Can I see Catalyst usage per function or per Data Store table, or get my billing and usage data through an API?

No. The Billing settings of the Catalyst console report usage and cost per project and per component, not per individual function or Catalyst CloudScale Data Store table, and Catalyst has no API that returns billing or usage data.

To get the most detail the console offers:

1. In Settings → Billing → Breakdown, select Project Usage Stats and click a project to see each component’s usage in that project.
2. In Settings → Billing → Report, filter by Projects and services, and select Daywise or Monthwise to see usage over time.

If you need counts per function or per table, record them in your own application, for example by logging each call with the function or table name, and add them up yourself. To be alerted before costs rise, create a budget with email alert rules in Settings → Billing → Budgets.

Refer to the Billing Settings help page for more information.