You can create an unlimited number of Filer API Tokens on the EDGAR Filer Management dashboard, and all are equally valid. 

You may choose to have a single token which you provide to all of your filing agents, or you may choose to create one or more tokens per agent for redundancy.  As the Filer API Tokens expire on a yearly basis, a best practices approach might be to create new token(s) on a semi-annual basis and distribute them to all filing agents that require them.  

Delegating to the filing agent relieves you of this Filer API Token management step, and in Workiva, allows you to submit filings using only a User Token or the “File With Workiva” feature, which closely mimics the current EDGAR filing experience using SEC passwords.