Adding Sitefinity CMS to an existing MVC application

Hi, 

I am working on a POC to evaluate Sitefinity and from what I see so far its best to be the main application accommodating other mvc models but not the opposite, I would like to use  Sitefinity as part of my existing application, worst case is having the backend separate but I would have to read the page content under my existing solution, is there any libraries that support such thing ?