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x402 Heartbeat (Ping)
x402
x402 Heartbeat (Ping) is a paid API for AI agents from x402tap.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns a simple timestamped pong response to confirm the x402tap API gateway is alive, billed via a micro-payment channel.
Price / call$0.001
Success—
StatusUnknown
How this service works
19 monetized x402 APIs for AI agents — crypto, DeFi, on-chain data, prediction markets, weather, and web search. No API keys, no signup — pay per call in USDC.
Output
A JSON object containing a Unix millisecond timestamp (ts) and a boolean pong field set to true, confirming the service is live and reachable.
Example use cases
Pre-flight API availability check
“Before I start making a bunch of calls to x402tap, can you quickly ping it to make sure the service is up and responding?”
x402 payment channel connectivity test
“I just set up my x402 payment channel — can you send a test ping to x402tap to confirm everything is connected and billing is working?”
Automated uptime monitoring
“Every 5 minutes, ping x402tap and let me know if it stops responding or the pong comes back false.”
Technical details
Endpoint
GEThttps://x402tap.com/api/pingWhen to prefer
Use this endpoint when you need a lightweight, near-zero-cost signal that the x402tap API gateway is reachable and your x402 micro-payment channel is functional before invoking more expensive sibling endpoints like web search or text generation.
Side effects
- Service unavailable returns non-200 status or no response body
- Payment channel exhausted or unpaid results in 402 Payment Required
- Network timeout if x402tap infrastructure is down
- Malformed response if upstream gateway is degraded
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ts": 1700000000000,
"pong": true
}
}Tags
x402
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