Mod

Modpack Checker

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Modpack Checker

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A lightweight Fabric mod for Minecraft servers to verify that clients are using the correct modpack version.

Mod Loaders
Fabric
Minecraft
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Client Required
Server Required

About

Project Details

Type
Mod
License
Apache License 2.0
Latest Version
0.1.2+1.20.x
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About

Description

Modpack Checker

A lightweight Fabric mod to verify that players use the correct modpack version on your server.

Features

  • Simple version-based client-server check (no modlist comparison)
  • Automatic disconnect with helpful messages
  • Easy-to-edit TOML config files for both client and server
  • /reload support to apply changes without restarting
  • Dev mode: use version 0.0.0 to disable checks during development

How It Works

  1. Server sends a version check during login
  2. Client replies with the version from modpack-checker-client.toml
  3. Server compares it to its expected version
  4. If mismatched, the player is kicked with a custom message

Configuration

Server (config/modpack-checker-server.toml):

enable = true
expected_version = "1.0.0"
[messages]
no_mod = "Please install the Modpack: <your-modpack-link>"
wrong_version = "Please install modpack version {version}: <your-modpack-link+version>"
server_error = "Server configuration error. Please contact an administrator."

Client (config/modpack-checker-client.toml):

version = "1.0.0"

Screenshots

Gallery

  • Client version is diferent from the server (Default message)
    Client version is diferent from the server (Default message) Disconect message when joining the server with the client config version being diferent (Default message)
  • Client is missing the mod (Default message)
    Client is missing the mod (Default message) Disconect message when joining the server without the client having the mod/modpack (Default message)

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Modrinth
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