http://owlzyj4to3l5daq6edgsgp5z4lh4tzlnms4z6jv6xdtkily77j4b3byd.onion/beginner-guides/pidgin.html
To login or create an account using Pidgin, follow these steps: If the Accounts screen is up, click Add. If not, go to Accounts > Manage Accounts , or press Ctrl+A. Under Protocol, choose XMPP. For Username, put your desired username. For Domain, put the XMPP server (e.g. cloak.dk). If you are creating a new account, check the box Create this new account on the server .