@types/node provides TypeScript definitions for Node.js. It's essential for any TypeScript project using Node.js, enabling type checking and autocompletion for Node.js APIs. This package offers accurate and up-to-date type information for Node's built-in modules like fs, http, path, and more, improving code reliability and developer productivity. By providing TypeScript definitions, it allows you to leverage TypeScript's static typing and error detection capabilities within your Node.js development workflow.