This article shows how to add any map from MapTiler Cloud into Tableau:
Get a Tableau TMS file from MapTiler Cloud
First login to your MapTiler Cloud account and go to the maps page.
Click on the map style that you want to add to Tableau, it could be one of our standard maps or one of your own creations.
Scroll down to the bottom of the options for the map style to find the Download TMS button.
The TMS file contains instructions for Tableau to access your MapTiler Account with your API Key.
Keep your TMS files secure and don't share them as they contain your API Key.
They will be saved in the same location as your regular browser downloads.
Import your map into Tableau
Now open Tableau and import the TMS file here: Map -> Background Maps -> Manage Maps...
Click on the Import... button
Import your TMS file and enjoy the beautiful map from your MapTiler Cloud account!