clientjoinserver
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.
About this Mod
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)
Available Versions
How to Install clientjoinserver 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "clientjoinserver". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
clientjoinserver 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 (1.21.1). You can switch loaders with one click in the panel.
Is clientjoinserver compatible with fabric?
clientjoinserver officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with clientjoinserver – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if clientjoinserver 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.
Rent Modded Server
Install clientjoinserver with just one click on your server.