USPS June 24 Change

If you are a USPS user you should have gotten an email about their API change planned for June 24.

This message explains some security improvements planned for the USPS Web Tools services. Effective June 24th, 2021, Web Tools will remove support for all unsecure HTTP endpoints. After this change, all requests to an unsecure HTTP endpoint will fail when attempting to access the Web Tools APIs and integrators may see an error message. To continue using the Web Tools APIs, all requests must be made using the secure HTTPS endpoints listed below. Integrators currently using an unsecure HTTP endpoint should transition as soon as possible to the appropriate secure HTTPS endpoint below to prevent any loss of service. This change will impact only the API endpoints; the API request and response schemas will not change.


You are receiving this message because you have been identified as a user of the unsecure HTTP endpoints for Web Tools API requests. Please review the entire message carefully and share with your web developer, software vendor, and/or IT service provider to determine if your use of the Web Tools APIs will be affected.


Support for the following unsecure HTTP endpoints will be discontinued in all Web Tools environments. In advance of the retirement date, please update your endpoints to the secure HTTPS endpoints listed below.


Web Tools Unsecure HTTP Endpoints Retirement Schedule


Environment Unsecure HTTP Endpoint Retirement Date New Secure HTTPS Endpoint
TEST 06/24/2021
PROD 06/24/2021


Some versions of the osCommerce USPS shipping module will not need to be changed. But other versions will.  What the change is depends on the version your site is using.

If you use USPS and need help determining if your module needs to be patched, please contact us.