
PRAXIC AntiCheat
Server-side AntiCheat for Fabric. No client installation required.
Screenshots


About this Mod

Server-side anticheat for Fabric 1.21.1
No client mod required. One jar. Every check enabled by default.

⚡ 14 Detection Modules
| Movement | Combat | World | Client | ||||
|---|---|---|---|---|---|---|---|
| ⚡ | Fly | 🗡️ | Reach | 🧱 | Scaffold | 🖱️ | AutoClicker |
| 🔮 | Y-Prediction | 🌀 | KillAura | ⛏️ | FastBreak | 🧿 | AutoTotem |
| 🏃 | Speed | 💥 | Velocity | 🪂 | NoFall | 🎒 | Inventory |
| 🌊 | Jesus | ⏱️ | Timer |
Each check runs independently. Own sensitivity, own cooldown, own response action. Toggle on or off. One config file.

🔮 Smart Engine
🧠 Physics Prediction — Simulates vanilla gravity tick by tick. Compares predicted position to actual. Catches fly and hover that threshold checks miss.
🌐 Lag Compensation — Thresholds scale with each player's latency. No configuration needed.
🔄 Violation Decay — VL decreases over time without new flags. Clean players recover on their own.
↩️ Setback — Silent teleport to last safe position instead of disconnect.

⚙️ Actions
Every check carries its own configurable response:
| Action | Behavior | |
|---|---|---|
| ⚠️ | Warn | Alert the player, log the violation |
| 🚪 | Kick | Immediate disconnect |
| 🔨 | Ban | Permanent, automatic |
| ↩️ | Setback | Silent teleport to last safe position |
🔔 Integrations
📣 Staff Alerts — Every flag reaches OP2+ in real time.
💬 Discord Webhook — Rich embeds with full details. One line in config.
🔗 Event API — PraxicViolationEvent for custom mod integrations.
🔥 REVEX — Escalation Addon
Graduated punishment system built on top of PRAXIC.
Warn → 15 min → 1 hour → 1 day → permanent. Fully automatic.
💬 Commands
| Command | Description |
|---|---|
/praxic status |
Module overview |
/praxic stats |
Session flags, top checks, top players |
/praxic check <player> |
Player violations |
/praxic violations |
Server-wide overview |
/praxic reset <player> |
Clear a record |
/praxic reload |
Hot-reload config |
/praxic whitelist add|remove|list |
Bypass for trusted players |
/praxic history <player> |
Persistent log — works offline |
All commands require OP level 2.
🚀 Setup
- Install Fabric Loader + Fabric API for 1.21.1
- Drop the jar into
mods/ - Start the server — done.
Config generates at config/praxic.json. Apply changes with /praxic reload.

Open source · Apache 2.0 · Source Code · Report a bug
Active development — detection improves with every release.
Available Versions
How to Install PRAXIC AntiCheat 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 "PRAXIC AntiCheat". 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
PRAXIC AntiCheat 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 PRAXIC AntiCheat compatible with fabric?
PRAXIC AntiCheat officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with PRAXIC AntiCheat – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if PRAXIC AntiCheat 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.
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