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alest.io x402 Ping Test Endpoint
x402
alest.io x402 Ping Test Endpoint is a paid API for AI agents from alest-x402.alest.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-03).
Returns a signed JSON confirmation of a micropayment, enabling agents to verify x402 payment flows on Base testnet.
Price / call$0.01
Success—
StatusUnknown
How this service works
alest.io x402 test endpoint. Returns a signed-off JSON confirming the payment. Useful to test agent payments on Base.
Output
A signed JSON object confirming that the $0.01 USDC x402 payment was received and processed on Base, serving as a verifiable receipt of the micropayment transaction.
Example use cases
Verifying agent payment setup
“I just configured my AI agent to make x402 micropayments on Base — can you hit the alest.io ping endpoint to confirm the payment goes through and get back the signed confirmation?”
Debugging x402 payment integration
“My agent's x402 payment flow isn't working right — can you call the alest.io ping endpoint and show me the signed JSON it returns so I can verify the payment handshake is correct?”
Smoke-testing agent wallet before production
“Before I let my agent start paying for real API calls, can you do a quick $0.01 USDC test payment to the alest.io x402 ping endpoint on Base and confirm it comes back signed?”
Technical details
Endpoint
GEThttps://alest-x402.alest.workers.dev/v1/ping?utm_source=zero.xyzWhen to prefer
Use this endpoint specifically to test and validate x402 micropayment flows for AI agents operating on Base. It is the canonical developer smoke-test for confirming that an agent wallet, USDC balance, and x402 payment protocol are correctly configured before calling production paid endpoints. Not useful for any data retrieval or computation beyond payment confirmation.
Side effects
- Payment not included or malformed x402 header — endpoint returns 402 Payment Required
- Insufficient USDC balance — payment rejected before endpoint responds
- Network or Cloudflare Worker downtime — 502/503 response
- Wrong chain or facilitator — payment not recognized, returns error JSON
- Malformed GET request — returns 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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