Serverless Framework API Gateway is a way of creating and managing RESTful APIs without provisioning or managing servers.
X-Ray Tracing is a way of analyzing and debugging production and distributed applications.
You can enable X-Ray Tracing for your Serverless API Gateway by adding a tracing property to your provider section in your serverless.yml file.
One possible reason you should enable X-Ray Tracing for your Serverless Framework API Gateway is to gain insight into the performance and behavior of your serverless application.
With X-Ray Tracing, you can trace user requests through your API Gateway and Lambda functions, identify bottlenecks and errors, monitor service health and latency, and optimize your code and resources1.