# ️ ModChecker v1.0.0 — Initial Release
### ✨ Features
- **Client Brand Detection** — Detects Forge, Fabric, Vanilla, Lunar, LabyMod and more via `minecraft:brand` channel.
- **Mod ID Detection** — Discovers specific mods (Litematica, JourneyMap, WorldDownloader, Wurst) through channel registration packets.
- **Auto-Kick** — Instantly kicks players using banned clients or mods with fully customizable messages.
- **Premium/Crack Check** — Verifies account status through Mojang API (async, no lag).
- ️ **Live Monitoring GUI** — Use `/modchecker` or `/mc` to open an inventory menu showing all online players with their Client, Account Status, and Mods.
- **Staff Notifications** — Real-time chat alerts for staff with `modchecker.notify` permission.
- **Persistent Logging** — All detections saved to `detections.log` with timestamps.
- ️ **Bypass Permission** — Admins with `modchecker.bypass` can use banned mods without getting kicked.
- ⚡ **Fully Async** — Zero TPS impact, all heavy operations run off the main thread.
### Supported Versions
- Minecraft 1.21 / 1.21.1
- Spigot / Paper / Purpur
### ✨ Features
- **Client Brand Detection** — Detects Forge, Fabric, Vanilla, Lunar, LabyMod and more via `minecraft:brand` channel.
- **Mod ID Detection** — Discovers specific mods (Litematica, JourneyMap, WorldDownloader, Wurst) through channel registration packets.
- **Auto-Kick** — Instantly kicks players using banned clients or mods with fully customizable messages.
- **Premium/Crack Check** — Verifies account status through Mojang API (async, no lag).
- ️ **Live Monitoring GUI** — Use `/modchecker` or `/mc` to open an inventory menu showing all online players with their Client, Account Status, and Mods.
- **Staff Notifications** — Real-time chat alerts for staff with `modchecker.notify` permission.
- **Persistent Logging** — All detections saved to `detections.log` with timestamps.
- ️ **Bypass Permission** — Admins with `modchecker.bypass` can use banned mods without getting kicked.
- ⚡ **Fully Async** — Zero TPS impact, all heavy operations run off the main thread.
### Supported Versions
- Minecraft 1.21 / 1.21.1
- Spigot / Paper / Purpur
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.6, 1.21
- 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 Spigot — 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.
ModChecker + ClientChecker is a free Minecraft Java mod. Compatible with Minecraft 1.20, 1.20.6, 1.21, 26.1 and newer. Downloaded 49 times (via Spigot). Download it and open it directly in the game.