Unixcop published a guide about installing Postman on CentOS or RHEL.

How To Install Postman on CentOS & RHEL

In this article, we will show you how to install Postman in CentOS and Redhat systems. Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.

How To Install Postman on CentOS & RHEL - Unix / Linux the admins Tutorials