Psi+ is a cross-platform powerful Jabber client (Qt, C++) designed for the Jabber power users.
Brings all XMPP wonders to Drupal, interacting with user via javascript and plain old HTTP. Strophe javascript library is used for handling all javascript gears
iJab is an Ajax-based web based instant messaging program for XMPP/Jabber. It is free software
tweet.IM is a free service offered by ProcessOne. It enables you to use micro-blogging platforms like Twitter from your existing instant messaging application. The service makes it easier for you to send messages (called tweets), as well as follow the tweets of other users.
A simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom. Parties (servers) speaking the PubSubHubbub protocol can get near-instant notifications (via webhook callbacks) when a topic (Atom URL) they're interested in is updated.
"XBookmarks" for "XMPP Bookmarks". It is the Firefox implementation of XEP-0048: http://xmpp.org/extensions/xep-0048.html. You simply need a Jabber account and you can use it. Currently it is very basic, though functionnal, as the XEP is.
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The past few days I invested in developing a base framework for implementing service bots atop of micro-blogging services such as Twitter and Identica. The framework is written in Ruby and builds upon John Nunemaker’s Twitter gem.
Talkonaut™ is free mobile calling, VoIP enabled, Google Talk™ like application for your mobile phone.Talkonaut™ supports Jabber
This specification defines an XMPP protocol extension that enables entities to include RFC822-style address headers within XMPP stanzas in order to specify multiple recipients or sub-addresses.
A great amount of Pidgin's functionality is exposed through D-Bus, so you can do a lot with a script that uses D-Bus to communicate with a running Pidgin. D-Bus has bindings for many languages; this means you can write such a script in many languages including Python, Perl, C++, Java, Ruby, and Haskell.
xmpppy is a Python library that is targeted to provide easy scripting with Jabber
Prosody is an exciting new server for Jabber/XMPP written in Lua. It aims to be easy to use, and light on resources. For developers it aims to give a flexible system on which to rapidly develop added functionality, or prototype new protocols.
Nounours is a Javascript Web client to Jabber protocol. It's using BOSH implementation to communicate with a jabber server.
TrophyIM is a Jabber (XMPP) client built on top of strophe
An ajax web jabber client
The xmppclient module provides an xmpp thin client for drupal.
