GK AntiCheat vs Medusa

GK AntiCheat is a Minecraft server plugin that checks players to deter hacked clients from entering a server. Its listed verification flow asks a player to send a random code using a .say command supplied through tellraw. Administration commands cover help, configuration reloads, whitelist changes, and player-record checks. Detection targets include hacked clients and spamming bots, with kicking, automatic bans, and whitelist exclusion listed as enforcement actions; automatic bot kicking is still being tested. The plugin is listed for Spigot and tested on Minecraft versions 1.8 through 1.16, though its native major version is Legacy, below 1.13. Configuration languages include German and Chinese, and compatibility is listed with SkillAPI, other skill plugins, and other anti-cheat plugins. The author says it is mainly for Kit PvP or SkillAPI servers and recommends pairing it with another anti-cheat for survival servers. It has a free plan and paid access from $4.99 one-time. The author also warns that some hacked clients can bypass it and that update time is limited.

Medusa has no write-up on Specifiction yet; its figures are above.