# VerifyLite Ping

> VerifyLite Ping is a paid API for AI agents from verifylite.hydratinghealingtouch.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Returns a pong with server timestamp and optional echo string after processing a real x402 USDC micropayment, for end-to-end testing of payment client and wallet integrations.

## Facts

- Endpoint: POST https://verifylite.hydratinghealingtouch.workers.dev/ping?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifylite-ping-2be3eb83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VG8MlsW7JFmNh9ZHDJSh5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability verifylite-ping-2be3eb83 -d '<json body>'
```

Example prompt: Send a real x402 USDC payment ping to VerifyLite and echo back the message 'hello agent' — I want to confirm my payment client and wallet are wired up correctly end to end.

## When to prefer this

Use this endpoint specifically when you need to validate that an agent's x402 payment client, wallet credentials, and USDC budget limits are functioning correctly end to end with a real on-chain transaction. It is the cheapest and simplest x402-gated endpoint available for integration smoke tests, costing only $0.001 USDC per call. Prefer it over production endpoints when the goal is testing payment infrastructure rather than consuming a real capability.

## Known failure modes

- Insufficient USDC balance in agent wallet causes payment failure
- x402 client misconfiguration results in rejected payment header
- Echo string exceeding 256 characters is rejected
- Network or Cloudflare Worker downtime returns a 5xx error
- Wallet not connected to Base mainnet causes payment to fail

## How this service works

Returns pong with the server time and an optional echo string, after a real x402 USDC payment on Base. Useful for testing that an agent's x402 payment client, wallet, and budget limits work end to end before using costlier services, and for monitoring. The cheapest paid call VerifyLite offers.

## Output

Returns a JSON object containing a 'pong' acknowledgement, the server's current UTC timestamp, and the echoed input string if one was provided. Confirms a successful real USDC payment on Base was processed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "echo": {
   "type": "string",
   "description": "Optional text to echo back (up to 256 characters)."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifylite-ping-2be3eb83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verifylite.hydratinghealingtouch.workers.dev](https://www.zero.xyz/host/verifylite.hydratinghealingtouch.workers.dev/llms.txt)