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PluginUpdated

WooCommerce Stamps.com API

by WooCommercev2.3.7Unlimited sites

WooCommerce Stamps.com API is a plugin by WooCommerce that connects your store to Stamps.com.

Product facts

Version
2.3.7
Released
10 September 2026
Type
Plugin
Licence
GPL
Included in
Every plan, or $6.99 / year on its own

Overview

Preparing labels by hand means copying addresses, looking up postage and switching between tabs. This plugin moves that work into WooCommerce. It creates shipping labels from your store orders and pulls postage rates straight from Stamps.com, so each order can go from processing to a printable label without leaving the admin area.

It also covers the tasks around a label. You can verify addresses, refund labels, delete labels and top up your Stamps.com account from the same screen. Discounted USPS rates and discounted package insurance are part of the Stamps.com connection. Paired with the USPS Shipping Methods extension, discounted rates can also appear for customers at checkout. It fits stores that ship regularly, from a few parcels a day to warehouse volumes.

Features

  • Automatic label creation: Generate ready-to-print USPS shipping labels directly from WooCommerce orders, which cuts repetitive data entry and the errors that come with it.
  • Discounted USPS rates: Access USPS shipping rates through Stamps.com, including discounted Priority Mail and Priority Mail Express rates with no minimum volume requirements.
  • Real-time postage rates: Get current USPS postage costs directly from Stamps.com, so the rate you see when preparing a shipment is accurate.
  • Multiple carrier labels: Create shipping labels for USPS, UPS and other popular carriers, which helps when your orders do not all travel the same way.
  • Address verification: Check shipping addresses for accuracy so you can catch mistakes early and reduce delivery problems.
  • Order management in admin: View labels, process refunds, delete labels and top up your Stamps.com account without leaving the WooCommerce dashboard.
  • Discounted package insurance: Insure shipments through Stamps.com at 10% less than standard USPS insurance rates, for affordable protection on valuable parcels.
  • Checkout rates with USPS extension: Combine the plugin with the USPS Shipping Methods extension to show discounted USPS rates to customers during checkout.

Best for

  • WooCommerce stores shipping orders with USPS
  • Small businesses that print labels every day
  • Warehouses handling high shipping volumes

Changelog

Version 2.3.7 — 3 September 2026

  • Improved WooCommerce 11.1 Compatibility.

Earlier versions

  • 2.3.4 (27 July 2026): 1 improved
  • 2.3.3 (30 June 2026): 1 fixed
  • 2.3.2 (22 June 2026): 1 improved

FAQ

Is WooCommerce Stamps.com API free?

The code of WooCommerce Stamps.com API is licensed under the GPL, so anyone may use, change and share it. Buy GPL is a paid service: a plan or a purchase of WooCommerce Stamps.com API gives you the download and its updates. The developer's own support, licence key and online services are not included.

Which version of WooCommerce Stamps.com API is this?

Version 2.3.7, released 10 September 2026. New versions appear here when the developer publishes them.

How do I update WooCommerce Stamps.com API?

Install Buy GPL Updater on your site and paste your key from My Account. It installs new versions of WooCommerce Stamps.com API for you.