty":false}