Qlik Sense APIs and Licensing - Special Considerations?

There are generally no special consierations for using the APIs themselves. 
However, what does matter is whether your users are authenticated or not, as a virtual proxy configured to accept unauthenticated users allocates Login Access Passes (sessions valid for a limited time, and only a set number available per token) which ultimately consume Tokens. Core-based licensing is also available (usage is based on CPU cores, not users), and this can be combined with Token-based licensing depending on your circumstances/needs.

You can read more about our different licenses below:

• Qlik Sense Token and Access Passes
• Core based licenses in Qlik Sense