Cone Devtools is a Chrome browser plugin developed by apilabuser. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. This plugin is designed to serve the Cone system's apiCenter by providing various functionalities such as API mocking and resource proxy.

With Cone Devtools, frontend developers can easily proxy project URLs to a mock server during the development process. This is done by configuring URL rules within the Cone system interface. Once the plugin is opened, developers can utilize the proxy feature by sending a request through window.postMessage, specifying the type as "setMockApi" and providing the list of APIs that need to be proxied in the "apiList" parameter.

Cone Devtools is a valuable tool for frontend developers who need to simulate API responses and proxy resources. It streamlines the development process and allows for efficient testing and debugging. Best of all, it is available for free on the Chrome Web Store.