For C++ and Python applications one can consider using the  SAGA BES adaptor. Please note that this API is limited to:

  • OGF Basic Execution Service interface
  • It support only the two authentication mechanism required by  OGF HPC Basic Profile:
    • Mutual SSL authentication
    • Server SSL authentication + UsernameToken WSS Profile

If you need full functionality offered by the QCG-Computing service you should use the JavaSDK or generate own stubs using provided  schemas.