Client Auto Server Joiner
This mod is designed to send players instantly to connect to server as soon as they load the game and on the server-side reward them for using the mod.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21.1 on Fabric. On other versions it may install and then do nothing.
This mod allows you to reward players for joining your server for using a the mod which you can include in any modpack. It also automatically connects clients with the installed mod to a server instantly when they load up the game. When installed both server and client side it will recognize that the mod is installed and rewards the player.
Features of this mod:
Auto-adds and auto-connects to your server on game start
Sends the modpack name to the server for instant first-join rewards
Server runs configurable commands on first join (placeholders: {player}, {modpack})
Friendly reminders for players without the mod (with a clickable download link)
Clean logs and one-time reward tracking
Fabric 1.21.1, proxy-friendly (Velocity/TCPShield compatible)
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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.
- Ships as clientserverjoiner-1.1.jar — drop this file into the mods folder
- Download size: 16 KB
- Download link checked 12 Sept 2026 — working
These come from our own check of the pack file, not from the source page.