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Agent Tools UK – Site Uptime & SSL Check
x402
Agent Tools UK – Site Uptime & SSL Check is a paid API for AI agents from agent-tools-production-e6aa.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).
Checks whether a website is currently up by returning HTTP status, response time, full redirect chain, and SSL certificate details including issuer and days until expiry.
Price / call$0.002
Success—
StatusUnknown
How this service works
Check whether a website is up right now: HTTP status, response time in ms, full redirect chain, and the SSL certificate's validity, issuer and days until expiry. Use when monitoring a site, diagnosing a broken link, or warning that a certificate is about to expire. A site that is down still returns 200 with up:false and the error. Errors: 400 bad or private URL.
Output
A JSON object with: a boolean 'up' field indicating if the site is reachable, the final HTTP status code, response time in milliseconds, the full redirect chain as an ordered list of URLs, and SSL certificate details including validity status, issuer name, and days until expiry. If the site is down, 'up' is false and an error message is included explaining the failure.
Example use cases
Pre-launch website health check
“Before I announce the new site, can you check that https://myshop.co.uk is actually up, responding quickly, and that the SSL cert is valid with plenty of days remaining?”
Expiring SSL certificate alert
“Check https://clientportal.acmecorp.com and tell me who issued the SSL certificate and exactly how many days until it expires — I think it might be about to run out.”
Broken redirect diagnosis
“Something seems wrong with https://old.myblog.com — can you check if it's up and show me the full redirect chain so I can see where it's ending up?”
Technical details
Endpoint
GEThttps://agent-tools-production-e6aa.up.railway.app/v1/site-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, real-time health snapshot of a single public website — particularly when SSL certificate monitoring or redirect chain diagnosis is required. It is ideal for agents that need to proactively warn users about expiring certificates or confirm a site is reachable before linking to it.
Side effects
- 400 error returned for malformed, private, or non-public URLs (e.g. localhost, internal IPs)
- SSL details may be absent if the site uses plain HTTP
- Timeout or connection refused if the target server is completely unreachable
- Redirect chain may be incomplete if a redirect loop is detected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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