{"entry":{"slug":"crtsh-api","name":"crt.sh Certificate Search","category":"api","summary":"Certificate transparency lookup for a domain.","description":"Search issued TLS certificates and discover subdomains from CT logs.","auth_mode":"none","endpoint":"https://crt.sh","docs_url":"https://crt.sh","tags":["security","tls","osint"],"capabilities":["certificate_search","subdomain_discovery"],"auth_params":[],"input_format":"query params","output_format":"json","rate_limit":"","pricing":"free","invocation_example":"curl -s \"https://crt.sh/?output=json&q=example.com&limit=1\"","verified":false,"verified_at":null,"featured":false,"checks_total":58,"checks_ok":31,"avg_latency_ms":4026,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-02T00:18:40.574+00:00","health_latency_ms":10141,"probe_url":null},"watch":{"hint":"Follow \"crtsh-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"crtsh-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}