| ADS-B Exchange | Access real-time and historical data of any and all airborne aircraft | No | Yes | Unknown |
| airportsapi | Get name and website-URL for airports by ICAO code | No | Yes | Unknown |
| AIS Hub | Real-time data of any marine and inland vessel equipped with AIS tracking system | apiKey | No | Unknown |
| Amadeus for Developers | Travel Search - Limited usage | OAuth | Yes | Unknown |
| apilayer aviationstack | Real-time Flight Status & Global Aviation Data API | OAuth | Yes | Unknown |
| AviationAPI | FAA Aeronautical Charts and Publications, Airport Information, and Airport Weather | No | Yes | No |
| AZ511 | Access traffic data from the ADOT API | apiKey | Yes | Unknown |
| Bay Area Rapid Transit | Stations and predicted arrivals for BART | apiKey | No | Unknown |
| BC Ferries | Sailing times and capacities for BC Ferries | No | Yes | Yes |
| BIC-Boxtech | Container technical detail for the global container fleet | OAuth | Yes | Unknown |
| BlaBlaCar | Search car sharing trips | apiKey | Yes | Unknown |
| Boston MBTA Transit | Stations and predicted arrivals for MBTA | apiKey | Yes | Unknown |
| Community Transit | Transitland API | No | Yes | Unknown |
| Compare Flight Prices | API for comparing flight prices across platforms | apiKey | Yes | Unknown |
| CTS | CTS Realtime API | apiKey | Yes | Yes |
| Grab | Track deliveries, ride fares, payments and loyalty points | OAuth | Yes | Unknown |
| GraphHopper | A-to-B routing with turn-by-turn instructions | apiKey | Yes | Unknown |
| Icelandic APIs | Open APIs that deliver services in or regarding Iceland | No | Yes | Unknown |
| Impala Hotel Bookings | Hotel content, rates and room bookings | apiKey | Yes | No |
| Izi | Audio guide for travellers | apiKey | Yes | Unknown |
| Land Transport Authority DataMall, Singapore | Singapore transport information | apiKey | No | Unknown |
| Metro Lisboa | Delays in subway lines | No | No | No |
| Navitia | The open API for building cool stuff with transport data | apiKey | Yes | Unknown |
| Open Charge Map | Global public registry of electric vehicle charging locations | apiKey | Yes | Yes |
| OpenSky Network | Free real-time ADS-B aviation data | No | Yes | Unknown |
| Railway Transport for France | SNCF public API | apiKey | Yes | Unknown |
| REFUGE Restrooms | Provides safe restroom access for transgender, intersex and gender nonconforming individuals | No | Yes | Unknown |
| Sabre for Developers | Travel Search - Limited usage | apiKey | Yes | Unknown |
| Schiphol Airport | Schiphol | apiKey | Yes | Unknown |
| Tankerkoenig | German realtime gas/diesel prices | apiKey | Yes | Yes |
| TransitLand | Transit Aggregation | No | Yes | Unknown |
| Transport for Atlanta, US | Marta | No | No | Unknown |
| Transport for Auckland, New Zealand | Auckland Transport | No | Yes | Unknown |
| Transport for Belgium | The iRail API is a third-party API for Belgian public transport by train | No | Yes | Yes |
| Transport for Berlin, Germany | Third-party VBB API | No | Yes | Unknown |
| Transport for Bordeaux, France | Bordeaux Métropole public transport and more (France) | apiKey | Yes | Unknown |
| Transport for Budapest, Hungary | Budapest public transport API | No | Yes | Unknown |
| Transport for Chicago, US | Chicago Transit Authority (CTA) | apiKey | No | Unknown |
| Transport for Czech Republic | Czech transport API | No | Yes | Unknown |
| Transport for Denver, US | RTD | No | No | Unknown |
| Transport for Finland | Finnish transport API | No | Yes | Unknown |
| Transport for Germany | Deutsche Bahn (DB) API | apiKey | No | Unknown |
| Transport for Grenoble, France | Grenoble public transport | No | No | No |
| Transport for Hessen, Germany | RMV API (Public Transport in Hessen) | No | Yes | Unknown |
| Transport for Honolulu, US | Honolulu Transportation Information | apiKey | No | Unknown |
| Transport for Lisbon, Portugal | Data about buses routes, parking and traffic | apiKey | Yes | Unknown |
| Transport for London, England | TfL API | apiKey | Yes | Unknown |
| Transport for Los Angeles, US | Data about positions of Metro vehicles in real time and travel their routes | No | Yes | Unknown |
| Transport for Manchester, England | TfGM transport network data | apiKey | Yes | No |
| Transport for Norway | Transport APIs and dataset for Norway | No | Yes | Unknown |
| Transport for Ottawa, Canada | OC Transpo API | apiKey | Yes | Unknown |
| Transport for Paris, France | RATP Open Data API | No | No | Unknown |
| Transport for Philadelphia, US | SEPTA APIs | No | No | Unknown |
| Transport for Sao Paulo, Brazil | SPTrans | OAuth | No | Unknown |
| Transport for Spain | Public trains of Spain | No | Yes | Unknown |
| Transport for Sweden | Public Transport consumer | OAuth | Yes | Unknown |
| Transport for Switzerland | Official Swiss Public Transport Open Data | apiKey | Yes | Unknown |
| Transport for Switzerland | Swiss public transport API | No | Yes | Unknown |
| Transport for The Netherlands | NS, only trains | apiKey | No | Unknown |
| Transport for The Netherlands | OVAPI, country-wide public transport | No | Yes | Unknown |
| Transport for Toronto, Canada | TTC | No | Yes | Unknown |
| Transport for UK | Transport API and dataset for UK | apiKey | Yes | Unknown |
| Transport for United States | NextBus API | No | No | Unknown |
| Transport for Vancouver, Canada | TransLink | OAuth | Yes | Unknown |
| Transport for Washington, US | Washington Metro transport API | OAuth | Yes | Unknown |
| transport.rest | Community maintained, developer-friendly public transport API | No | Yes | Yes |
| Tripadvisor | Rating content for a hotel, restaurant, attraction or destination | apiKey | Yes | Unknown |
| Uber | Uber ride requests and price estimation | OAuth | Yes | Yes |
| Velib metropolis, Paris, France | Velib Open Data API | No | Yes | No |
