Smart Search Analytics

I'm working with Smart Search and want to fetch the top-searches data on the analytics page.

I read the API documentation but couldn't find any information regarding this point.
I tried using the endpoint https://rebuyengine.com/admin/api/v1/analytics/at-a-glance/top-searches?startTime=1733720400&endTime=1736312399&limit=10&page=1, but I have no way to obtain the __Secure-rebuyToken to include in the request header.

Please help me, team.
Thank you!