Spigot is a fork of Craftbukkit, which was the original API for facilitating server plugins.
Spigot takes things much further by providing additional optimizations and utilities. As Craftbukkit is no longer being actively developed (although still maintained by Spigot), Spigot has become the primary solution for creating a Minecraft server with plugins.
Backed by a large and active community, Spigot enables you to add all kinds of different plugins that will alter the Minecraft experience for end users.
We provide several Spigot releases for you to use for your server and we keep them udpated regularly.