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One of the priorities for the Metropolitan Transit Authority of Harris County is to be a trusted community partner. One way to partner is to open up our live, real-time data to students, aspiring software developers, and entrepreneurs. With this data and the associated APIs, you can start developing transit based applications for web or mobile devices.

To start, just click on the “Sign in” button below. You’ll only need your Microsoft Account (Windows Live ID) or Google Account credentials. If you don’t already have an MSN or Gmail account, the process is easy and free to obtain one. Go ahead and sign up now, and be a part of the fast-paced and growing world of real-time transit apps.

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API Documentation

  • SIRI

    This service exposes routes, stops, schedules, etc. This service also allows to calculate trips from point A to point B using real-time delay information.


  • Transit Data API

    SIRI is an XML protocol to allow distributed computers to exchange real-time information about public transport services and vehicles.