Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.
Features include: authentication, channel control, a full-featured Memo system, a Seen system, logging capabilities, a help system, the ability to act as a file sharing node and the ability to share data and perform functions together with other bots.
A lightweight, high-performance Internet Relay Chat server
IRCD-Hybrid is a lightweight, high-performance Internet Relay Chat server.
X-Chat is an IRC (Internet Relay Chat) program for Linux and Windows.
Nested commands, easy configuration, and an incredibly flexible and easy-to-use plugin system distinguish Supybot from other IRC bots. There simply isn't a more flexible or easier to use IRC bot!
libircclient is a small but powerful library, which implements client-server IRC protocol. It has all features needed to create your own IRC client or bot, including multi-threading support, sync and async interfaces, CTCP/DCC support, colors, SSL connections and so on.
X-Chat Aqua is X-Chat with an Aqua interface for MacOS X. X-Chat Aqua uses the irc engine from X-Chat, and is designed to look and feel like the GTK+ front end.
A graphical notification plugin for the instant message client gaim. Now hosted at http://plugins.guifications.org/trac
Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.
miau is a small but fully featured IRC-bouncer/proxy. Features include so-called quicklogging, logging, auto-opping and dcc-bouncing. Most features can be enabled/disabled with configure-script.
Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®, ICQ®, MSN® Messenger, Jabber, limited IRC, Yahoo!®, and Apple Bonjour communications.
LostIRC is a simple, lightweight IRC client for X11 written in C++ to run on Linux/BSD, the goal of the first stable version is to be simple and as much keyboard controlled as possible.
A pidgin plugin that allows user to assign global hotkeys (e.g. Ctrl+Alt+g) for togglling buddy list and reading queued message. When "Toggle List" hotkey is enabled, it makes the buddy list hidden from your taskbar and task switcher (similar to ICQ).
J-Alice is a C++ implementation of an Alicebot clone. It can chat on console, irc and function as a mini-http server. Currently it runs on Linux, BeOS, Windows and Solaris with equal functionality.
Kopete is a flexible and extendable multiple protocol instant messaging system designed as a plugin-based system.
muh is a smart IRC-bouncing tool that remains on IRC all the time. You can take control over your nick by connecting to muh with an IRC client that is able to supply a password for the server connection.
UnrealIRCd is an IRC server based on the branch of IRCu called Dreamforge, formerly used by the DALnet IRC Network. Since development started on it (around May 1999) many new features has been added, modified, and many bugs fixed. Unreal runs both on *nix
Pandora is an artificial intelligent web based bot
Pandora is an artificial intelligent web based bot written in Java. Pandora is a component based AI architecture including, database memory, XML, voice, voice rec, chat, IRC, HTTP, Wiktionary, Freebase, consciousness, language, GUI, applet, web, jsp, Android
IRC Services with Live MySQL support (only running with a MySQL5.0 Server or higher), orion also supports modules and defcon (and many more features), it also includes a webinterface. Commands are based on Anope-syntax
The IRC's Talking Robot
[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
psyBNC is an easy-to-use, multi-user, permanent IRC-Bouncer with many features. Some of its features include symmetric ciphering of talk and connections (Blowfish and IDEA) It compiles on Linux, FreeBSD, SunOs and Solaris.
Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
PChat has moved to googlecode http://pchat-irc.googlecode.com
Rhapsody is a text console IRC client for Unix operating systems. It is small, fast, portable, easy to use and full featured. An intuitive menu-driven user interface makes rhapsody ideal for beginner to intermediate users.
Jarl is a Perl/Tk Client. It strives to provide full functionality with every aspect of the Jabber IM system. It currently supoprts messaging, chat, groupchat, ICQ, AIM, and IRC support.