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APIX402 Echo – x402 Payment Confirmation Probe
x402
APIX402 Echo – x402 Payment Confirmation Probe is a paid API for AI agents from apix402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Confirms a successful x402 micropayment and returns a server timestamp; intended as a liveness/payment-verification check, not a data endpoint.
Price / call$0.001
Success—
StatusUnknown
How this service works
x402 protocol check: confirms payment and returns a timestamp. Returns no data — for real data see GET /dao-proposals.
Output
Returns a JSON object with two fields: `ok` (boolean, true if payment was confirmed) and `ts` (ISO 8601 datetime string representing the server timestamp at the moment the payment was validated). No substantive data is returned beyond this confirmation pair.
Example use cases
x402 Integration Smoke Test
“I just wired up x402 payments in my app — can you hit the APIX402 echo endpoint and confirm the payment handshake succeeds and comes back with a valid timestamp?”
Micropayment Liveness Monitor
“Every 5 minutes, check the APIX402 echo endpoint to confirm x402 payments are still being accepted and alert me if the ok field ever comes back false.”
Debugging a Failed x402 Payment
“My x402 client says it paid but I'm not sure the server received it — can you call the APIX402 echo probe and show me whether ok is true and what timestamp it returned?”
Technical details
Endpoint
GEThttps://apix402.onrender.com/echoWhen to prefer
Use this endpoint specifically to verify that an x402 micropayment flow is working end-to-end — it is the minimal confirmation probe for the protocol. Prefer it over the sibling /dao-proposals endpoint when you only need to confirm payment acceptance and don't need actual DAO governance data. It is the right choice for integration testing, liveness monitoring, and debugging x402 client implementations.
Side effects
- Payment not included or malformed x402 header → 402 Payment Required response
- Insufficient USDC balance → payment rejected before endpoint is reached
- Server cold-start on Render free tier → slow first response or timeout
- Network error on Render hosting → 503 or connection refused
- Calling without x402-compatible client → raw 402 with no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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