While you should be able to get the list supported integrations with IBM Rational Team Concert in the System Requirements page for the particular version, did you also know there were great resources on integrating with Rational Team Concert with a number of other applications on the jazz.net site? Just check out this quick query to see how much content there really is: https://jazz.net/search_results.jsp?q=integrating+rtc#page=0&type=&q=integrating%2Brtc
But don't stop there, you can also use the jazz.net community for queries that both do and do not fall under IBM supported configurations for any Jazz based products. The Jazz.net community is supported by users of Jazz products, consultants, practitioners, Jazz developers, as well as our own technical support engineers, and is an open community for all to join and share their expertise!
Moreover, there are even great resources on how to get the most out of the Jazz.net forums! If you've not started participating yet, consider this your invitation to join in the conversations, ask questions, and even provide your own expertise to help others. You'll find value no matter how you participate!