Further information on setting up the notification in Codebase can be found here.
Retrieving the Campfire Token
Retrieving the API token is very easy in Campfire, just navigate to your "My Info" page at the top right of the page, and you will find the token under API authentication token on that page:
You can copy the token into the API Key field within Codebase, as well as the subdomain of your account (e.g. https://codebasehq.campfirenow.com), and the room ID of the room you wish to push to.