moltin - Inventory, cart, checkout, payments & more through a simple API
Jitterbit - Jitterbit is an open source integration software that helps businesses connect applications, data and systems.
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.
Commerce.js - Rapidly create eCommerce experiences on web and mobile
Cleo Integration Cloud - Secure Integration and Data Movement Platform