Verified Calls provide a Data Studio dashboard to expose valuable metrics to partners.
Get view access to the dashboard
The registration form contains a question about the email accounts used to view Analytics Dashboard. The emails listed on the form already have the view access to the dashboard. For other emails you may need to get the view access, feel free to reach out to Google Support Team to add.
On the dashboard, you can view the metrics to see the traffic, the number of verified calls, etc. You are also able to download the data manually. If you want to query the data through an API, feel free to set up Metrics API.