You can check your credit usage at any time. If you work in a team, only the workspace Owner has access to the workspace's credit usages.
If you are a solo creator, you can check how many credits you used following the steps below. If you are a workspace Owner, you can check how many credits your workspace members have used.
Go to wondercraft.ai/studio.
Click on your workspace (it may be called "My workspace") on the top left
Select Workspace settings
Under Billing & Plan, you'll find all the billable activities that consumed credits in the Credits billable history table.