IP geolocation and currency conversion.
geoPlugin API is a free Geocoding API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
IP geolocation API and plugin with 99.9% accuracy. Detect country, city, currency, ASN in real time. No API key required. Works with WordPress, Shopify, Webflow.
Details from geoplugin.com.

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.
Country-related data like currencies, languages, flags, regions+subregions and bordering countries
The geoPlugin API is provided by GeoPlugin (geoplugin.com). IP geolocation API and plugin with 99.9% accuracy. Detect country, city, currency, ASN in real time. No API key required. Works with WordPress, Shopify, Webflow.
Yes. The geoPlugin 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.
No. The geoPlugin API requires no authentication, so you can start making requests without signing up.
Yes. The geoPlugin API supports CORS, so front-end JavaScript can call it directly.
Yes. The geoPlugin API is served over HTTPS, so it's safe to use in production.