Overview Manage cart operations Learn how to use the Storefront API to manage cart operations on a BigCommerce storefront.Manage checkout operations Use the Storefront API to configure the checkout operations for your BigCommerce storefront. Create a subscription Use the Storefront API to manage newsletter and marketing email subscriptions on your storefront.Multi-Storefront API guide Explore how to use BigCommerce's multi-storefront capabilties to launch and manage multiple different storefronts from a single platform.