How do you upload user images to imgur without making user authenticate to imgur ie, I would like to upload on behalf of the application(subscribed to freemium plan) not the user. I came across the oauth api for imgur but I think I don't want that ?
I want to upload profile pics of users to imgur but without making users aware of this fact or them needing to register/sign in for imgur.
Register your imgur app from this link and save client keys.
After that you can upload images anonymously and retrieve image link as this API doc guide.