The WooCommerce Stamps.com API Integration extension is a plugin designed for online store owners using the WooCommerce platform.

The WooCommerce Stamps.com API extension allows users to integrate with the Stamps.com API, which is a web-based postage solution. By doing so, store owners can generate and print shipping labels for USPS directly from their WooCommerce store.

One of the primary benefits of using the Stamps.com API Integration extension is that it can automatically create ready-to-print shipping labels for USPS based on the items in an order.

The WooCommerce Stamps.com API extension seamlessly accesses the latest USPS rates when creating labels, ensuring that users have access to the most up-to-date shipping rates.

It is important to note that the extension does not display shipping rates to customers during the checkout process.

If users want USPS rates shown on the cart/checkout pages of their site, they will need to purchase the USPS Shipping Methods extension as well.

By using these two extensions together, customers can see the best rates during checkout, and users can take advantage of those same rates when creating shipping labels via the backend order admin.

In addition to generating and printing shipping labels, the Stamps.com API Integration extension also offers several other features. Users can monitor their Stamps.com account from within the WooCommerce admin, process refunds for and delete Stamps.com shipping labels, and top-up their Stamps.com account.

The WooCommerce Stamps.com API extension also offers address verification in the admin meta box and allows users to view Stamps.com labels for the current order when viewing an order within the WooCommerce admin.

Another key benefit of the Stamps.com API Integration extension is that it offers access to all USPS shipping services, including discounted rates on domestic and international USPS Priority Mail and Priority Mail Express shipments.

The extension also offers discounted Stamps.com insurance, which can save users 10% compared to USPS rates on package insurance.

Overall, the WooCommerce Stamps.com API Integration extension provides a reliable and cost-effective solution for online store owners who want to simplify their USPS shipping process and save money on shipping costs.