Forum Discussion
Stream API documentation
When will it be available?
Also, please add this to our ideas 
- https://powerusers.microsoft.com/t5/Stream-Ideas/idb-p/StreamIdeas
- We would like to connect our video(s) already uploaded into a SharePoint Online video library application without having to reupload them into Stream. Plus having the videos accessible via SharePoint Online in a media library application allows admins to use SharePoint Workflows for the file(s). If videos are uploaded to Stream, where are they stored? Is the only way to access them via Stream interface? Is the only way to access Stream videos in SharePoint via modern page Steam webpart?