Yes, the Carrier Real-Time Shipping Rates Service feature is available for Shopify. With Calcurates app for Shopify
you can set up carrier live rates for your Shopify store and combine it with other features
such as Shipping Rules, Delivery Dates, International Duties & Taxes, Smart Packaging, Volumetric Weight, Rate Shopping or Multi-Origin Shipping. The real-time rates from the following shipping carriers
are available for Shopify: FedEx, UPS, USPS, DHL, Australia Post, Aramex (Fastway), Canada Post, Purolator, APC Postal Logistics and more.