How do I install AuthManager?

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 AuthManager work with?

The listing gives Minecraft 1.21, 1.21.1, 1.21.2, among others. This is the version stated by the author or source site, not something we verified ourselves.

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AuthManager

by stiglio · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

AuthManager

Security-focused authentication plugin for Paper/Purpur servers.

AuthManager protects offline-mode auth workflows with strong pre-auth restrictions, premium identity verification, anti-bruteforce systems, and scalable database support.

Features

Secure /register and /login
Blocks actions/chat/commands before authentication
Premium verification modes: strict and compatibility
Rate limit for pre-login, login, and register
Account lock after repeated failures
Optional remembered sessions
IP intelligence checks (proxy/hosting/mobile/unknown)
Multi-database support: SQLite, MySQL, PostgreSQL
DB health + pool telemetry + migration tracking
Guided SQLite import to external databases
Detailed admin diagnostics and runtime metrics

Commands

/login <password>
/register <password> <confirmation>
/premium
/unpremium
/changepassword <old> <new> <confirmation>
/logout
/authstatus
/authadmin <subcommand>

Important Admin Subcommands

/authadmin status
/authadmin db <status|health|migrations|import>
/authadmin lookup <player|ip>
/authadmin ratelimit <status|clear>
/authadmin sessions
/authadmin unlock <player>

Permissions

authmanager.admin for /authadmin subcommands

Requirements

Java 21
Paper/Purpur 1.21+
PacketEvents installed

Version

Current release: BETA-1.4

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 1.21.1, 1.21.2
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 AuthManager-BETA-1.4.jar — drop this file into the mods folder
Download size: 212 KB
Download link checked 11 Sept 2026 — working

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

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All Mods for Java All Minecraft Java mods Java mods for 1.21