CS-Cart ShipStation Live Rates — Show the Cheapest Shipping Rate at Checkout

Partners Add-ons & Themes
1

Hello people,

I’ve just released a new CS-Cart add-on that connects directly to ShipStation’s V2 API and automatically displays the cheapest available shipping rate at checkout.

cs-cart-shipstation-addon

:white_check_mark: Compare USPS, UPS, FedEx, DHL, and other ShipStation carriers
:white_check_mark: Auto-select the lowest valid rate
:white_check_mark: Show live shipping costs and delivery estimates
:white_check_mark: Automatic currency conversion
:white_check_mark: Fallback rate support
:white_check_mark: Rate written to order staff notes
:white_check_mark: No core modifications — fully upgrade-safe

Perfect for merchants who want accurate shipping costs, higher conversion rates, and fewer abandoned carts caused by incorrect shipping estimates.

:open_book: Documentation:
https://jukello.com/cs-cart/docs/shipstation_rates_addon_doc.html

:shopping_cart: Marketplace:
https://marketplace.cs-cart.com/cs-cart-shipstation-live-rates-add-on.html

Feedback and suggestions are always welcome! :rocket:

2

Looks like a great addon.
Now do the same with PirateShip!

3

ShipStation Live Rates addon now supports three powerful modes:

  • automatically select the cheapest rate across all configured carriers,
  • display all services from a specific carrier,
  • or limit results to selected carriers for complete control.

Combined with Domestic/International destination filtering, stores can significantly reduce checkout API calls and improve rate calculation speed while offering flexible shipping setups with USPS, UPS, FedEx, DHL, and more.