User Guides
08/19/2026
Provisioning EMAS API Invoices Data in Informed Visibility® Mail Tracking & Reporting (IV®-MTR)

This guide provides instructions for receiving EMAS API Invoices data through the IV Mail Tracking & Reporting application.

User Guides
08/04/2026
User Guides
07/20/2026
Domestic Merchant Returns API: User Guide

This user guide provides examples of XML transactions to the USPS Merchant Returns web service and guidance for installation.

User Guides
06/29/2026
Viewing MGI Credit Balances and Postage Statements

My Products Portal customers can view incentive credit balances and postage statements
associated with their account through the portal.

User Guides
04/13/2026
Provisioning Enterprise Payment (EPS) and USPS Ship (formerly Package Platform (PPC)) Data through Informed Visibility® (IV®)

This guide provides instructions for receiving Enterprise Payment System (EPS) and USPS Ship (formerly Package Platform Concept (PPC)) data through the IV Mail Tracking & Reporting (IV-MTR) application. Instructions include how to get access, create and manage a data feed, manage the address book, and manage data delegation.

User Guides
03/30/2026
USPS APIs Terms and Conditions

ACKNOWLEDGEMENT AND ACCEPTANCE. Read this carefully before registering to use the USPS API services. By utilizing the APIs, you hereby ACCEPT ALL of the terms and conditions of this Agreement. 

User Guides
03/24/2026
Tracking Access Control Tech Sheet

Package Tracking allows seamless integration of real-time tracking information into business systems, enabling monitoring of USPS package status from shipment to delivery.  USPS is upgrading tracking data access to enhance security and combat fraud by modernizing and securing customer access.

User Guides
03/16/2026
Adjustments to Mail Growth Incentives Registration

MGI Customers can submit multiple requests to the Program Office to initiate discussions for adjusting existing Incentives Registration service requests that are in review.