Wocky is the XMPP library used by telepathy-gabble (the regular XMPP backend) and telepathy-salut (the iChat-compatible link-local XMPP backend as specified in XEP-0174). It uses GObject, GIO, libxml2, plus your choice of GnuTLS or OpenSSL.
git clone git://anongit.freedesktop.org/wocky
|Latest unstable version||UNRELEASED||API Documentation|
At present, Wocky does not receive its own independent releases. It is included as a Git submodule in the Gabble and Salut repositories, and is distributed as part of their releases.