Medusa Anti-Xray
A lightweight, high-performance heuristic anti-xray solution for modern Minecraft servers.
Why Medusa Anti-Xray?
Unlike traditional engine-based Anti-Xray (like Paper's Engine-Mode 2) which can increase server resource usage, generate packet overhead, and affect client-side rendering, Medusa Anti-Xray uses a smart, server-side heuristic monitoring system. It silently tracks mining behaviors, differentiates exposed cave ores from hidden pocket ores, and detects suspicious patterns without impacting your server's performance.
⭐ Core Features
A lightweight, high-performance heuristic anti-xray solution for modern Minecraft servers.
Why Medusa Anti-Xray?
Unlike traditional engine-based Anti-Xray (like Paper's Engine-Mode 2) which can increase server resource usage, generate packet overhead, and affect client-side rendering, Medusa Anti-Xray uses a smart, server-side heuristic monitoring system. It silently tracks mining behaviors, differentiates exposed cave ores from hidden pocket ores, and detects suspicious patterns without impacting your server's performance.
⭐ Core Features
- Heuristic Detection Algorithm: Evaluates mining behavior dynamically using a sliding window rather than checking individual blocks.
- Exposed vs. Hidden Ore Weighting: Smart detection differentiates between naturally exposed cave ores (low suspicion) and fully enclosed stone-hidden ores (high suspicion).
- High Performance & Memory-Efficient: Keeps player history in a fast in-memory cache and automatically releases memory when players log out.
- Sliding Time-Window Analysis: Monitors activity over custom durations (e.g., last 30 minutes) to avoid false flags.
- Multi-World & Multi-Ore Customization: Separate configurations, tracked ores, and filler blocks for overworld and nether dimensions.
- Staff Alert Cooldowns: Automatically limits warning rate to prevent spamming staff chat.
Installation
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Download the MedusaAntiXray.jar file.
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Place the jar file inside your server's plugins directory.
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Restart your server to generate the configuration files.
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Customize the config.yml file to match your gameplay needs.
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Run /medusa reload to apply changes!
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.
MedusaAntiXray is a free Minecraft Java mod. Compatible with Minecraft 1.20, 1.20.6, 1.21. Downloaded 106 times (via Spigot). Download it and open it directly in the game.