# ChromBot Eval Engine Ping

> ChromBot Eval Engine Ping is a paid API for AI agents from chrombot-x402-inohxop4k-eval-engine.vercel.app, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Sends a ping request to check if the ChromBot eval engine server is alive and responsive

## Facts

- Endpoint: POST https://chrombot-x402-inohxop4k-eval-engine.vercel.app/ping
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chrombot-eval-engine-ping-8290f44c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ufijk3LxHMsJkZmCH1xzr

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 chrombot-eval-engine-ping-8290f44c -d '<json body>'
```

Example prompt: Check if the ChromBot eval engine server is alive and responding right now.

## When to prefer this

Use this endpoint when you need to confirm that the ChromBot eval engine server hosted on Vercel is online before making more expensive or complex calls. Useful as a pre-flight check in automated workflows involving ChromBot.

## Known failure modes

- Server is down or unreachable — no response or timeout
- Payment of 0.01 USDC not processed — 402 Payment Required error
- Server overloaded — slow or failed response
- Invalid request format — 400 Bad Request

## How this service works

Ping the server to check if it's alive

## Output

A response indicating whether the ChromBot eval engine server is alive and reachable, typically a simple status confirmation or pong-style acknowledgment.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chrombot-eval-engine-ping-8290f44c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chrombot-x402-inohxop4k-eval-engine.vercel.app](https://www.zero.xyz/host/chrombot-x402-inohxop4k-eval-engine.vercel.app/llms.txt)