Media APIs

How do I add a "watch now at youtube" button on my tweet (2)
Retiring MP4 Video output ( 2 ) (30)
Wrong video specification in API docs? (1)
Geo Blocking Video Media (7)
Media Post Failing (10)
Media upload with post status/update with media_id is successful but image not showing up in twitter post (2)
Closed Captions / Subtitles (SRT) in Media Studio (1)
Deleting a stuck video upload (1)
Shared media to be used when needed (like welcome message) (1)
Twitter video upload fail on Android (5)
I can not attach the 'shared=true' flag to the INIT upload (2)
Media/uploads (INIT)(APPNED)(FINALIZE) succuss but video not showing on twitter (2)
Access Media link in docs leads to nonexistent page (2)
Embedded tweet shows video but nothing in JSON references it (6)
Unable to upload video on twitter (3)
Media id expires about 24 hours? (1)
Consistently receiving 500 error posting to media/upload (3)
Set name for uploaded media (1)
Chunked video upload not working (2)
Closed Caption support? (6)
Sending direct messages with media (3)
Posting Tweet with Media (7)
Getting 500 Internal server error when trying to create a media creative (3)
Sending direct messages with media (3)
API animated gif file size limit (2)
Media Upload Chunked Init - authentication error (2)
Unable to post image via API v1.1 (7)
Trouble Uploading Media for Tweet in Google Apps Script (1)
Upload videos longer than 140s for Media Studio partners (1)
Twitter Media Studio API (2)