Hi @Kinasz, Mateus,
Per my test, I could get view count by search/query
. For recently viewed page you can use "ViewsRecent" and while "ViewsLifeTime" is update every 14 or 15 days.
https://tenant.sharepoint.com/_api/search/query?querytext='*'&rowlimit=10&sortlist='viewsrecent:descending'
Here is the test result
For the permission level, you could refer to the following issue similar with yours
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