Uber, the ride-sharing and transportation company, uses external APIs (Application Programming Interfaces) for a variety of purposes. APIs are essential for Uber's operations, as they enable interactions with third-party services and data sources. The use of these external APIs allows Uber to enhance its services, streamline operations, and improve the overall user experience. Additionally, it enables Uber to focus on its core competencies while leveraging specialized services provided by third-party API providers. By integrating external APIs, Uber can offer a seamless and feature-rich platform for both riders and drivers.