Which AWS service meets these requirements?

Explanations:

AWS Lambda is a serverless compute service that runs code in response to events. However, it requires additional code to be written for handling events and connecting data sources, which does not align with the requirement for a solution that requires no additional code.

Amazon Simple Queue Service (SQS) is a message queuing service that enables decoupling of microservices. It is serverless but primarily facilitates communication between services and does not provide a direct solution for connecting application data from multiple sources without additional coding.

Amazon CloudWatch is a monitoring and observability service for AWS resources and applications. While it helps track performance metrics and logs, it does not facilitate connecting or integrating application data from multiple sources without writing code.

Amazon EventBridge is a serverless event bus that connects application data from various data sources. It enables event-driven architecture without the need for writing additional code, making it suitable for integrating applications across different AWS services and third-party systems.