When you click "Retrieve PIN" below, you will be taken to a Trakt web page. Log in and allow your application access to your Trakt account. Trakt will display a PIN. Copy that PIN and paste it into the "Trakt PIN" field below.

If you have a PIN you generated in the last few minutes, enter it below.
When you click "Authenticate with MyAnimeList" below, you will be taken to a MyAnimeList web page. Log in and click the Allow option. You will be redirected to a localhost URL that will not load. Copy that localhost URL and paste it into the "MyAnimeList Localhost URL" field below.