Get users API Key via API

I have a number of email accounts that aren't people but business units.  They want to use the API to send business unit messages.  Since we use SSO they can't sign into OneSpan as that non-existant person.  Delegation and get api key doesn't give it for the person but rather the delegatees API key.  Is there a call or series of calls I can use to obtain the API key?

Currently I page through all users until I get to the correct one within the subaccount and then construct it but it would be easier if I could just request the API key for a user.

Thx