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osCommerce update for USPS Rate V4, Intl Rate V2

Posted by admin On April - 1 - 2012

The U.S. Postal Service has changed their APIs for rate calculation from 1st April 2012.  Web sites have to be updated prior to March 31 to continue working.

So if  you customers are getting rate calculations errors in USPS in oscommerce stores then the update has to be installed.

Contribution can be found here:



This module will need json and simplexml functions of php which are inbuilt in php 5.3.  for it to work.


If  you need support in updating your USPS module you can use the contact us form to get in touch with us. We charge a nominal rate of  150 USD. 

Due to many requests for support we are reducing the price by 50% to 75 USD  for a limited time offer.

75 USD