Anti Join Bot

Bukkit Firewall / Proxy Blocker

This plugin protects your server from bots that use proxies!

The players IP will be automatically verified when they join.

The plugin has been written to have an High level of performance.


  • Works with probably every Minecraft version
  • UUID Support aswell as Nickname support (for Offline mode Servers)
  • Whitelistless (Doesn't require to activate a Whitelist to block the bots)
  • Configurable delayed start (to reduce plugin load on server start/restart)
  • MySQL/SQLite support
  • Downloadable Blacklist on server start
  • Customizable Blacklists ("URL:Response" format) (Paste the URL with , instead of .)
  • Customizable Kick Messages
  • Quickly Disable/Enable the plugin via command
  • Reload the config in game
  • Permission to bypass checks
  • User Whitelist/Blacklist
  • Force check mode (Kick everyone for the first check, player is asked to rejoin)
  • Permission support
  • Proxy check from Server List and change MoTD if a proxy is found (Beta)
  • Debug mode available
  • Plugin Metrics



1. Put the "AntiJoinBot.jar" in the plugin folder and run the server.

2. It will create a folder called "AntiJoinBot" containing the "config.yml" (Default Config) and the "offline_data.db".

3. Ready ;D

Permissions and Commands:

Bypass checks:

Permission: "ajb.bypass"

Add/block players in whitelist:

Permission: "ajb.add"

  • "/ajb add <player>" -> (add player to whitelist)
  • "/ajb block <player>" -> (add player to blacklist)

Toggle AntiJoinBot:

Permission: "ajb.toggle"

  • "/ajb toggle"

Reload Configuration and Database Connection:

Permission: "ajb.reload"

  • "/ajb reload"

If you can not connect, please wait 24 hours and try it again or restart your router.

If this plugin helped you, please Donate ;D

Default Blacklist API's:

Source: (Before 5.0) (After 5.0)


Minecraft Serverlist (DE)

Minecraft Serverlist (EN)

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  • Avatar of LordDWT LordDWT Dec 18, 2014 at 20:10 UTC - 0 likes

    Any plan to update this to 1.8?

  • Avatar of NewBestACS NewBestACS Dec 12, 2014 at 20:05 UTC - 0 likes

    running very slowly some hours, causing a massive lag and all players getting kicked. If debug is off, nothing will appear in the console, the players will just get kicked like every 5 mins.

  • Avatar of Past1rma Past1rma Sep 13, 2014 at 00:39 UTC - 0 likes

    1.7.10 ?

  • Avatar of MasterMithrandir MasterMithrandir Aug 19, 2014 at 19:30 UTC - 0 likes

    @CookieDEV: Go

    Was this an answet to my issue maybe?

    Servidor Español:

  • Avatar of CookieDEV CookieDEV Aug 17, 2014 at 01:40 UTC - 0 likes

    ====== As service begins?/ajb enable ? ======

  • Avatar of MasterMithrandir MasterMithrandir Aug 16, 2014 at 14:03 UTC - 0 likes

    all /ajb commands aren't working for me in latest version. Using spigot for 1.7.10.

    I really need to whitelist some players :S Please fix or tell me how to whitelist >_<

    PD: No console output when executinc commands. Even console does not recognise the whitelist commands and asks me to use /help.

    Last edited Aug 17, 2014 by MasterMithrandir
  • Avatar of kokonut19 kokonut19 May 28, 2014 at 16:44 UTC - 0 likes

    Highly useful, highly effective plugin. thanks.

    I will become great. One of these days?

  • Avatar of 200dvd 200dvd May 13, 2014 at 20:44 UTC - 0 likes

    @brunoR1000: Go

    console output?

  • Avatar of brunoR1000 brunoR1000 May 04, 2014 at 01:50 UTC - 0 likes

    I put on my server and it crashes, does not open, how to solve?

  • Avatar of 200dvd 200dvd May 02, 2014 at 11:00 UTC - 0 likes

    @Marium0505: Go

    yes, but you have the chose to select a MySQL lite format stored in a file

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Date created
Oct 20, 2012
Last update
Feb 28, 2015
Development stage
  • enUS
GNU General Public License version 3 (GPLv3)
Curse link
Recent files