I thought the title is fine as is, because this project is only interesting for those who know what Postman is, which is kind of the industry standard in its fi

I thought the title is fine as is, because this project is only interesting for those who know what Postman is, which is kind of the industry standard in its field. Long story short, both of these are tools used for testing APIs. You use them to test an API call using different settings, and monitoring the response. They have more advanced features of course, but this is the main use case.