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The Sound Transit Developer portal is here to give you the tools you need for your applications, Web sites and blogs.

Using our tools is simple and free. We only ask three things:

  • Read and agree to our "Terms of Use"
  • Keep Sound Transit information current. We make it easy, we'll let you know when we have new or updated data. Just sign up.
  • Let us know what you're working on. We are interested in hearing about how you are using the data we provide, and what ideas you have to make it more useful to you.

Developer community resources

OneBusAway (OBA)
To request an OBA API key please visit the OneBusAway API Service site to learn how. 

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