Storefront API
A read-mostly GraphQL or REST API that exposes products, collections, cart and checkout to a custom storefront front-end.
· Reviewed by senior engineers
A Storefront API is the public-facing API a commerce platform exposes for custom front-ends to consume. Shopify's Storefront API is the canonical example: a GraphQL endpoint serving products, collections, cart, customer accounts, search and a path into the platform's hosted checkout. BigCommerce, Salesforce Commerce Cloud and commercetools have equivalents.
The Storefront API is the contract that makes headless commerce possible. It is designed for the browser — public access tokens scoped to read product and cart operations, rate limits per IP, no exposure of admin data. You can call it from a static site, a mobile app, or even straight from a CDN edge function.
The limits are deliberate. You can't write inventory, change prices or fetch other customers' data from the Storefront API — those are admin operations. Checkout is bridged but ultimately handed back to the platform's hosted checkout (Shopify's case) for PCI scope reasons. Designing a headless storefront means accepting the Storefront API's boundaries and architecting the front-end accordingly.
Devinsta builds against Storefront APIs daily — Shopify, BigCommerce, headless WordPress with WooCommerce — and treats the API contract, caching strategy and rate-limit budget as core architectural decisions, not implementation details.