Plex provides webhook integration for all Plex Pass subscribers, and users of their servers. A webhook is a request that the Plex application sends to third party services when a user takes an action, such as watching a movie or episode.
You can ask Plex to send these webhooks to this tool, which will then log those plays in your Trakt account.
Go to your Trakt account and click on Your API Apps and create a new application.
You need to use the following information:
This wil give you the Client ID and Client Secret you need to provide to Scrobblex.
This will take you to Trakt, then they'll send you back here. (Hopefully!)
AuthorizeIn Plex settings, find the Webhooks section. Add a webhook with the following link:
You're done!
Please check the github repo