Google Maps
HTTPS CORS ? apiKey
Create/customize digital maps based on Google Maps data
API Endpoint
https://developers.google.com/maps/More 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