The web services client for Mathematica allows users to call operations that are based remotely on other platforms or languages that are not immediately accessible to Mathematica. This opens up a whole new realm of functionality and data to users of Mathematica, such as applications enhanced by technologies like XML and HTTP.
InstallService — install the web service operations defined by a supplied WSDL
ToServiceRequest — build a request message
InvokeServiceOperation — invoke a web service operation
FromServiceResponse — convert a response message to an expression
InstallServiceOperation — create a Mathematica function for a service operation
$InstalledServices — list of installed web services