Tracking usage of credentials is important. If you are signed up as a mobile application developer or an issuing entity, you should now see a new tab called "Usage" in your account window. It is pretty simple for now, but you can keep track of a few key metrics. For mobile app developers: -keep track of how many API calls to remote virtual cards have been made by your mobile application per card. For issuing entities: -keep track of how many API calls have been made from mobile applications to your virtual card -keep track of how many management calls have been made to your virtual cards -your account balance |