# Checkout Rates

Configure the shipping options your buyers see at checkout and calculate live shipping rates for a cart.

A **checkout rates configuration** groups one or more **delivery options** (for example, `live_rate`, `flat_rate`, `free`, or `local_delivery`) under a single storefront. Once a configuration exists, call the quotes endpoint to return the rates a buyer should see for a given destination and cart.

This feature translates external identifiers (`carrier_id`, `service_code`) to the account's connected carriers and services automatically.