Are there any free/open-source WCF client frameworks/libraries out there?

I am working on a tool that will test the server of a开发者_如何学Python Silverlight application. AFAIK, Silverlight uses WCF to communicate with the server. I am curious if here are any free tools out there that can enable to write test scripts that test the server via WCF, preferably in Java, Python, Ruby or anything that does not require .NET.

Take a look at WCFStorm, haven't used it yet myself but it seems ok. Of course, it's a tool not a library, and it uses .Net (as it's the most logical choice for a tool that interoperates with WCF).