PlayerEX: Directors Cut is port of PlayerEx, a mod built using Fabric that adds RPG themed attributes to the game and the player. It is available to download from Curseforge and Modrinth.
Find the original mod here!
In addition to attributes powered by Data Attributes: Directors Cut, PlayerEX: Directors Cut adds a levelling system and skill points to spend, enabled through a nonintrusive vanilla-styled gui accessible from the inventory or by hotkey. For further documentation, as well as how to use the PlayerEX:Directors Cut API in your own project, please see the wiki.