Correios is a Brazilian courier company with delivery services to over 200 countries, which you can use as an additional shipping method on your WordPress Shopping Cart Plugin.
The plugin will take your Correios account information and send a request through to Correios on the shipping step of the checkout procedure to calculate shipping for the order. Included in the request is the origin address, destination address, order weight/dimensions and other data.
See the Correios documentation for installation, activation and configuration instructions.
Features of this WordPress Shopping Cart Plugin Extension
Configure your Correios shipping method with your Correios details and other settings in order to start using it in your shop.
Easily install, active and start using your Correios extension plugin to fetch shipping services/rates for your customers.
Correios will return shipping services/rates from multiple carriers based on order origin, destination, weight, dimensions, etc.