The Weather API Request Builder is a Chrome extension developed by Visual Crossing Corporation. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools.

This extension provides a user-friendly interface to build and parse Visual Crossing Weather API requests. With the Weather API Request Builder, users can easily construct, modify, and verify API requests for weather data.

The extension allows users to start with an existing API request and analyze its parameters, such as location, date range, API key, and other properties. Users can then modify these parameters to test different requests and fine-tune their weather data queries.

One noteworthy feature of the Weather API Request Builder is its ability to automatically replace invalid API keys with the user's personal saved key. This ensures that users can submit their requests without any issues.