WolfyScript

Easily create custom recipes via an in-game GUI, including Crafting, Cooking, Smithing, etc. Use advanced config features to merge/copy NBT from ingredients to results, and run Extensions on recipe completion.

Core API & Utils for Spigot based plugins. Inventory GUI, Language, JSON (Jackson), and many more utils

Simple wrappers for Minecraft classes that make it easier to develop cross-platform APIs, as well as extra tools to help with cross-platform plugin and mod development.