White label analytics and metrics dashboard solution

Hey, fellow indie hackers, I was searching for a solution on Google but didn't find exactly what I would need. I would like to have the possibility to build a custom analytics dashboard for my customers so that they can see/analyze various stats and metrics.

Instead of building a custom analytics dashboard, I would like to find some ready-to-use, SaaS-based solution for this. The requirements would be:

1. Simple rest API, where I would post various events like "page view" "order completed", "X button clicked", etc.
2. Nice looking analytics dashboard with interactive charts where I can add/configure various elements charts/KPI cards
3. White label solution that could be under subdomain https://analytics.mydomain.com.

Maybe having it on iframe would be even better, I could easily embed analytics into my existing product within iframe and load customer analytics data easily by setting iframe src: https://someniceanalyticsplatforms.com/dashboards?customerNumber=1x2y3z

Is this too specific, and do I need to build it from scratch?