Spree Commerce 5.4: Open Source REST API, Next.js eCommerce

Spree Commerce 5.4 ships a complete open source eCommerce stack: a typed TypeScript SDK over a production-grade REST API, a Next.js eCommerce storefront ready to fork and deploy, and everything a team needs to launch cross-border eCommerce, multi-vendor marketplaces, or B2B wholesale portals. These are not separate pieces assembled from different releases. They were designed together, as a single experience, from API contract to checkout flow. Postman’s 2024 State of the API report found that 86% of developers consider REST APIs easier to integrate than GraphQL alternatives, citing simpler tooling and broader language support. Spree Commerce 5.4 leans into that reality. The headless eCommerce platform is accessible to any team that can make an HTTP call or use the TypeScript SDK. Run one command and you have a working store. That shift matters at three levels, and each one speaks to both the technical team building the project and the business team funding it. .