Transport for Washington, US

About Transport for Washington, US

The developer portal provides APIs from the Washington Metropolitan Area Transit Authority (WMATA), covering Metro rail and bus data including train arrivals, bus predictions, and schedules. Access to the APIs is free of charge, and the portal includes auto-generated API documentation with code samples in multiple languages, along with an API console for testing requests directly in the browser.

The APIs include GTFS static and GTFS-RT (real-time) feeds for rail and bus, including a combined rail and bus GTFS static feed. The feed data includes station platforms, levels, pathways, and stop locations, supporting use cases such as trip planning, wayfinding, accessibility routing, and mapping station entrances and platforms.

The portal is intended for developers building web or mobile applications that use Metro transit data. Support is available via email for general API questions and separately for GTFS/GTFS-RT questions, and a news feed is offered for API-related announcements.

Key features

• Real-time train arrival predictions
• Real-time bus arrival predictions
• Rail and bus schedules and static data
• GTFS and GTFS-RT feeds for rail and bus, including platforms, levels, and pathways
• Interactive API console for testing endpoints directly in the portal
• Auto-generated API documentation with code samples in multiple languages

Frequently asked questions