Risk scoring service from curated threat intelligence data.
Threat Jammer API is a free Security API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Threat intelligence: incident clusters, validated IOCs, CVEs, ransomware leak-site victims
SSL certificate validity, domain WHOIS status, and DNS record checks for any domain
Yes. The Threat Jammer API is listed in the Security category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Threat Jammer API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Threat Jammer API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Threat Jammer API is served over HTTPS, so it's safe to use in production.