Strapi

Strapi is a headless CMS built on Node.js that lets you model content types visually and expose them through REST or GraphQL endpoints. It adds role-based access control, internationalization, media handling, webhooks, and a plugin ecosystem, and it can sit in front of a database you already operate.

It fits agencies and product teams that want a backend for a mobile app, a website, or a design system without hand-writing the admin layer.

The service can it on your own servers, so the content API and its data stay with you and no per-seat license appears as the team grows.