Using our API’s


Login, Authentication and authorization:

Register with the TDEI; obtain and use an API key and credentials to become a verified data producer.

Transportation Data Equity initiative Logo

Detailed information on the Transportation Data Equity API with Swagger documentation. The documentation includes explanations of its endpoints, input parameters, expected output, error messages, and usage examples.

This API is intended for applications producing data for and consuming data from the TDEI system. This API supports publishing of GTFS-Pathways, GTFS-Flex v2 and OpenSidewalks data to the TDEI.


Still having trouble? contact us for support on using our API’s as a data consumer or producer transitequity@cs.washington.edu

Coming Soon:

  • Code samples that developers can use to quickly get started with the API.
  • Reference materials: API glossaries, FAQs, and troubleshooting guides.
  • Tutorials and guides: step-by-step guides to help developers learn how to use the API.
  • Support and community resources: You can reach us and the OpenSidewalks Slack channel by subscribing here.
  • Terms of service: API’s terms of service including any usage limits, restrictions, and data tenant licensing agreements.

The TDEI API is developer-centric, regionally-agnostic and extendable. It defines a transportation data endpoint for sharing open data, encouraging innovation in applications offering equitable mobility and access to transportation. It ensures consistent, interoperable configuration across all environments. And it’s open source!

Anat Caspi

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