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CurseForge · Minecraft mod
OP Lib
Easier commands for players
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which OP Lib release should I use?
Latest stable file OP lib
Game version 1.21.1
Loader Fabric
OP lib targets 1.21.1 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is OP Lib required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does OP lib need?
OP lib. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add OP Lib without breaking your instance.
Built for OP lib. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use OP lib. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside OP lib. It opens that exact file at the source.
About this project
What does OP Lib add?
NOTE: OP Lib only works if it's installed on the server as well as your client. OP Lib only works on servers that allow you to access the console such as BisectHosting & Apex Hosting. OP Lib, allows non operator players to use any op command. OP Lib also makes it so the console does not see the cammands you execute. In order to activate this you have to type in /message (player name) L_Sean (and whatever command you are wanting to execute) NOTE: you don't put a slash (/) after L_Sean.
Project description from CurseForge.
Pick your setup
OP Lib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
OP Lib versions and loaders
OP lib
commandpassword-1.0.0.jar
16 Oct 2025
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup Fabric1.21.1 release
Looking for an older file? The official CurseForge project page is in Resources.
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