Mod Observer Plugin
I don't know my version or loader
DISCLAIMER: This project is experimental
Monitor mods on Paper servers
ModObserver lets you monitor and manage the mods used by the player on your server. You can create a whitelist, blacklist and required mods list to do that. You can also use the command /modobserver getMods {playername} to view the specific mods used by that player.
The ModObserver mod is required to be installed by the players.
Features
- Whitelist
- Blacklist
- Required mods list
- Ignored players list
- SHA-256 file integrity verification
- Nested mods checking
- Incompatible mods GUI
- Server config generator
Check out our wiki!
Just to clarify, this plugin does NOT guarantee, players won't use disallowed mods. This plugin is just another layer of protection you can add to your server.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1, 1.20.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as ModObserverPlugin-2.1.1+mc1.20.x+.jar — drop this file into the mods folder
- Download size: 48 KB
- Download link checked 19 Sept 2026 — working
These come from our own check of the pack file, not from the source page.