How to embed chart with private stats?

So, I am building a private marketing dashboard page in my current project, available to me only, and I
wanted to embed simpleanalytics stats there as well. I’ve tried to use this article, but my websites data is private and in documentation I couldn’t find an option to provide an Api-Key. Is it possible to embed chart of a hostname that is set to private in simpleanalytics?

Best,
Slava