SFCC offers two APIs are: Open Commerce API (OCAPI) and Commerce Cloud API (CCAPI) which is in beta.
The Open Commerce API (OCAPI) is a RESTful API used by SFCC which consists of three component APIs:
OCAPI is a fairly robust API, however if your site is still on Pipelines architecture you may have a harder time integrating your existing customizations with OCAPI. In those cases use synthetic APIs and migrate that functionality to OCAPI at a later date. CCAPI layer in beta seems promising, but it is too early to judge the extent in which it will support speedy headless storefronts.
Moovweb XDN lets you deliver your Next.js storefront on Salesforce Commerce Cloud in sub-seconds. The average website on Moovweb XDN sees median speeds of 320ms loads, as measured by Largest Contentful Paint (LCP). But the XDN is much more than a website accelerator. It is a Jamstack platform for eCommerce. Moovweb XDN makes websites faster for users and simpler for frontend developers. The platform was built specifically for large-scale, database-driven websites such as eCommerce and Travel and includes the following benefits:
With the XDN, your Next.js SFCC store will run in sub-second speeds and your developers will be empowered to control edge caching and reduce rework using the various developer productivity tools that come with the platform.
Check out Shoe Carnival, a sub-second SFCC storefront on Moovweb XDN. The shoe retailer has reduced page loads by 92%, outperforms 98% of leading websites, and increased revenue 40% on the XDN.
If you're currently using Next.js, use the this guide to deploy your Next.js application on Moovweb XDN and get sub-second loads in as little as 1 hour of work.