NeoAuth Mod (1.21.1, 1.20.1) – Fix Login Errors In-Game
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
⬇ Download
NeoAuth Mod brings the features of the Auth Me mod to the NeoForge mod loader, letting you fix your game session without leaving Minecraft. It helps solve the common session validation error that can stop you from joining a server. Instead of restarting the game, you can simply re-validate your account from the main menu. This is a client-side mod, which means you can use it on any multiplayer server without needing the server owner to install anything.
Features:
- Fix your Minecraft session directly inside the game instead of restarting.
- Built to work specifically with the NeoForge mod loader.
- Works on any multiplayer server because it only needs to be installed on your client.
- Keeps almost all the features of the original Auth Me mod, but does not include offline authentication.
Screenshots:
NeoAuth Mod Download Links
For Minecraft 1.21.1, 1.21
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1, 1.20
Forge version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 177571.mcaddon
- Download size: 57 KB
- Download link checked 25 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.