Which of the following tools can be used for API testing in MuleSoft?

The chosen answer is correct because Mulesoft API Tester, previously known as RAML Tester, is specifically designed for testing APIs developed using MuleSoft. It provides functionalities to validate the API design and test its responses based on the API specifications written in RAML. This tool helps ensure that the API behaves as expected, validating various API endpoint responses, and supporting different HTTP methods.

MuleSoft DataWeave is primarily a data transformation language used for transforming and querying data, and while it can be useful in the broader context of data processing within APIs, it does not serve as a testing tool for API functionality itself.

The MuleSoft Connector Kit is aimed at enabling the creation of reusable connectors for different services and applications, streamlining integration tasks but not for API testing purposes.

MuleSoft Deployment Manager, on the other hand, focuses on the deployment processes of applications built in MuleSoft, managing the lifecycle of applications within MuleSoft’s runtime environment, and does not have any functionality related to API testing.

In summary, the Mulesoft API Tester provides targeted capabilities for API testing, validating both the design and functionality of APIs, making it the appropriate choice among the options provided.