Bukkit

Vault is a Economy/Permission plugin for hooking into the various Economy and Permission plugins.

PermissionsEx

Create modern looking holograms.

Plugin Manager For Bukkit

CS-CoreLib

Creates images and pixel-art using in-game blocks

Slimefun

Create user friendly menus to travel to worlds

An API for all of Zombie_Striker's plugins

Library for intercepting sent and receieved Minecraft packets.

This is an Addition to LobbyAPI which allows the menu to show the world "world"

A Simple way of creating worlds for LobbyAPI

A Simple way of adding Bungee Servers for LobbyAPI

A bukkit plugin for adding neural networks into minecraft.

CoreProtect

A simple homes plugin for quick navigation of a world

Disguise as a mob or other player

Fully customize any mobs (and create custom mobs) with a powerful scripting skill system, attributes, equipment, special AI, and much more, along with custom spawners and spawning rules. The ultimate plugin for making RPG servers and minigames.

Expand the capabilities of Skript with skRayFall

Massive Core