Yes. Anything you can run on another HTML page or on your blog should work just fine. At a base level, Business Catalyst is like any other web hosting platform.
I had questions about integrating Muse with Business Catalyst. I had spent hours researching, learning, and dealing with certain issues with my forms. I got a 30 second answer that would have saved me those hours spent and will save me hours in the future. Great support and very knowledgeable!Brad B.