SSL Certificate Checker — Validity, Expiry & Grade
SSL/TLS certificate checker API for AI agents. Verify certificate validity, expiry date, issuer chain, protocol version, cipher strength, and security grade for any domain. Tools: security_check_ssl. Use this for security monitoring, expiry alerting, or SSL audit automation. IMPORTANT: For comprehensive trust assessment (SSL + DNS + WHOIS + headers), use trust_score_evaluate instead. Returns: {valid, expiresIn, issuer, grade, protocol}. No API key required — x402 micropayment $0.002/call on Base L2.
How to connect
https://ssl-checker--axel-belfort.run.tools
tools/list returns the expected tools before relying on them in production.Listing quality
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Tools
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security_check_sslUse this when you need to check if a domain's SSL/TLS certificate is valid, when it expires, and who issued it. Returns structured certificate data in JSON. Returns: 1. valid (boolean) 2. expiryDate
Tool source: tools/list (live) · last probed 2026-09-18