AntiMod
by blooperMC
AntiMod is a Fabric client mod that lets a player's game check which mods are running and block unapproved ones on servers that use it.
What it does
Blocks such as hack clients can be stopped from joining, because the server requires AntiMod Plugin to be installed and it enforces the list of approved mods. A player has to launch with the approved set already installed, so gameplay stays consistent across a server.
AntiMod is client-side only, so only the client needs it. Servers that want to work with it install the AntiModPlugin plugin on the server. The mod depends on AntiModPlugin, Fabric API, InvHUD_Configurable and Sodium, and it is published for Fabric with files for 1.21 only. It is released under All rights reserved and is not open source.
Key features
Unapproved mod blocking
The mod blocks unauthorized or unapproved mods from running in the game.
Required mod checks
Players need the required mods installed before launch, and the mod verifies this.
ModChecker verification
With ModChecker, the server confirms that every player uses the correct mods, which helps with stability, security and fairness.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Use cases
Fair server play
Operators can require approved mods and block hacked clients, keeping the play field even for everyone who joins.
Who it’s for: Operators of multiplayer servers who need a fixed set of approved mods, and players on those servers who must launch with that set installed.
How it compares
SentinelClient is a Fabric mod for 1.21.8 – 1.21.9 that is server-required with optional client use, released under the MIT License and not open source. ModChecking is a Fabric mod for 1.21 – 1.21.11 under All rights reserved, so the license is the same as AntiMod but the version range is wider.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AntiMod | Fabric | 1.21 | Client-side only | 2025-08-30 |
| SentinelClient | Fabric | 1.21.8 – 1.21.9 | Server required, client optional | 2026-01-16 |
| ModChecking | Fabric | 1.21 – 1.21.11 | Not published | 2026-06-10 |
Questions
Does AntiMod need Fabric API?
Does a server need anything installed for AntiMod to work?
Which Minecraft versions does AntiMod support?
In the catalog
AntiMod is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 15,770 mods support Minecraft 1.21.
Similar mods
What the author says
ModChecker is a utility mod that ensures only approved mods can run on your Minecraft client. It is designed for servers or modpacks that want to enforce a strict list of allowed mods. ✨ Features: - Blocks unauthorized or unapproved mods from running. - Ensures players have all required mods installed before…
Official listing
- Modrinth page
- modrinth.com/mod/antimod
- Owner
- blooperMC
- Published
- 2025-08-30
- Updated on Modrinth
- 2025-08-30
- Facts verified
- 2026-10-15