Applications/ Forms
04/11/2025
Address Matching System API (AMS API) Sample License Agreement

United States Postal Service® sample license agreement for the Address Matching System Application Program Interface (AMS API) Product.

Applications/ Forms
02/13/2025
Applications/ Forms
12/13/2024
Customer Outage Questionnaire

Use this document to report an outage or system errors.  Please send to PackageFraudPrevention@usps.gov and denote the e-mail as high importance.

Applications/ Forms
10/01/2024