Description: Fault Tolerance APIs are designed to continue functioning correctly in the event of a failure of some of their components. This means that even if a part of the system experiences an error, the API can continue to operate and provide services to users. These APIs are fundamental in environments where availability and service continuity are critical, such as in various applications across different industries. The main features of fault-tolerant APIs include redundancy, where multiple instances of a service are implemented to ensure that if one fails, another can take over its function. Additionally, they often incorporate failure detection and automatic recovery mechanisms, allowing the system to restore itself without manual intervention. The relevance of these APIs lies in their ability to enhance the resilience of applications, ensuring that users have continuous access to services, which in turn improves customer experience and trust in the platform. In an increasingly technology-dependent world, fault tolerance has become an essential requirement for designing robust and reliable systems.