Strapi is an open source headless CMS that provides a customizable content management system and API for your projects. It allows you to manage content in a visual interface and use a REST or GraphQL API to retrieve the data.

TypeScript is a superset of JavaScript, providing optional static typing, classes, interfaces, and other features that help developers write more maintainable and scalable code. TypeScript's static typing system can catch errors at compile-time, making it easier to build and maintain large applications.