Transport for Chicago, US API alternatives

The CTA's Developer Center offers a variety of data feeds that allow anyone to develop Web, mobile and other applications to help transit riders throughout the Chicago area. If it doesn't fit your project, here are the 10 best free Transportation APIs to use instead in 2026, out of 93 in the directory.

1. 1

   AirportMiles API

   Online · 748 ms

   Airport codes, distances, routes and passenger numbers as static JSON files.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   Aviation Safety Data API

   Online · 700 ms

   164,068 aircraft accident narratives from 128 official investigation authorities, plus FAA data.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   Can I enter API

   Online · 521 ms

   Visa and entry requirements for 199 passports, cited to official sources, verified daily.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   ConnectMeGuru API

   Online · 793 ms

   Search and purchase prepaid travel eSIM data plans across 190+ countries.

   • No API key needed
   • Returns JSON at its URL
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
5. 5

   GTFS Scorecard API

   Online · 1021 ms

   Data-quality grades and prioritized fixes for 2,400+ public transit GTFS feed records.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
6. 6

   OpenVan API

   Online · 795 ms

   Fuel prices for 121 countries, food cost index & vanlife weather scores for RV travel.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
7. 7

   Railworks API

   Online · 950 ms

   Irish Rail planned engineering works: affected stations, DART closures, change log and ICS feeds.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8

   Transport for Norway API

   Online · 83 ms

   Transport APIs and dataset for Norway.

   • No API key needed
   • Fast: 83 ms response
   • HTTPS

   No authHTTPSCORS ?
9. 9

   Aether-X Port Congestion Oracle API

   Online · 365 ms

   Predictive port congestion, ETA delay and freight volatility signals for 16 global ports.

   • Fast: 365 ms response
   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
10. 10

    Apimetro API

    Online · 866 ms

    Geospatial data for Mexico City public transport system (Metro, Metrobús, Cablebús, RTP, etc.).

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS

    No authHTTPSCORS

Transport for Chicago, US API vs alternatives

Transport for Chicago, US API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
Transport for Chicago, US	Required	No	Unknown	Up	1922 ms	Not rated
AirportMiles	No	Yes	Yes	Up	748 ms	Not rated
Aviation Safety Data	No	Yes	Yes	Up	700 ms	Not rated
Can I enter	No	Yes	Yes	Up	521 ms	Not rated
ConnectMeGuru	No	Yes	Yes	Up	793 ms	Not rated
GTFS Scorecard	No	Yes	Yes	Up	1021 ms	Not rated
OpenVan	No	Yes	Yes	Up	795 ms	Not rated
Railworks	No	Yes	Yes	Up	950 ms	Not rated
Transport for Norway	No	Yes	Unknown	Up	83 ms	Not rated

See also: best Transportation APIs · all Transportation APIs