# x402 Agent Tools – Web URL Status Checker

> x402 Agent Tools – Web URL Status Checker is a paid API for AI agents from x402-agent-tools.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-11-01).

Checks the HTTP status, redirect chain, and response metadata of a given public URL

## Facts

- Endpoint: GET https://x402-agent-tools.vercel.app/v1/web/status?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-tools-web-url-status-checker-d648bd55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YDC25CO2ghGtPPeziNOHv

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 x402-agent-tools-web-url-status-checker-d648bd55
```

Example prompt: Can you check whether https://myshop.example.com/sale is actually reachable, show me its HTTP status, and tell me if it redirects anywhere before landing?

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call HTTP URL status checks without setting up any accounts or API keys. It is ideal for agents that need to spot-check link health, trace redirect chains, or measure TTFB on arbitrary public URLs. Prefer it over full browser-based crawlers when you only need HTTP-level metadata rather than rendered page content.

## Known failure modes

- Invalid or non-public URL returns an error or ok:false
- Timeouts on very slow servers may return partial data or error
- Private/intranet URLs unreachable from the probe server
- Malformed URL input causes schema validation failure
- DNS resolution failures for non-existent domains

## How this service works

Pay-per-call tools for AI agents. USDC on Base or Solana via x402 v2; no keys, no accounts.

## Output

Returns a JSON object with: ok (boolean), the final HTTP status code, full redirect chain array (each hop with URL, status, and latency in ms), time-to-first-byte in ms, total round-trip time in ms, final resolved URL, number of redirects, and content-type of the final response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Absolute public http(s) URL to check"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "url": "https://google.com/",
  "chain": [
   {
    "ms": 161,
    "url": "https://google.com/",
    "status": 301
   },
   {
    "ms": 101,
    "url": "https://www.google.com/",
    "status": 200
   }
  ],
  "status": 200,
  "ttfbMs": 161,
  "totalMs": 262,
  "finalUrl": "https://www.google.com/",
  "redirects": 1,
  "contentType": "text/html; charset=UTF-8"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agent-tools-web-url-status-checker-d648bd55/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent-tools.vercel.app](https://www.zero.xyz/host/x402-agent-tools.vercel.app/llms.txt)