
ClientCatcher-Fabric
Detect the client with which a player has connected to your server.
Screenshots

About this Mod
ClientCatcher-Fabric

A Server-side Fabric Mod to get the client with which a player has connected to your server.
Info
Looking for the Velocity ClientCatcher Plugin?
This Mod aims to have the same/similar Functionality as the Velocity Plugin. See Roadmap & Features.
Demo Vodeo: https://youtu.be/AOY4bHyH0Ok
The initial code is based on the work of C10udbursts 1.18.2 Fabric clientbrand mod.
This mod is not fully effective, because modded clients can hide/change their client branding when entering the server or impersonate vanilla (or other) client brands.
The Mod can detect several clients such as Forge, Fabric, LiteLoader¹, Lunar¹, Vanilla, and others.
¹Not tested!
Installation
- Install the latest version of the Fabric API for the correct Version.
- Download ClientCatcher-Fabric from Modrinth.
- Drag and drop on your servers mods folder.
- Start the server.
Commands
Client /clientcatcher client <player>
Permission: clientcatcher.command.client or if not set /op permissions
Shows you a player's client.
Roadmap & Features
| Velocity | Fabric | |
|---|---|---|
| Detect Client/Brand | ✔️ | ✔️ |
| Proper Permission | ✔️ | ✔️ |
| Detect Mods | Forge 1.7.10 - 1.12.2 | ⛔ Not Planned |
| Placeholder Support | ✔️ | 🟡 Planned |
| Config | 🟡 When needed |
Copyright & Licencing
Idea and Concept based on: ClientCatcher (Velocity Plugin)
Logo and Banner from: ClientCatcher (Velocity Plugin)
Changes:
- Added Fabric logo to Icon.
- Cropped Banner (only the one in the Gallery)
Initial Codebased on: C10udburst's clientbrand (1.18.2 Mod)
Changes:
- Overhaul and Update to 1.20.1
- Improvments
Available Versions
How to Install ClientCatcher-Fabric 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 (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "ClientCatcher-Fabric". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
ClientCatcher-Fabric 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 (1.20.1). You can switch loaders with one click in the panel.
Is ClientCatcher-Fabric compatible with fabric?
ClientCatcher-Fabric officially supports fabric for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with ClientCatcher-Fabric – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ClientCatcher-Fabric 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.
Similar Mods
Rent Modded Server
Install ClientCatcher-Fabric with just one click on your server.