Defero is a Telnet client coded solely for connection to Eggdrop bots as an automated alternative to DCC chat and CTCP chat. The software has been developed for Windows though has proven fully functional in the latest versions of both Wine and Crossover under Linux.

Major features include multiple (max 5) simultaneous connections, stored connection strings plus direct access to Eggdrop, Shell, and Tcl commands from the client user interface.