For a deeper look into our DataScope Select SOAP API, look into:
Overview | Quickstart | Documentation | Downloads | Tutorials
The DSS SOAP API responds in XML format, but this old API will be deprecated, so there is no point in starting a new development project with it now.
I recommend you use the DSS REST API instead, which responds in JSON format.
For a comparison of the 2 APIs, see here.
This is not exactly what you are asking for, but that is what is available.