How can I acquire data on Developer App Registration?

[#1]

That data can be seen from the Developer App view on Edge UI, however when I retrieve attributes on the Developer App, registration time is not included. Is there a way this can be retrieved?

[kurtkanaskie]

Using the management API and the createdAt property.

GET {{MGMTSVR}}/v1/o/{{ORG}}/developers/{{DEV}}/apps/{{APP}}

...
"createdAt": 1535123689130,

Then using: https://www.epochconverter.com/

the value is: Aug 24, 2018 11:14:49 AM which is what is reflected in Edge UI