Paper inherits its licensing from upstream projects.
As such, Paper is licensed under the GNU General Public License version 3; as it inherits it from Spigot, who in turn inherits it from the original Bukkit and Craftbukkit projects.
Any author who is not listed below should be presumed to have released their work under the original GPL license.
In the interest of promoting a better Minecraft platform for everyone, contributors may choose to release their code under the more permissive MIT License.
The authors listed below have chosen to release their code under that more permissive MIT License. Any contributor who wants their name added below should submit a pull request to this project to add their name.
Zach Brown <zach.brown@destroystokyo.com>
Daniel Ennis <aikar@aikar.co>
Kyle Wood <demonwav@gmail.com>
kashike <kashike@vq.lc>
Black Hole <black-hole@live.com>
Mark Vainomaa <mikroskeem@mikroskeem.eu>
Mystiflow <mystiflow@gmail.com>
Shane Freeder <theboyetronic@gmail.com>
Gabscap <git@gabscap.de>
Jadon Fowler <jadonflower@gmail.com>
chickeneer <emcchickeneer@gmail.com>
Minecrell <minecrell@minecrell.net>
Techcable <Techcable@outlook.com>
BillyGalbreath <blake.galbreath@gmail.com>
MiniDigger <admin@minidigger.me>
Brokkonaut <hannos17@gmx.de>
vemacs <d@nkmem.es>
stonar96 <minecraft.stonar96@gmail.com>
Hugo Manrique <hugmanrique@gmail.com>
Andrew Steinborn <git@steinborn.me>
willies952002 <admin@domnian.com>
MicleBrick <miclebrick@outlook.com>
Trigary <trigary0@gmail.com>
rickyboy320 <rickw320@hotmail.com>
DoNotSpamPls <7570108+DoNotSpamPls@users.noreply.github.com>
JRoy <joshroy126@gmail.com>
Robert Norman <spottedleaf@spottedleaf.dev>, <Spottedleaf@users.noreply.github.com>