It's a core library, which adds features for mod developers to make forge mods easier and also to port Fabric mods to Forge easier.

Example features:

• Biome API - With that you can modify vanilla biomes or add new End or Nether biomes.
• You can register entities, features, etc. without using Forge Registries. (Doesn't work with every type of registry!)
• Compatibility with many mods.
• And so much more!

This is a port of Fabric API made by FabricMC to Forge mod loader. This is still in alpha so expect bugs.

To set up a Forge development environment, check out the Forge MDK and follow the instructions there.

To include Reforged Fabric API in the development environment, add the following to your dependencies block in the gradle buildscript:

implementation fg.deobf("curse.maven:reforged-fabric-api-872386:4721584")

Then add the folowing to your build.gradle file:

repositories {
    maven {
        url "https://cursemaven.com"
    }
}