Yes. PermissionsEx is free to download from SpigotMC.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

PermissionsEx — Minecraft Admin

About PermissionsEx

From SpigotMC

A powerful permissions plugin for Minecraft

Familiar to many plugin for permissions with possible corrections of some shortcomings.

The main PEX issue on 1.19 is a server crash due to a thread blocking in the recalculatePermissions method of the PermissiblePEX class. I tried to fix this problem by using ConcurrentLinkedHashMap instead of blocking threads.
Also:

Removed automatic update.
Removed support for NetEvents, LilyPad, Spout and Glowstone

The plugin has been tested on a production server on versions 1.19.3-4. Load with quiet time at the level of an average plugin, no more than 0.05ms per tick, during a bot attack (10 bps) I noticed 0.3ms per tick.
The config has been updated. Delete the old one and set it up again.

Version based on source code
- https://github.com/PEXPlugins/PermissionsEx/releases/tag/STABLE-1.23.4

Highlights

From source data

Game versions

Built for Minecraft 1.19.

Loaders

Runs on Spigot and Paper.

Footprint

Rated a light load on a server.

PermissionsEx on Nxeon

From our catalogue

One-click install: Supported on Nxeon Minecraft servers, for Paper servers. We download it from SpigotMC, place it, and restart the server.
Server side: Required on the server
Server type needed: Spigot, Paper
Server load: light
Smallest plan we suggest: Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build: 1.23.4-3, released 2023-04-15

Game versions by loader

Loader	Game versions	Newest
Paper	1.19	1.19
Spigot	1.19	1.19

From 2 recorded builds of PermissionsEx.

Recent builds

Build	Released	Game versions	Loaders
1.23.4-3	2023-04-15	1.19	Spigot, Paper
1.23.4-2	2023-03-02	n/a	Spigot, Paper

Run PermissionsEx on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog

Listed on SpigotMC as “Admin”

Admin & protection

Permissions, moderation, anti-cheat and land protection for the people running the server.

Runs on your server

From source side support

SpigotMC lists PermissionsEx as required on the server. Check its SpigotMC page to see whether players need it too.

Compatibility

Game: Minecraft
Loaders: SpigotPaper
Runs on: Serverrequired on the server
Game versions: 1.19
Requires: One-click install needs a Paper server.

Verified at the source

✓SpigotMCOfficial listing, checked 2026-10-01Open ↗
✓AuthorSitmobedaf, as published on SpigotMC
✓LicenseNot published by the sourceFree

PermissionsEx