Transport for Paris, France
HTTP CORS ? Free
RATP Open Data API
API Endpoint
http://data.ratp.fr/api/v1/console/datasets/1.0/search/More Transportation APIs
Access real-time and historical data of any and all airborne aircraft
HTTPS CORS ? Free
Real-time port congestion risk scores, ETA delays and waiting vessels for 15 global ports
HTTPS CORS apiKey
Get name and website-URL for airports by ICAO code
HTTPS CORS ? Free