Show USPS rates at checkout

The add-on connects your WooCommerce store to the current USPS API platform and shows available shipping options in the cart and checkout. USPS returns rates based on cart weight, shop location and delivery destination. Domestic and international services are supported, including USPS Commercial Pricing.

Customers can select from the services you make available. You can limit the list to services available for a customer's address or choose services manually.

PRO packing and rate settings

The PRO edition includes automatic packing for orders with multiple products, using product weight and volume to calculate how entries can be packed into boxes. You can define custom boxes and enter each box's size, weight and padding.

Adjust USPS rates with fixed or percentage handling fees or discounts. Set a custom origin to use a shipper's address other than the default address in WooCommerce settings, and use multi-currency support when your store needs shipping costs in more than one currency.

Available USPS services

Listed domestic services include First-Class Mail, First-Class Package Service, Priority Mail, Priority Mail Express, Standard Post, Media Mail, Library Mail and Ground Return Service. International options include First-Class Mail, First-Class Package International Service, Priority Mail International, Priority Mail Express International and Global Express Guaranteed.

Other shipping controls

Set a fixed fallback amount for cases when USPS returns no rates, or offer free shipping above an order amount threshold. The plugin also works with shipment insurance and includes a debug mode for troubleshooting rate responses.

It is compatible with Flexible Shipping, so live USPS rates can be used alongside condition-based shipping costs from that table-rate plugin.

Setup

Install and activate the plugin, enter your USPS credentials, then configure the shipping method and choose the domestic or international services to show. Set custom boxes, rate adjustments, origin and currency options as needed. Review the returned rates in the cart and checkout; use debug mode when troubleshooting.

The PRO edition includes priority email support.