How do I install McAuth?

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 McAuth work with?

The listing gives Minecraft 1.17.1. This is the version stated by the author or source site, not something we verified ourselves.

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McAuth

Java mod listed for Minecraft 1.17. Downloads from the MC Java Mods app on Android.

by masterzach32 · on Modrinth

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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

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.17.1
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: 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.

File checked by MCModsHub

Ships as mcauth-forge-1.17.1-2.0.0.jar — drop this file into the mods folder
Download size: 43 KB
Download link checked 17 Oct 2026 — working

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

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