Danbooru.Donmai returns Authentification fails no matter what I put in for Auth.

[catgirlkara]

I don't see in your documentation anything about Danbooru authentication but their docs say it needs username and api key.
https://danbooru.donmai.us/profile.json?login=your_username&api_key=your_api_key

So far Ive tried empty, my UserId, and my Username for the Auth.UserId field and my API key for the Auth.PasswordHash field. Trying to use your method for finding the actual passwordHash using the inspector console doesnt show anything useful for "adding favorite" on this site. atfbooru also does the same but their api doesnt require authentication.

[verf1x]

Same issue

[xXBuilderBXx]

Found the issue looks like danbooru is blocking the user-agent Mozilla/5.0