Bananawire is a very simple bot that logs into an IRC server to download big files at very fast speeds. It supports download resuming and rechecking the DCC connection every 60 seconds.
NGEN XDCC Packlist Parser is an XDCC packlist parser which integrates into Apache through mod_cgi and is easy to set up and configure.
An API to be used with jQuery.
An interactive symbolic-numeric system dedicated to celestial mechanics.