
Modrinth · Minecraft mod
Zeffut Mod Checker
Reports a player's installed mods to the server so admins can allow or ban mods and kick anyone using a banned one, with a handshake so the client only talks to a ModChecker server.
Quick answer
Which Zeffut Mod Checker release matches 26.1.2?
Zeffut Mod Checker 2.1.0+26.1.2-neoforge targets 26.1.2 with NeoForge. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is Zeffut Mod Checker required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Zeffut Mod Checker 2.1.0+26.1.2-neoforge need?
2.1.0+26.1.2-neoforge on 26.1.2. Every mod below is checked against that same setup.
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 Zeffut Mod Checker without breaking your instance.
Built for Zeffut Mod Checker 2.1.0+26.1.2-neoforge on 26.1.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.1.0+26.1.2-neoforge. It targets 26.1.2 with NeoForge; 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
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.1.0+26.1.2-neoforge. It opens that exact file at the source.
About this project
What does Zeffut Mod Checker add?
ModChecker
ModChecker reports each player's installed mods to the server. Admins can mark mods as
allowed or banned, and players carrying a banned mod are kicked.
How it works
A handshake keeps it clean: when you join, the server announces itself (modchecker:hello),
and only then does the client send its mod list (modchecker:modlist). A vanilla client
ignores the announcement, and the client never reveals its mod list to a server that doesn't
run ModChecker.
Features
- Client mod for Fabric and NeoForge
- Minecraft 1.21.11, 26.1, 26.1.1, 26.1.2
- Server side as a Paper/Purpur plugin and a Velocity proxy plugin (enforcement at the proxy)
/modsadmin GUI and commands: list, inspect a player, allow / ban / reset a mod- Configurable kick messages, optional "kick players without the mod", permission bypass
Server side
Install the matching server plugin to manage and enforce the mod list.
Project description from Modrinth.
Pick your setup
Zeffut Mod Checker by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Zeffut Mod Checker versions and loaders
2.1.0+26.1.2-neoforge
modchecker-neoforge-26.1.2-2.1.0+26.1.2.jar
14 Jun 2026
2.1.0+26.1.2-fabric
modchecker-fabric-26.1.2-2.1.0+26.1.2.jar
14 Jun 2026
2.0.1+26.1.2-neoforge
modchecker-neoforge-26.1.2-2.0.1+26.1.2.jar
2 Jun 2026
2.0.1+26.1.2-fabric
modchecker-fabric-26.1.2-2.0.1+26.1.2.jar
2 Jun 2026
Looking for an older file? The official Modrinth project page is in Resources.