ipgeolocationapi
IP geolocation with ASN, timezone, currency and threat data, 5,000 keyless calls a day
Free Geolocation tools and APIs for country, region, city and time zone lookup by IP address.
IPInfoDB API is a free Geocoding 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.
IP geolocation with ASN, timezone, currency and threat data, 5,000 keyless calls a day
Unlimited free IP Address API with useful information
Yes. The IPInfoDB API is listed in the Geocoding 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 IPInfoDB API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the IPInfoDB API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The IPInfoDB API is served over HTTPS, so it's safe to use in production.