{"name":"ssl-certificate-check","description":"Check a domain's current TLS certificate without opening a raw socket. Send a host and it queries Certificate Transparency logs (crt.sh, with a Cert Spotter fallback) to return the active certificate's issuer, subject, SAN list, validity window, days_until_expiry, signature algorithm, and key size; pass history:true to also get past certificate entries. Use it as an SSL certificate checker, TLS certificate expiry API, cert transparency lookup, or domain HTTPS monitoring tool for catching certs before they lapse or auditing who issued a site's TLS cert.","price":"$0.03","method":"POST","input_schema":{"properties":{"host":{"type":"string","description":"Hostname to inspect, e.g. 'example.com'. Normalized (scheme/port stripped)."},"history":{"type":"boolean","description":"Include up to 50 historical certificates for the host. Optional, default false."}},"required":["host"]},"input_example":{"host":"example.com"},"output_example":{"host":"example.com","issuer_common_name":"Cloudflare TLS Issuing ECC CA 3","days_until_expiry":60},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}