How do I install AuthenticationSystem?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does AuthenticationSystem work with?

The listing gives Minecraft 1.21.8. This is the version stated by the author or source site, not something we verified ourselves.

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AuthenticationSystem

by Impopite · on Modrinth

Secure authentication plugin for Minecraft servers that manages player login and registration with password protection, session handling, and account…

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Open in MC Java Mods Get it on Google Play →

AuthSystem

A secure and lightweight authentication plugin for Minecraft servers, built with Paper API.

Features

Registration & Login — Secure player authentication with BCrypt password hashing
Premium Authentication — Toggle online-mode login for Mojang verified players
MySQL Storage — Persistent data with HikariCP connection pooling
Brute-force Protection — Configurable kick or timed ban after too many failed attempts
Authentication Timeout — Automatic disconnection for players who don't authenticate in time
Multilingual — Built-in English and Italian language support, easily extensible
Admin Tools — Password reset, player unregister, IP lookup, and config reload
Developer API — Lightweight API for integration with other plugins via JitPack
Update Checker — Notifies admins of new releases on startup

Requirements

Java 21+
Paper 1.21+ (Spigot/Bukkit compatible)
MySQL 5.7+ or MariaDB 10.3+

Installation

Download the latest AuthSystem.jar from the releases page
Place the JAR in your server's plugins/ folder
Start or restart the server
Edit plugins/AuthSystem/config.yml with your database credentials
Reload or restart the server to apply changes

Documentation

Full documentation including commands, permissions, configuration, and API reference:

DOCUMENTATION

Bug Reports & Feature Requests

Found a bug or have a suggestion? Open an issue on GitHub Issues.

License

This project is licensed under the MIT License.

Developed by zImpoo

Telegram: @tentava
Discord: Impopite

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.8
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as AuthSystem.jar — drop this file into the mods folder
Download size: 1.1 MB
Download link checked 14 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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