YUNG’s API is a library currently only used for the Fabric version of the Better Mineshafts mod. Perhaps YUNG will release more add-ons soon that require this API. The library itself does not add anything into the game, install only if it is indicated in the mod installation instructions.
How to install YUNG`s API
- Make sure you have installed Fabric Mod Loader and Fabric API..
- Download the file for your version of the game.
- Put it in the ‘mods’ folder, which is located in the game folder.