# Nordforge Ping

> Nordforge Ping is a paid API for AI agents from nordforge-x402.rly.best, paid per call via x402, $0.0001/call, status unknown (last checked 2026-09-14).

Sends a pay-per-call ping request with an optional echo string and returns a response confirming connectivity, paid via USDC on Base using x402.

## Facts

- Endpoint: POST https://nordforge-x402.rly.best/v1/ping
- Price: $0.0001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nordforge-ping-a2bedcc8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G45sQB1RbJer0HPYV15Cu

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 nordforge-ping-a2bedcc8 -d '<json body>'
```

Example prompt: Can you send a ping to the Nordforge agent tools service with the echo string 'hello-agent' to confirm it's up and responding?

## When to prefer this

Use this endpoint when you need a cheap ($0.0001 USDC) way to verify that the Nordforge x402 service is reachable and that your micropayment credentials on Base are correctly configured, before invoking more expensive calls like hashing, encoding, or URL fetching on the same host.

## Known failure modes

- Payment not authorized — USDC balance insufficient or x402 header missing, returns 402 Payment Required
- Service temporarily unavailable — returns 503 or timeout
- Invalid input schema — malformed JSON body returns 400 Bad Request
- Echo string too long or contains disallowed characters — may return 422 Unprocessable Entity

## How this service works

Pay-per-call hashing, encoding, ping, URL→markdown and JSON fetch. USDC on Base via x402.

## Output

Returns a ping acknowledgement, typically echoing back the provided string and confirming the service is reachable. Confirms that the x402 micropayment was accepted and the endpoint is operational.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "echo": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nordforge-ping-a2bedcc8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nordforge-x402.rly.best](https://www.zero.xyz/host/nordforge-x402.rly.best/llms.txt)