Plugin KeyDupe

KeyDupe, crate key protection for Minecraft servers

KeyDupe is a Java Edition server plugin designed to detect duplicated crate keys and reduce abuse that can damage a server economy. It creates identifiable keys by adding a unique UUID and records each identifier, allowing the plugin to verify a key when a player clicks a crate.

The plugin supports customizable materials, alerts administrators when suspicious duplication is detected, and can trigger configurable punishments. It is intended for Bukkit, Paper, Purpur, and Spigot servers, with listings covering Minecraft 1.13 through 1.20.2. Compatibility depends on how the crate plugin validates keys, and the project warns that its beta status may cause false reports. Our BoxToPlay team considers it a useful safeguard for crate based economies.