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x402 Agent Tools – Web URL Status Checker
x402
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
Price / call$0.002
Success—
StatusUnknown
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.
Example use cases
Broken link checker for content team
“Check if https://blog.acme.com/2023/old-post is still live or if it's returning a 404 — I need to know before we publish this week's newsletter linking to it.”
Redirect audit for SEO campaign
“I just updated our domain. Can you hit https://oldsite.com and trace the full redirect chain to confirm it lands on https://newsite.com with a 200?”
Third-party integration uptime spot-check
“Our payment flow depends on https://api.partner.com/health — can you check right now whether it's responding and how fast, so I know if it might be causing our checkout errors?”
Technical details
Endpoint
GEThttps://x402-agent-tools.vercel.app/v1/web/status?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"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"
}
}Tags
x402
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