Library List

This is a rather incomplete list of Minecraft related libraries finished or currently in development.

Name	Description	Author(s)	Language	License	Last Version Supported
CmlLib	C# Game launcher library. Launch all version including forge, Download game, Yggdrasil Authentication	AlphaBs	C#	BY-NC 4.0	All
go-mc	Go library of network protocol, NBT, Yggdrasil, mca file and RCON and so on.	Tnze	Go	MIT	1.14.4
CraftProtocol	Open source partial implementation of Minecraft network protocol and NBT in Python 2.7.	Toranktto	Python	MIT	1.8.x, 1.10.x, 1.12.2
go-yggdrasil	Allows usage of Mojang's Yggdrasil authentication system in Go	JoshuaDoes	Go	MIT	n/a
McProtocol	Packets, NBT, Login, Proxy	hansihe	Elixir	MIT	1.9.2
yggdrasil-py	Open-source Python 3.6+ wrapper for the Mojang Yggdrasil authentication service.	Sam Carson (samcarsonx)	Python	MIT	n/a
MojangSharp	.NET wrapper for Mojang API	Enzo Innocenzi (Hawezo)	C#	Apache License v2	All
Craft.Net	.NET Minecraft client, server, and data manipulation library	Drew DeVault (SirCmpwn)	C#	MIT	1.7.5
fastmc	Python packet parser/writer & utility library	Florian Wesch (dividuum)	Python	MIT	1.7/1.8
node-minecraft-protocol	npm install minecraft-protocol	andrewrk	node.js	BSD	1.7-1.12
mclib	C++ library for creating clients	plushmonkey	C++	MIT	1.10-1.12.1
Phpcraft	A PHP library for all things Minecraft.	timmyRS	PHP	MIT	1.14.4
pyCraft	Python minecraft client library	Ammar Askar (ammaraskar), Jeppe Klitgaard (Dkkline)	Python	Apache License v2	1.8-1.14.3
MCProtocolLib	Java implementation of the Minecraft protocol.	Steveice10	Java	MIT	1.14.3
Ozelot	Rust implementation of MCMODERN networking	C4K3	Rust	Public domain	1.13.2
SharpMinecraftLibrary		ags131, electronicboy	C#	Unknown	1.6.2 (Partial)
Pdelvos Protocol Implementation	.NET client/server protocol library with support for several versions.	pdelvo	C#	MIT	1.5.2
Minecraft PHP Client 2	PHP client and protocol library. With events, actions and API	shoghicp	PHP	WTFPL	1.5.1
libmcnet	Event based, zero-copy, portable Minecraft network protocol parser	deoxxa	C	BSD	1.4
node-mcnet	Node.JS bindings to libmcnet	deoxxa	JavaScript, node.js	BSD	1.3.2
MCPackets	Java Minecraft protocol library	main()	Java	Unknown	1.2.5
libmc--c	World representation data structures and OpenGL drawing functions.	axus	C++, OpenGL	GPLv3	1.1
mcproxy	Minecraft Proxy (and bot) framework in C++	mave	C++	GPLv3	1.1
fNbt	Reading, writing, and manipulating NBT files and streams, for .NET	Matvei Stefarov (fragmer)	C#	BSD	n/a
Yggdrasil.php	Interfacing with Mojang's Yggdrasil authentication system.	Jim C K Flaten (Jckf)	PHP	Unknown	n/a
libMC.Net	.NET Minecraft interaction library	umby24	C#	MIT	1.7.4
MineLib.Network	.NET Minecraft network client interaction library.	Aragas (Aragasas)	C#	MIT	1.8
NBT-Lib	Allows reading, writing and modification of NBT files and streams.	Evil-Co	Java	Apache License v2	n/a
DarkBot	Minecraft client, automation (AI) platform, and modular protocol library	DarkStorm	Java	BSD	1.5.2-1.7.9
NBTField	Another NBT library in C++	Socolin	C++	MIT	n/a
mclaunch-util-lib	Yggdrasil library in Java, has handy features for launchers.	Kronos	Java	MIT	n/a
OpenLauncherLib	Minecraft launching library written from scratch	Adrien "Litarvan" Navratil	Java	LGPL	1.0.0-1.9.2
S-Update	Powerful and simple Java update system, with Minecraft support. Works with a PHP Server	Adrien "Litarvan" Navratil	Java	LGPL	1.0.0-1.9.2
OpenAuth	Yggdrasil library, with possibility to give an other authentication server, it also has its own auth server.	Adrien "Litarvan" Navratil, Valentin "Vavaballz"	Java	LGPL	1.0.0-1.9.2
text	An open-source MIT-licensed library for working with text from Minecraft.	Jamie Mansfield	Java	MIT	1.11.2
JMCCC	A powerful open-source library for launching and downloading Minecraft.	to2mbn	Java	MIT	All
Quarry	Quarry is a Python library that implements the Minecraft protocol.	barneygale	Python	MIT	1.14.2