Hi @Pacific Licensing,
Welcome to the Docusign Community!
We are glad to have you here and can't wait to help share as much knowledge as possible.
I understand that you are looking to confirm how to add more users with your current plan setup, and I will share more details on the topic.
All the “API” plans will support single membership accounts only. To get access to a plan configuration that would allow you to use custom API and multi-user accounts you will need a customized contract with us. Our Sales team will gladly provide you with more details on what options will best suit your needs, you may contact them by filling out the form provided below:
Contact Sales
Feel free to let us know if you need further assistance with this.
Thank you for using Docusign, we hope you have a wonderful rest of your day!
Best regards,
Alejandro R. | Docusign Community Moderator
Please click "Best Answer" below if you find my reply to be a valid solution to your issue!