What I can find online is all about retrieving information from Vine (through undocumented APIs). How can I upload the video in my app to Vine programmatically?
I j
I found this: https://github.com/VineAPI/VineAPI/blob/master/endpoints.md
You need to use these requests: Login, Upload thumbnail, Upload video, Create post.
I don't know if it works or not, you have to try. In any case, the use of undocumented (private) API can lead to bad consequences.