Workers Analytics Engine
Workers Analytics Engine provides unlimited-cardinality analytics at scale, via a built-in API to write data points from Workers, and a SQL API to query that data.
You can use Workers Analytics Engine to:
- Expose custom analytics to your own customers
 - Build usage-based billing systems
 - Understand the health of your service on a per-customer or per-user basis
 - Add instrumentation to frequently called code paths, without impacting performance or overwhelming external analytics systems with events