Microservices and APIs are revolutionizing the way software systems operate. In a decentralized architecture, microservices work together by listening to events and responding accordingly through APIs. This event-driven model enables scalability and adaptability, allowing each service to evolve independently. APIs play a crucial role in securing access and managing data, implementing authentication and authorization mechanisms. Additionally, they facilitate fine-grained control over data access and usage, ensuring compliance with data privacy laws.

Source: https://dev.to/apidna/microservices-and-apis-how-they-work-together-1963