This is a chat service part of the Bot::Backbone chatbot ecosystem. It provides a service for connecting to Internet Relay Chat (IRC) servers. This provides services for connecting to IRC channels and communication via private messages.
The preferred installation would be to fetch it from CPAN:
cpanm Bot::Backbone::Service::IRChat
or if you don't have App::cpanminus installed (you should), you can run:
perl -MCPAN -e 'install Bot::Backbone::Service::IRChat'