Chester is a chat-bot that can be added to your server. Players can chat to him and from what us, the developers, have found, the responses can be hilarious!


  • Logs all messages by players.
  • When Chester is mentioned, he replies with one of his saved messages.
  • Works in any language (except in the beginning, where he stores 3 English sentences)


  • Just chat like normal, and say 'Chester' when you want him to respond




  • Negate chester.trigger to stop Chester from logging them (eg. -chester.trigger)
  • Negate chester.log to stop people from being logged by chester

How does Chester work?

Chester logs every single message said by players and collects them in a database. Whenever a player mentions his name, he responds with the most appropriate reply, as selected from his database.

If your Chester doesn't seem to make sense at first, this is normal, Chester will learn from chat and it may take some time for him to gather enough information in his brain.

Chester's responses can be highly intelligible and amusing :D!



Developers: API documentation can be found here:

You must login to post a comment. Don't have an account? Register to get one!

  • Avatar of ThisUsernameIsMine ThisUsernameIsMine Feb 12, 2015 at 00:28 UTC - 0 likes

    @CoolComixs: Go

    For me it still works (using Chester 2.3.1 jenkins build #11 and latest compiled Spigot)

    Last edited Feb 12, 2015 by ThisUsernameIsMine

    My problem(s) with MyCommand and Ban Management

    Portable and Updatable Minecraft Launcher
    + +

    -:- Me on YouTube -:-

  • Avatar of CoolComixs CoolComixs Feb 11, 2015 at 00:28 UTC - 0 likes

    Will this work in a 1.8 server? Or is it too outdated?

  • Avatar of ThisUsernameIsMine ThisUsernameIsMine Feb 03, 2015 at 04:54 UTC - 0 likes

    @robotnikthingy: Go

    Chester's license is Public Domain which basically means anyone is allowed to do anything with it as there aren't any copyrights on it:

    I would like to test your incarnation of Chester (does it have any settings or commands?)

    Last edited Feb 03, 2015 by ThisUsernameIsMine
  • Avatar of robotnikthingy robotnikthingy Dec 08, 2014 at 20:47 UTC - 0 likes

    I ended up making my own fork of chester in my attempt to make the craziest chatbot I could

    The version I made loads comments from threads from 4chan (boards specified in config file) and updated the brain file every 12 hours. The results are both hilarious and horrifying. I would upload it, but I dont know if the authors would allow it

    Last edited Dec 09, 2014 by robotnikthingy


  • Avatar of Darunia18 Darunia18 Aug 18, 2014 at 23:31 UTC - 1 like

    I found something else about this plugin. Chester still logs player chat, as well as listens to trigger words, when certain players are muted or using some plugins that have private chat functions. It'd be nice if he would only read and respond to what goes through to the main chat.


  • Avatar of ThisUsernameIsMine ThisUsernameIsMine Aug 11, 2014 at 15:22 UTC - 0 likes

    The bot stops working after some time (trigger word: copy)

    [11-08-2014 17:07:44 INFO]: [S] <*ElectricGamer> ty for the info copy
    [11-08-2014 17:07:44 WARN]: Exception in thread "Chester"
    [11-08-2014 17:07:44 WARN]: java.lang.ArrayIndexOutOfBoundsException: 4
    [11-08-2014 17:07:44 WARN]:     at info.gomeow.chester.ChesterCommunicator.getSentence(
    [11-08-2014 17:07:44 WARN]:     at
    [11-08-2014 17:07:44 WARN]:     at Source)

    This occurs under Chester v2.3.1 #11 @ spigot-1.7.10-R0.1-SNAPSHOT #1603

    R.i.P. Chester

    Last edited Aug 11, 2014 by ThisUsernameIsMine
  • Avatar of ItzMePikachuman1 ItzMePikachuman1 Aug 08, 2014 at 22:59 UTC - 0 likes

    All he says is: May I have some coffee? and: Please slap me. ..............................................................................................


    < ____ - - - - - -------------

    Amateur Bukkit plugin coder

  • Avatar of ThisUsernameIsMine ThisUsernameIsMine Aug 03, 2014 at 01:00 UTC - 0 likes

    @Darunia18: Go

    Not lacking authors, only lacking development =P

  • Avatar of Darunia18 Darunia18 Jul 27, 2014 at 20:56 UTC - 0 likes

    I love this plugin, but I have a few things that I don't like about it. First, the responses are really quick. Second, it responds with the trigger word(s) in the phrases it says. And lastly, it's been crashing my server and leaving no kind of error log. Also, /chester reload would be really nice to have.

  • Avatar of wakyswag wakyswag Jul 08, 2014 at 20:51 UTC - 2 likes

    Are the authors just anyone who asks to be an author?


Date created
Mar 14, 2013
Last update
Aug 03, 2013
Development stage
Public Domain
Curse link
Recent files
  • R: v2.3.1 for 1.6.2 Aug 03, 2013
  • R: v2.3.0 for 1.6.2 Jul 30, 2013
  • R: v2.2.1 for CB 1.5.2-R1.0 Jun 15, 2013
  • R: v2.2.0 for CB 1.5.2-R0.1 Jun 09, 2013
  • R: v2.1.1 for CB 1.5.2-R0.1 May 13, 2013