USPS Rates

Provides USPS shipping rate estimates.

The USPS Rates shipping add-on for Shopp provides real-time shipping estimates for the United States Postal Service.

The USPS Rates add-on will calculate rates for the following services:

  • First-Class Mail®
  • Express Mail®
  • Priority Mail®
  • Standard Mail®
  • Media Mail®
  • Library Mail®
  • Globel Express Guaranteed®
  • Express Mail® International
  • Priority Mail® International
  • First-Class Package International Service™


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