API Test is a free Chrome extension developed by mmczaplinski. This extension, created with the help of extensionizr.com, is designed to assist developers in testing APIs. With API Test, users can easily send HTTP requests, view the responses, and analyze the data received.

One of the main features of API Test is its user-friendly interface. The extension provides a simple and intuitive way to input the necessary data for making API requests, such as the request method, URL, headers, and parameters. Users can also specify the request body and choose the response format, making it flexible for different API testing scenarios.

Another notable feature of API Test is its ability to handle authentication. The extension supports various authentication methods, including basic authentication and OAuth. This allows developers to test APIs that require authentication without any hassle.

Overall, API Test is a valuable tool for developers who need to test APIs regularly. Its straightforward interface and support for authentication make it a convenient choice for API testing in the Chrome browser.