Detect and fight the exploitation of various flaws/bugs in Minecraft!

Main Features Permissions Commands Configuration Jenkins


NoCheatPlus attempts to prevent cheat clients from exploiting weaknesses of Minecraft or its protocol, making your server more safe. Checks cover a wide range of issues including flying and speeding, fighting hacks, fast block breaking and nukers, inventory hacks, chat spam and other types of malicious behaviour. For a more complete list have a look at the Features Page.

NoCheatPlus puts emphasis on configurability and allows you to customize actions that are carried out when a player fails a check (e.g. silent cancelling, executing commands, just logging). Bypass permissions allow to control what check to apply for which players, all checks can be deactivated in the configuration, also having the option for world-specific configuration files. Many checks allow more detailed configuration to adjust sensitivity.

Certainly NoCheatPlus is not a magical bullet, it uses a lot of heuristics and even guessing, so you will encounter false positives here and there and also not catch every single violation. Example video of how NoCheatPlus blocks cheats (outdated plugin version).

NoCheatPlus was introduced by NeatMonster, building on the code base of NoCheat by Evenprime.

The following plugins might be useful to have a look at.

CompatNoCheatPlus (cncp)

Make plugins like mcMMO, Citizens, MagicSpells or MachinaCraft more compatbile with NoCheatPlus. Not all existing plugins are covered (yet), but you can leave a note or ticket request for cncp.


Orebfuscator fights all sorts of X-ray-hacks by altering the map information that is sent to the players, such that they have to mine blocks to actually reveal what is behind. Virtually a "must have".

Downloads and History of Changes

  • Download officially approved versions on the Files page at BukkitDev.
  • Development builds have been moved over to the Jenkins at EcoCityCraft.
  • Do not download from any other source, do not use jars other people send you.
  • Changes by build number can be examined in the Jenkins changes list.
  • All commits can be seen in the GitHub commit history.
  • Plugin statistics are no longer reported to


Documentation Resources

Contact us

  • Quick questions can be asked on this page,
    or on IRC (Server: | Default-Port: 6667 | SSL-Port: 6697 | Channel: #nocheat | Web client: WebIRC)
  • For real issues or feature requests please create a new ticket or add to an existing ticket.
  • To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. Please do not contact the user 'NoCheatPlus', it is for administrative purposes only and will likely not be answered in time. Keep to BukkitDev and GitHub for support, do not trust users on other forums or websites, also not if their nick names are the same as NCP staff on BukkitDev.

Please always state the output of the "ncp version" command to let us know versions in use (users of cncp also the "cncp" command).

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  • Avatar of asofold asofold Apr 14, 2014 at 19:40 UTC - 0 likes

    @andrewkm: Go

    I am still following the conversation - build 677 contains a change that would let NCP fail earlier if it was causing this at all. It's not more "safe" to use than build 676 though, because it would fail during processing moves, if it happened at all (should not if there are no bugs).

    @chsedv: Go

    I might not be able to test 1.7.8 much for a while, though.

    @MasterMithrandir: Go

    What version of NCP ?


    Latest release (1.7.2-1.7.9, approved) NoCheatPlus 3.10.12-RC-sMD5NET-b700
    (Development builds (1.7.10): Jenkins)

  • Avatar of MasterMithrandir MasterMithrandir Apr 14, 2014 at 18:27 UTC - 0 likes

    My players are getting this message and being kicked: Block breaking out of sync!

    how can I solve this?

  • Avatar of chsedv chsedv Apr 13, 2014 at 09:12 UTC - 0 likes

    pls update to Bukkit 1.7.8.

    [10:57:22] [Server thread/INFO]: [NoCheatPlus] Enabling NoCheatPlus v3.10.10-SNAPSHOT-sMD5NET-b677 [10:57:23] [Server thread/WARN]: [NoCheatPlus] Check for updates and support at BukkitDev: [10:57:23] [Server thread/WARN]: [NoCheatPlus] Development builds (unsupported by the Bukkit Staff, at your own risk): [10:57:23] [Server thread/WARN]: [NoCheatPlus] Could not set up native access for the server-mod (git-Spigot-1406 (MC: 1.7.8)). Please check for updates and consider to request support. [10:57:23] [Server thread/WARN]: [NoCheatPlus] Bukkit-API-only access: Some features will likely not function properly, performance might suffer. [10:57:23] [Server thread/INFO]: [NoCheatPlus] McAccess set to: 1.4.6|1.4.7|1.5.x|1.6.1|1.6.2|? / Bukkit-API [10:57:23] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.5 blocks. [10:57:23] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.6.1 blocks. [10:57:23] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.7.2 blocks. [10:57:23] [Server thread/INFO]: [NoCheatPlus] Inventory checks: FastConsume is available, disabled InstantEat. [10:57:24] [Server thread/INFO]: [NoCheatPlus] Version 3.10.10-SNAPSHOT-sMD5NET-b677 is enabled. [10:57:24] [Server thread/INFO]: [NoCheatPlus] Added hook: Citizens2(cncp) [2.0]

  • Avatar of andrewkm andrewkm Apr 12, 2014 at 16:40 UTC - 0 likes

    Just randomly found this in console:

    Build 676 Spigot 1387

  • Avatar of asofold asofold Apr 09, 2014 at 08:48 UTC - 0 likes

    @mcminicorp: Go

    No idea, could just be client side/delay/lag/something - the Munchhausen check is disabled, isn't it?

    @ridddle: Go

    Thanks for the info!

  • Avatar of ridddle ridddle Apr 08, 2014 at 07:06 UTC - 0 likes

    @asofold, good news. I was able to find the InvTweaks/inventory bug and it is related to Spigot build number. In my current build, which is a 1.7.2 backport fixing the negative tick bug it doesn’t work reliably while on my new test server running build #1366 (1.7.5) it works flawlessly.

    Thanks for pointing me in the right direction!

    Last edited Apr 08, 2014 by ridddle
  • Avatar of mcminicorp mcminicorp Apr 07, 2014 at 21:10 UTC - 0 likes

    When someone tries to swing a fishing rod, it doesn't show the line of the rod coming out. Why not?

  • Avatar of KirjoZzZ KirjoZzZ Apr 06, 2014 at 13:43 UTC - 0 likes

    @asofold: Go

    kk. Thank you alot for your help.

    JoZzZ Team Gaming

  • Avatar of asofold asofold Apr 06, 2014 at 10:07 UTC - 0 likes

    @KirjoZzZ: Go

    Use the latest development build for 1.7.5, we might push a (beta) release today.

    Edit: we will probably make it release next day(s), some checks on potential fixes/bugs pending, want to have those in.

    Last edited Apr 06, 2014 by asofold
  • Avatar of KirjoZzZ KirjoZzZ Apr 06, 2014 at 08:44 UTC - 0 likes

    @MyPictures: Go Here you go:

    Version information Server git-Spigot-1370 (MC: 1.7.5) NoCheatPlus Plugin: 3.10.9-RC-sMD5NET-b673 MCAccess: 1.4.6|1.4.7|1.5.x|1.6.1|1.6.2|? / Bukkit-API

    Last edited Apr 06, 2014 by KirjoZzZ


Date created
Apr 02, 2012
Last update
May 18, 2014
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Recent files