MPK Mod is a minecraft mod for 1.8 - 1.19 that adds some features for minecraft parkour to your client. It's a client side only mod, that means it can be used on any server.
To install MPK Mod you need to have forge installed.
To use the Mod you have to download the file mpkmod-X.X.X-MCX.X.jar (for example mpkmod-2.0.0-MC1.8.9) from releases (MPK Mod 1.x.x) or pre-releases (MPK Mod 2.x.x) and put it into your mods folder which is located in .minecraft.