To generate API Keys:
From the menu in the upper left corner, Settings > My Account > API Keys.
Click Generate.
Review the warning and click Generate.
Copy the new access and secret keys to a safe location.
Tenable.io generates new access and secret keys, and displays the new keys in the Custom API Keys section of the page.
Note: You will not be able to view the API Key again after you complete this step, so ensure that you copy it before closing the notification.
Attention: Please perform a connection test to ensure there is a valid connection to the host.
When the discovery operation is finalized, you will be able to see the details on the Assets page.