Best Transportation APIs in 2026

The top 15 of 94 free Transportation APIs, ranked by how easy they are to start with (API key, HTTPS, CORS), how reliable they are in our daily health checks, and what developers rate them. AirportMiles API takes the top spot.

Last tested Oct 24, 2026 · Rankings update daily

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
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
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
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
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
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
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
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
9B
BC Ferries API
Online · 793 ms
Sailing times and capacities for BC Ferries.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
10T
Transport for Belgium API
Online · 792 ms
The iRail API is a third-party API for Belgian public transport by train.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
11
Transport for Norway API
Online · 83 ms
Transport APIs and dataset for Norway.
- No API key needed
- Fast: 83 ms response
- HTTPS
No authHTTPSCORS ?
12T
transport.rest API
Online · 1049 ms
Community maintained, developer-friendly public transport API.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
13
ArcNautical API
Online · 1404 ms
Screen any ship by IMO for OFAC/EU/UN/UK sanctions, ownership opacity and a vetting grade.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
14
ChargeAlong API
Online · 1548 ms
EV charging sites in AU, NZ, US, UK and Canada, with nearby search and trip planning.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
15
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

Transportation APIs compared

Top Transportation APIs compared
API	API key	HTTPS	CORS	Uptime	Response	Rating
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
Apimetro	No	Yes	Yes	Up	866 ms	Not rated
BC Ferries	No	Yes	Yes	Up	793 ms	Not rated
Transport for Belgium	No	Yes	Yes	Up	792 ms	Not rated

More Transportation APIs

Best Transportation API FAQ

What is the best free Transportation API in 2026?

Based on access, reliability and developer ratings, the top free Transportation APIs right now are AirportMiles API, Aviation Safety Data API and Can I enter API. AirportMiles API ranks first. Rankings update daily from health checks of all 94 Transportation APIs in the directory.

What is the best Transportation API without an API key?

AirportMiles API, Aviation Safety Data API and Can I enter API need no API key, so you can call them without signing up. 44 of the 94 ranked Transportation APIs are keyless.

Which Transportation API works from the browser?

AirportMiles API, Aviation Safety Data API and Can I enter API support CORS over HTTPS, so front-end JavaScript can call them directly without a proxy.

How are these APIs ranked?

Each API gets a score from: no API key (+), HTTPS (+), CORS support (+), 30-day uptime and response time from our daily health checks, and ratings from developers on this site. APIs that failed three checks in a row are left out until they recover.