Address Information - USPS

← Back to document page

Address Information usps Web Tools Application Programming Interface User Guide Version (07/31/2020) usps Web Tools User Guide 2 Table of Contents Introduction ........................................ ........................................ ........................................ ....... 3 Before you get started: ........................................ ........................................ .......................... 3 Important Notice: User ID ........................................ ........................................ ...................... 3 Important Notice: Address Information API ........................................ .................................... 3 Address Validation API.

You may not package any APIs with your User ID for resale or distribution to others. The U.S. Postal Service does not prohibit the reuse and/or distribution of the API

  Usps, Resale, Packages, For resale