Drop in the plugin, paste your key - and GuardAC protects your server.
GuardAC requires the PacketEvents plugin. Download it and drop the .jar into plugins/.
Download PacketEvents ↗Start once so plugins/GuardAC/ with its config is created.
Open plugins/GuardAC/config.yml, put your key in ai.api-key, save and run /guard reload.
/guard monitor - watch checks live in combat. /guard stats - overview. /guard menu - suspects menu.