How do I install authserverVerify?

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 CurseForge — not every file is mirrored on our own servers.

What Minecraft version does authserverVerify work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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authserverVerify

Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by elhumildejulian · on CurseForge

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Fabric. On other versions it may install and then do nothing.

Open in MC Java Mods Get it on Google Play →

SessionGuard Client

Client-side companion for the SessionGuard server security protocol.

What does this mod do?

SessionGuard Client is a lightweight companion required to play on servers running the SessionGuard security protocol.

When you join a protected server, it sends you a cryptographic challenge. This mod responds by forwarding your official Minecraft access token back to the server — nothing more. The server then contacts Mojang's session API directly to verify you are the legitimate owner of your account.

Your credentials never leave the Minecraft session system. This mod does not make any HTTP requests, does not store any data, and does not modify gameplay in any way.

Why is this needed?

Servers running in offline mode cannot natively verify whether a player actually owns the Minecraft account they claim. SessionGuard solves this by implementing Mojang's official session verification protocol server-side. This mod is the client piece that makes the handshake possible.

Features

Zero Mojang API calls client-side
No data stored locally
No gameplay changes
No GUI, no commands, no configuration

Requirements

Minecraft 1.20.1 — Fabric
Fabric API
Official Minecraft launcher (required for session verification to succeed)

Developed for the CRETANIA private server network.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 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: Opens on CurseForge — 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 authhybrid-1.6.0+1.20.1-client.jar — drop this file into the mods folder
Download size: 4 KB
Download link checked 24 Oct 2026 — working

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

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