Yes, all the USPS postal address APIs are completely free to use after account registration. The APIs are to be used exclusively for shipping and mailing services as written in the USPS terms of service.
What is the URL for USPS?
www.usps.com
How do I validate an address with USPS?
Use www.usps.com to check the ZIP Codes in your list. Process your address list through CASS-certified software. Address List Correction Service. You can submit a printout of your list to the Postal Service and we will mark any changes.
What software does USPS use?
Currently, USPS drivers use popular route-tracking software and apps, such as Google Maps, Apple Maps, or Waze, to help quickly calculate their routes between various drop-off points.
What database does USPS use?
United States Address Management System (AMS)
What does USPS tracking number start with?
Most domestic services (USPS Priority Mail, for instance) come with tracking numbers starting with a set of numbers, such as 9400. On the other hand, USPS international tracking numbers begin with a combination of letters.
How many digits is a USPS tracking number?
USPS tracking numbers are normally 20-22 digital long and do not contain letters.Dec 28, 2018