There are two experimental channels:
General - for general Counterparty chat:
Technical - for developers:
Because one of the Skype channels has reached the maximum number of users, Gitter is recommended for new users.
Skype is our primary form of communication. We operate a general chat channel, and a developer-specific chat channel. Gitter and Skype channels are generally more active than IRC. To get added to either of the Skype channels, add “xnovaxcp” or “prezzy_dent” to your Skype and ask to be invited.
For IRC, join #xcp on Freenode (irc.freenode.net).
To connect, download and start up your IRC client (such as mirc on Windows or Xchat on Windows/Linux).