Commerce Layer

Commerce Layer is an API-first commerce platform that gives developers the building blocks for carts, orders, pricing and inventory without prescribing a storefront. Teams connect their own front end, whether a website, app or store terminal, to a set of hosted commerce services.

Its product line includes a stateless universal checkout that handles multiple markets and currencies and works with any payment gateway or tax calculator, a distributed order management system for inventory across locations, a promotion engine with a visual editor and a JSON-based rule language, and a point-of-sale system that uses the same API as online channels. A newer payments API and AI-agent commerce are also highlighted.

Commerce Layer is a commercial hosted service, with a free sign-up and plans listed on its pricing page. It suits engineering-led brands that want to run several markets or channels from one commerce backend.