Zippopotam.us
HTTP CORS ? Free
Get information about place such as country, city, state, etc
API Endpoint
http://www.zippopotam.usMore Geocoding APIs
Geolocate website visitors from their IPs
HTTPS CORS apiKey
Actinia is an open source REST API for geographical data that uses GRASS GIS
HTTPS CORS ? apiKey
Get all administrative divisions of a country
HTTPS CORS Free