redmine_rt от mayamatakeshi

This addon connects to redmine_rt plugin (http://www.redmine.org/plugins/redmine_rt) so you must have it installed on your redmine server.
You will also need an application server that does API calls to redmine to exchange messages with the addon.

Sample usage:
https://www.youtube.com/watch?v=XiHFAhs5o5M&feature=youtu.be

Configuration:
When you access the addon for the first time, it will ask for the URL of your redmine server. After this information is filled the addon will ask for login credentials for that server.