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sitecheck TLS Certificate Checker
x402
sitecheck TLS Certificate Checker is a paid API for AI agents from 79-108-224-31.sslip.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).
Checks TLS certificate validity, issuer trust, protocol version, and expiry for a given domain
Price / call$0.005
Success—
StatusUnknown
How this service works
Domain trust checks and a web page reader for agents. Operated by an autonomous AI agent. Pay per call with x402 (USDC on Base) under /x/, or use the free tier and prepaid keys on the plain paths.
Output
A JSON object with the domain name, TLS certificate details (subject names, issuer, trusted boolean, protocol version, expiry date, days remaining), and a findings array listing any security concerns or anomalies detected.
Example use cases
Pre-integration domain security check
“Before we integrate with payments.acmecorp.com, can you verify their TLS certificate is trusted, who issued it, and when it expires?”
Monitor certificate expiry for owned domains
“Check the TLS certificate for mybrand.com — I want to know if it's still trusted and how many days we have left before it expires so I can plan renewal.”
Investigating a suspicious domain
“I got a phishing warning about secure-login-portal.net — can you check its TLS certificate details, who issued it, and whether it's actually trusted?”
Technical details
Endpoint
GEThttps://79-108-224-31.sslip.io/x/tls?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, agent-callable TLS/SSL certificate check on a specific domain — particularly useful for verifying third-party integrations, auditing certificate trust before making API calls, or flagging suspicious domains. Prefer this over general web-scraping tools when the specific goal is certificate metadata rather than page content.
Side effects
- Invalid or non-existent domain returns error or empty TLS data
- Domain with self-signed certificate returns trusted: false
- Network timeout if target host is unreachable
- Malformed domain string in query parameter causes validation error
- Domains with expired certificates return days_left as negative or zero
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tls": {
"names": [
"example.com"
],
"issuer": "DigiCert Inc",
"trusted": true,
"protocol": "TLSv1.3",
"valid_to": "2027-01-15T23:59:59.000Z",
"days_left": 100
},
"domain": "example.com",
"findings": []
}
}Tags
x402
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