How to choose the right API tools for testing and developing?

Hi Friends!

Can anyone recommend an API tool for testing and developing? I would like to learn all about API connections and before I start to learn an API tool like PAW, Apollo or Postman I would like to ask you how to choose the right provider?

I am working with Next JS and need to connect an application with an exchange, to send automatic order informations to the exchange as well as fetching price data from another provider.

My questions are:

  • How do I know which is the best API tool for my project?
  • Are these tools basically the same or is there any difference in how they work?
  • Is there any tool which is more beginner friendly?

Thanks a lot for answers!!