I want to access all the methods exposed in the service through the URL. if suppose the URL will be :
http://localhost/MyService/MyService.svc
You can also make use of the WebClient class to call the WCF service without needing a service proxy. Effectively you can send and receive Strings and Binary data and also simulate POSTs.
I use it extensively for reusable components where the developer may not ever create the required proxy methods. A good comparison of ways to do POST is available here.