Docker + Minecraft = Dockercraft

The Minecraft Mod API

Terasology - open source voxel world

Render high-resolution maps of a Minecraft world with a Google Maps powered interface

Modifications to the Minecraft base files to assist in compatibility between mods.

A custom Minecraft compatible game server written in C++

Minecraft for hipsters

PocketMine-MP is a server software for Minecraft: Pocket Edition. It has a Plugin API that enables a developer to extend it and add new features, or change default ones

Write Minecraft Plugins in JavaScript.

An in-game voxel map editor for Minecraft

An init script for managing Minecraft servers

Essentials - Minecraft server command mod - Adds over 100 commands for use in-game to help manage a server

BungeeCord, the 6th in a generation of server portal suites. Efficiently proxies and maintains connections and transport between multiple Minecraft servers.

Home of the OpenComputers mod for Minecraft.

A magic mod for Minecraft based on nature and plant life. Also literally the seed of all evil on the modding community.

Create Minecraft bots with a powerful, stable, and high level JavaScript API.

An advanced Space Dimension Mod for Minecraft

Minecraft mod, take 2

A Minecraft hubot adapter

Hubot's very own Minecraft skin