KeyMaster

KeyMaster is the license framework that every paid Master plugin depends on. It runs on your server, validates your account key against masterplugins.net, and unlocks every Master plugin you own with a single key.

What it does

• Validates your account key in one HTTP call and caches the result for hours
• Gates every paid Master plugin: if validation fails, dependent plugins refuse to run their commands
• Releases its server slot automatically when the server shuts down

What it does NOT do

• It does not charge you. KeyMaster itself is free, you can install it on as many servers as you want.
• It does not validate free Master plugins. Those run without a key.
• It does not call home with anything sensitive — only the account key, server UUID, plugin versions, and player count.

Requirements

• Paper / Spigot / Folia, Minecraft 1.21.x
• Java 21+
• Outbound HTTPS (port 443) to masterplugins.net

Install instructions are in [Installation](install). Configuration in [Configuration](config). Commands in [Commands](commands).