Phishing database.
PhishStats API is a free Security API that requires no API key, 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.
Generate merchant-specific and one-time use credit card numbers that link back to your bank
Face liveness, presentation-attack detection and 1:1 face match for identity verification
Yes. The PhishStats 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.
No. The PhishStats API requires no authentication, so you can start making requests without signing up.
CORS support for the PhishStats API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The PhishStats API is served over HTTPS, so it's safe to use in production.