There are two ways to know the Trestle usage today. One is through the monthly invoice sent, which calculates the usage in the previous month per product used.
To know the usage on an ongoing basis, you will have to send a request to email@example.com. As the feature is being rolled out as part of our Developer Portal, it is available right now only on a per-request basis.
Once enabled and confirmed by Trestle Support, log in to the Developer Portal. Within the app, you will see “Check Usage” on the page.