All ShippingEasy accounts include a free Endicia account. This account provide access to specific USPS services:
USPS domestic services:
USPS international services:
What is Endicia?
How to: Open a new Endicia (USPS) account for free
What to do if my Endicia account could not be created?
Overview: Create and print a shipping label
How will my Endicia postage purchases appear on my billing statement?