Eunomia: download the Minecraft plugin (1.20

A library mod that handles networking (including packages, serialization and comms) as well as providing means to build native-looking user interfaces more…

Eunomia is a plugin for Paper / Spigot servers, made by zannagh. It supports Minecraft 1.20 – 26.x. It has been downloaded 142,716 times on Modrinth. That puts it at #26 of the 57 library and API plugins listed here. The last update came out on Oct 28, 2026.

How to install Eunomia

Make sure your server runs Paper and Spigot on Minecraft 1.20 – 26.x.
Download the .jar file from Modrinth and put it in the plugins folder of your server.
Restart the server. Avoid /reload, many plugins do not handle it well.
Type /plugins in the console: Eunomia should be listed in green. Its config files are created in the plugins folder on the first start.

Compatibility

Minecraft versions: 26.x, 1.21, 1.20
Runs on: Paper, Spigot
Edition: Java
Needs: Nothing else
License: MIT
Price: Free
Upkeep: Actively updated (Oct 30, 2026)

Eunomia compared with similar ones Compare all alternatives

Resource	Downloads	Rating	Versions	Last update	Price
Eunomiathe one you looked at	143K	–	1.20 – 26.x	2 days ago	Free
PacketEvents APIretrooper	135K	4.0	1.8 – 1.21	Sep 23, 2026	Free
Common Networkmysticdrew	4.6M	–	1.16 – 26.x	Sep 19, 2026	Free
Modern NetworkingBluSpring	182K	–	1.16 – 26.x	Aug 22, 2026	Free