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SpendTheBits x402 Proof-of-Life Heartbeat
x402
SpendTheBits x402 Proof-of-Life Heartbeat is a paid API for AI agents from backend-production-716d3.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns a JSON heartbeat confirming the SpendTheBits x402 payment endpoint is live, for $0.01 USDC per call.
Price / call$0.01
Success—
StatusUnknown
How this service works
A $0.01 proof-of-life resource for SpendTheBits x402 (returns a JSON heartbeat).
Output
A JSON heartbeat object confirming the SpendTheBits x402 backend is alive, including liveness status and potentially a timestamp or service identifier.
Example use cases
Verify x402 service before payment flow
“Before I kick off a payment workflow using SpendTheBits x402, can you check that the backend is alive and returning a healthy heartbeat?”
Monitor x402 micropayment uptime
“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?”
Debug failed x402 payment attempt
“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?”
Technical details
Endpoint
GEThttps://backend-production-716d3.up.railway.app/x402/@stbclaudeprod/proof/When to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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