# MX Data Helper – URL Health Check

> MX Data Helper – URL Health Check is a paid API for AI agents from temporary-fleet-eclipse-duogf0d.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Checks the health and reachability of a given URL, returning status information about whether the URL is accessible

## Facts

- Endpoint: POST https://temporary-fleet-eclipse-duogf0d.vercel.app/v1/url_health
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mx-data-helper-url-health-check-7c51459a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hn6EEla0R1ScEI_2B8WFP

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 mx-data-helper-url-health-check-7c51459a -d '<json body>'
```

Example prompt: Can you check if https://example.com is up and reachable right now?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call URL health check without setting up your own monitoring infrastructure. It is well-suited for one-off link validation, pre-publish checks, or lightweight availability probes where you do not need continuous scheduled monitoring. At $0.001 USDC per call on Base mainnet via x402, it is cost-effective for infrequent spot checks.

## Known failure modes

- URL is malformed or missing — returns validation error
- Target URL is down or unreachable — returns error status indicating failure
- Timeout if target URL is extremely slow to respond
- Invalid URL scheme or private/localhost address may be rejected
- Payment not processed — x402 payment required before response is returned

## How this service works

Pay-per-call x402 data services on Base mainnet

## Output

Returns health status information for the given URL, likely including whether the URL is reachable, the HTTP status code returned, and possibly response time or error details if the URL is unreachable or returns a non-2xx status.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to check"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mx-data-helper-url-health-check-7c51459a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from temporary-fleet-eclipse-duogf0d.vercel.app](https://www.zero.xyz/host/temporary-fleet-eclipse-duogf0d.vercel.app/llms.txt)