In the old days of using the Azure Machine Learning Workbench, it was easy to get the ML API Key from the portal, but currently (end of 2018) , with the retirement of the Workbench, there is no may to get the ML API key from the Azure portal. It needs to be called through the API to get that key.
Something very weird happened to me last week, I could not run any Sitefinity 11.1 application from the new SitefinityCMS.exe Project Manager. Chrome kept reporting a refused connection as you can see in the image below
While upgrading your Sitefinity site to 11.0, you might be surprised that after you deploy your Sitefinity site to your production server, you might get an error complaining about a missing method exception.