XEP-0363 CLI upload tool. Written in Python, uses SleekXMPP. Give it login credentials to an XMPP server and a filename, and it'll upload the file to the server.
A service that logs into XMPP servers and tests their compliance with various XEPs. Generates a visual map of compliance on a categorical grid. You have to give it a user account on the server so it can log in and run tests. You do /not/ have to add your server to the public roster!
There is also a command line tool in Github.
The github repo of work pertaining to IoT communications and protocols over XMPP instead of other methods or networks. One advantage is that, by using p2p XMPP, devices could communicate with each other.
A web based XMPP client written in javascript. OTR enabled. Embed in a web page and you're good to go. Can associate with any server you tell it to when you try to log in, so it's not server-specific. Supports all of the important XEP specs.
A Python module that implements XMPP (the Jabber protocol) on the client side from scratch. Aims to having a low number of dependencies, implement all currently active XEPs, and have sane defaults for everything else. Tries to 'just work' as much as possible. Works with Python >= v2.6 and >= v3.1.