- Loaders
- Fabric
- Downloads on Modrinth
- 4.9K
- Followers on Modrinth
- 9
- versions
- 38
- Updated
- September 24, 2026Sep 24
- Published
- in 2025
At a glance
Install on the server only; players don't need it
Authenticate

A Minecraft Fabric mod that provides player authentication functionality for servers.
Description
Authenticate is a server-side authentication mod for Minecraft that allows players to register accounts with passwords and login to access the server. This mod helps protect your server from unauthorized access and provides basic account management features.
Features
- Player Registration: Players can register accounts with passwords
- Player Login: Secure login system with password verification
- Player Logout: Players can logout from their accounts
- Ban System: Server administrators can ban players
- Database Storage: Uses H2 database for persistent data storage
- Cross-version Support: Supports multiple Minecraft versions
Requirements
- Fabric Language Kotlin: Required for Kotlin support
- Fabric ORM Jimmer: Required for database operations
Optional Dependencies
- Fabric Database H2: For H2 database support
Usage
Commands
- `/register ` - Register a new account
- `/login ` - Login to your account
/logout- Logout from your account- `/auth ban ` - Ban a player (admin only)
Registration Process
- When a new player joins the server, they will be prompted to register
- Use `/register ` to create an account
- Make sure both passwords match
- After successful registration, you can login with `/login `
Login Process
- Use `/login ` to access your account
- You must be logged in to interact with the server
- Use
/logoutwhen you're done playing
Configuration
Please visit https://github.com/Enaium/fabric-mod-Authenticate, as the description cannot include any SQL statements.
FAQ
How to install Authenticate?
Install Fabric for your Minecraft version, download Authenticate for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Authenticate support?
Authenticate has builds for Minecraft 1.20.6, 1.21.8, 1.21.10–26.1, 26.2–26.3 ….
Is Authenticate needed on the server?
Server only — players don't need to install it