Java wrapper for the MTA Bus and Subway API

⚠️ The MTA API Terms and Conditions prohibits developers from giving users direct access to MTA servers. Any realtime data that is retrieved in this library must be served to users on your own servers.

OneMTA is a Java wrapper for the MTA SIRI REST API and MTA Realtime GTFS API.

📃 Installation

OneMTA requires at least Java 8.

OneMTA also requires the protobuf-java library to be installed. Make sure you are using the same version as specified in the pom.xml file.

Compiled binaries can be installed from:

🔑 Authentication

  1. Request a bus token at https://bt.mta.info/wiki/Developers/Index.
  2. Request a subway token at https://api.mta.info/#/signup.
  3. OneMTA requires static data from the MTA for most route and stop information. Latest static data for the MTA is available at http://web.mta.info/developers/developer-data-terms.html#data.

    Static data is only required for the endpoints you are using. For busses all boroughs are required, along with bus company.

    static datafeeds

  4. Initialize OneMTA
    MTA mta = MTA.create(
        DataResource.create(DataResourceType.Bus_Bronx, new File("google_transit_bronx.zip")),
        DataResource.create(DataResourceType.Bus_Brooklyn, new File("google_transit_brooklyn.zip")),
        DataResource.create(DataResourceType.Bus_Manhattan, new File("google_transit_manhattan.zip")),
        DataResource.create(DataResourceType.Bus_Queens, new File("google_transit_queens.zip")),
        DataResource.create(DataResourceType.Bus_StatenIsland, new File("google_transit_staten_island.zip")),
        DataResource.create(DataResourceType.Bus_Company, new File("google_transit_bus_company.zip")),
        DataResource.create(DataResourceType.Subway, new File("google_transit_subway.zip")),
        DataResource.create(DataResourceType.LongIslandRailroad, new File("google_transit_lirr.zip")),
        DataResource.create(DataResourceType.MetroNorthRailroad, new File("google_transit_mnr.zip"))

✨ Features

🗺 Routes

Retrieve routes along with alerts and vehicles on the route.

Bus.Route M1    = mta.getBusRoute("M1", DataResourceType.Bus_Manhattan);
Subway.Route SI = mta.getSubwayRoute("SI");
LIRR.Route PW   = mta.getLIRRRoute(9);
MNR.Route HM    = mta.getMNRRoute(2);

🚏 Stops

Retrieve stops with alerts and vehicles en route.

Bus.Stop stop   = mta.getBusStop(400561);
Subway.Stop GCT = mta.getSubwayStop("631");
LIRR.Stop FLS   = mta.getLIRRStop("FLS");
MNR.Stop WLN    = mta.getMNRStop("1WN");

🚍 Vehicles

Retrieve live vehicle information from stops and routes.

Bus.Vehicle[] busses     = stop.getVehicles();
Subway.Vehicle[] subways = SI.getVehicles();
LIRR.Vehicle[] lirr      = PW.getVehicles();
MNR.Vehicle[] mnr        = WLN.getVehicles();

⚠️ Alerts

Retrieve alerts for all stops and routes.

Bus.Alert[] busAlerts       = mta.getBusAlerts();
Subway.Alert[] subwayAlerts = SI.getAlerts();
LIRR.Alert[] lirrAlerts     = FLS.getAlerts();
MNR.Alert[] mnrAlerts       = mta.getMNRAlerts();

👨‍💻 Contributing

GitHub CopilotOpen AIGitHub CopilotOpen AI

AI generated code is strictly prohibited on this repository.

Sample response data available on the reference branch.

🗺 Updating Protobuf Files

  1. Run install.sh


    Install protobuf and gtfs realtime proto manually

  2. Change options and imports as defined in the protobuf.sh comments.
  3. Run protobuf.sh.
  4. Change all classes to abstract package private and add SuppressWarnings("all").

⚠️ Notice About Tests

  • Tests are most reliable around rush hour.
  • Tests may not work during overnight hours.
  • Route tests may not work if the selected routes are out of service.
  • Stop tests may not work it the selected stops are out of service.
  • Alert tests may not work if no alerts are active.

💻 Running Tests Locally

For local tests you can use Java 8+, however only methods in the Java 8 API may be used. The src/main/java9 folder should not be marked as a source root.

  • (Bus) Run tests locally by adding a text file named bus.txt that contains the bus token in the src/test/java/resources directory.
  • (Subway) Run tests locally by adding a text file named subway.txt that contains the subway in the src/test/java/resources directory.

🌐 Running Tests using GitHub Actions

Devs running remote tests through GitHub Actions may do so by running the MTA CI workflow manually in the actions tab of your fork. Note that this requires two secrets, a BUS_TOKEN which contains the bus token, and a SUBWAY_TOKEN which contains the subway token.

💼 License

This library is released under the GNU General Public License (GPL) v2.0.

⚠️ Disclaimer

  • @Katsute and @KatsuteDev are not affiliated with the MTA.
  • By using the MTA API you are subject to their Terms and Conditions.

    In developing your app, you will provide that the MTA data feed is available to others only from a non-MTA server. Accordingly, you will download and store the MTA data feed on a non-MTA server which users of your App will access in order to obtain data. MTA prohibits the development of an app that would make the data available to others directly from MTA’s server(s).


Developer & Maintainer
November 2021
February 2022
Last Updated
August 2023

In order to create applications and systems dependent on the MTA API, this library was created to simply the usage of the MTA Bus REST API and the MTA Subway Realtime GTFS API. Condenses these two poorly documented APIs into a singular, well documented Java library.

Long Term Support

Built with
  • Java
  • Apache Maven
Built using
  • IntelliJ
  • GitHub
  • GitHub Actions
Built for
  • Java