McAuth

Authenticate yourself in Minecraft and re-validate your session.

333 Downloads

fabricforgeutility

About this Mod

McAuth is a Minecraft mod that brings account authentication into the game in the efforts of overcoming the infamous session validation error when connecting to a server.

McAuth is a fork of authme by axieum that is available for both fabric and forge

Available Versions

1.17.1-2.0.0release

MC 1.17.1forge

August 29, 2021

1.17.1-2.0.0release

MC 1.17.1fabric

August 29, 2021

How to Install McAuth on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.17.1).

Install Mod

Open the mod browser in the dashboard and search for "McAuth". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforge

Minecraft Versions

1.17.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

McAuth server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.17.1). You can switch loaders with one click in the panel.

Is McAuth compatible with fabric and forge?

McAuth officially supports fabric, forge for Minecraft 1.17.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with McAuth – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if McAuth consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.