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RelayShield Certificate Expiry Checker
x402
RelayShield Certificate Expiry Checker is a paid API for AI agents from api.relayshield.net, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).
Checks the SSL/TLS certificate expiry status for a given domain, returning days remaining, risk level, and a renewal recommendation.
Price / call$0.05
Success—
StatusUnknown
How this service works
Identity security, threat monitoring and intelligence for the agentic AI era. TAP verifier for agentic commerce, MCP Proxy Firewall for AI agents, and threat intelligence APIs backed by 725K indicators across 129 monitored marketplaces.
Output
Returns a JSON object with the domain, certificate issue date, expiry date, whether a certificate was found, days remaining until expiry, a risk level (e.g. LOW, MEDIUM, HIGH), and a human-readable recommendation about whether renewal action is needed.
Example use cases
Pre-launch certificate health check
“Before we go live with launchpad.io tomorrow, can you check the SSL cert expiry status and confirm the risk level is low and there's no urgent action needed?”
Automated DevOps certificate audit
“I need to verify the certificate for api.myplatform.com — check when it expires, how many days are remaining, and whether the renewal automation needs to be confirmed.”
Client website certificate review
“Can you pull the cert expiry info for clientsite.net and tell me the issue date, expiry date, days remaining, and what the recommendation is so I can report back to the client?”
Technical details
Endpoint
POSThttps://api.relayshield.net/v1/payg/cert-expiry?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call SSL certificate expiry lookup with a structured risk assessment and human-readable recommendation, particularly in agent workflows where periodic domain health checks are needed without standing up a full certificate monitoring service.
Side effects
- Domain not found or unreachable — cert_found may be false with no expiry data
- Invalid domain format returns an error
- Certificate lookup timeout for slow-responding domains
- Domain has no SSL certificate configured — cert_found returns false
- Network error reaching the target domain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Domain to check TLS certificate expiry for |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"domain": "acme.com",
"issued_at": "2026-06-07T00:00:00+00:00",
"cert_found": true,
"expires_at": "2026-09-05T00:00:00+00:00",
"risk_level": "MEDIUM",
"days_remaining": 46,
"recommendation": "Certificate renews in 46 days — no action needed yet, but confirm your renewal automation is configured."
}
}
}Tags
x402
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