ModsFinder

Auth

by lullaby

Auth adds a login and registration system for servers, where players must sign in before they can play.

FabricForgeNeoForgeQuiltServer required, client optionalGNU Affero General Public License v3.0 or laterOpen source1.19 – 26.3

What it does

Auth protects a server by requiring each player to register an account and log in. Players can change their password, and only after logging in do they get access to the world. Server owners manage settings through a settings menu and commands, and a command grants an authentication bypass to a chosen player.

The server must run the mod, while players may add it to the client but do not need it. Files are published for Fabric, Forge, NeoForge and Quilt, with 23 release versions 1.19 – 26.3, and the latest file is v1.6.2+mod for 26.3. The mod is released under the GNU Affero General Public License v3.0 or later and is open source.

Key features

  1. Login and registration

    Players create an account on first join and sign in on later visits before they can take part in the game.

  2. Password change

    Logged-in players can change their password, which keeps their account under their own control.

  3. Administrator commands

    A settings menu and commands let server owners adjust the system and grant an authentication bypass to a player.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.3v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
26.2v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
26.1.2v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
26.1.1v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
26.1v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.x12 of 12 versions with builds
1.21.11v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.10v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.9v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.8v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.7v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.6v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.5v1.6.2+modv1.6.2+modv1.6.2+modv1.6.2+mod
1.21.4v1.5.1+modv1.5.1+modv1.5.1+modv1.5.1+mod
1.21.3v1.5.1+modv1.5.1+modv1.5.1+modv1.5.1+mod
1.21.2v1.5.1+modv1.5.1+modv1.5.1+modv1.5.1+mod
1.21.1v1.5.1+modv1.5.1+modv1.5.1+modv1.5.1+mod
1.21v1.5.0+modv1.5.0+modv1.5.0+modv1.5.0+mod
1.20.x2 of 2 versions with builds
1.19.x4 of 4 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Does Auth need to be installed on the client?

No. The server must run it, while the client part is optional.

Which loaders does Auth support?

Auth is published for Fabric, Forge, NeoForge and Quilt, and also as a data pack.

In the catalog

Auth is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 8,071 mods support Minecraft 26.3.

Social mods5,392Fabric modsMods for 26.38,071

More from lullaby

All projects
Clumps1.21 – 26.3Lucky Blocks1.21 – 26.3Graves1.21 – 26.3Chunky Offline1.21 – 26.3Villager Guards1.21 – 26.3Veinminer Enchantment1.21 – 26.3

Similar mods

Simple Voice Chat1.8.8 – 26.3No Chat Reports1.19 – 26.3Chat Heads1.16 – 26.3Essential Mod1.8.9 – 26.3More Chat History1.16.5 – 26.3e4mc1.17 – 26.3

What the author says

In vanilla we cannot use /kick, so I use many particles to kick (game crash) a malicious player, but you can disable it by disabling kick in /function auth:settings. Creating your own server can be a very lengthy, tedious and costly process.
lullaby, on the Modrinth page

Official listing

Owner
lullaby
Published
2023-02-02
Updated on Modrinth
2025-12-10
Facts verified
2026-10-15

Tags

ManagementSocialUtilityGame mechanics
Open on ModrinthCompare