What is Coinbase API for Node JS?

Could you please elaborate on the Coinbase API for Node.js? I'm curious about its functionalities and how it can be utilized in Node.js applications. What are the main features it offers? Also, could you provide an example of how a developer might use it to interact with the Coinbase platform? Additionally, are there any specific requirements or setup steps needed to integrate the API into a Node.js project? Thank you for your clarification.