Is Microsoft Graph only for Office 365?

Question

The reading I'm doing here seems to indicate that Microsoft Graph is for exposing Office 365 as an API.
The same link indicates its Office 365 and Azure AD. But you have to have an O365 account to interact with the graph. That eliminates the use case of people who use only Azure AD, say for authentication and authorization in SaaS apps. So, I've been asking about using Micrsoft Graph vs using Azure AD. Is it that as long as I'm not interested in the 0365 side of things that I should stick to the AD graph?

Update: Here's a blog from Microsoft on the matter. They said, "We strongly recommend that developers start using Microsoft Graph over Azure AD Graph, unless specific gaps prevent you from using Microsoft Graph right now."

Answer 1

Even if all you want to use are directory features, I would encourage you strongly to use Microsoft Graph. We are adding new directory features to Microsoft Graph that may not show up in AAD Graph and we are busy working to make sure that Microsoft Graph provides all the directory features that AAD Graph provides (and more).

You don't have to have an O365 subscription to use Microsoft Graph (just an AAD tenant) - it's just that Microsoft Graph exposes a lot of rich data that comes from Office 365, including calculated insights.

Please let me know if you are having any challenges with this.

Hope this helps,