Microservice architecture is a modern approach to building applications that emphasizes the use of independent, loosely coupled services, each with a specific domain responsibility, to create scalable and maintainable applications. This architecture contrasts with monolithic systems, which consolidate all functionalities into a single codebase, making them harder to scale and update. Microservices offer flexibility and resilience, allowing individual components to be deployed and scaled independently, which is particularly advantageous during high demand or when deploying new features. The MACH (microservices, API-first, cloud-native, and headless) framework exemplifies this approach, facilitating the transition from legacy monolithic systems by gradually extracting functions into separate services. Companies like Amazon, Netflix, and Spotify have adopted microservices to enhance scalability and reduce technical debt. Content platforms like Contentful support microservices by providing tools and APIs that integrate seamlessly into a composable architecture, offering a content layer that decouples content from presentation, which enhances adaptability and functionality across multiple digital experiences.