To connect to an Open Data API using Virtual DataPort, you have to create a new data source in Virtual DataPort Admin tool based on the type of the Open Data API such as Web Service, JSON, XML…
Over the created Virtual DataPort data source you can create base views. Then, you can combine these views to create new derived views.
Lastly, you can publish these views as an web service (REST or SOAP), or even access the views by using the Information self-service tool.
For more information I would suggest you to have a look at the sections "[Creating Views]( https://community.denodo.com/docs/html/browse/6.0/vdp/administration/creating_views/creating_views)", “[Creating derived views]( https://community.denodo.com/docs/html/browse/6.0/vdp/administration/creating_views/creating_derived_views/creating_derived_views)” and “[Publication of Web Services]( https://community.denodo.com/docs/html/browse/6.0/vdp/administration/publication_of_web_services/publication_of_web_services)” from Virtual DataPort Administration Guide.
Hope this helps you!