I have found a workaround to us the HTTPS request & get the job done.
Here is one of the request
https://wapdavis.webex.com/davis/api/v1/orgs/{orgId}/dashboards/{dashboardID}/charts/{tableID}/table/show
To get the MPP device ID's you can try with the below HTTP request- replace the OrgID with your OrgID & it should return a list of all devices under that Org
'https://csdm-r.wbx2.com/csdm/api/v1/organization/{OrgID}/devices/_search'