private static void Main(string[] args) { var Url = ConfigurationManager.AppSettings["Url"]; var Password = ConfigurationManager.AppSettings["Password"]; var ThirdPartySourceId = int.Parse(ConfigurationManager.AppSettings["ThirdPartySourceId"]); var DealerEndPointId = 2; IOpenMateAPI api = new OpenMateAPI(Url, ThirdPartySourceId, Password); var result = api.GetServiceCatalog(DealerEndPointId); foreach (var r in result) { Console.WriteLine("{0} - {1}", r.MajorGroupID, r.MajorGroupDescription); } Console.ReadKey(); }