No. Any Endicia account that you open via ShippingEasy is completely free to you! We'll take care of the monthly subscription fee, you just cover postage purchases!
What is Endicia?
What rates does ShippingEasy offer on USPS shipments?
How to: Open a new Endicia (USPS) account for free
What do I do if my Endicia postage accounts could not be created?
How to: Add more postage to my Endicia carrier account