Hi there @material-observer-25 -
The Twitter API requires that you include personal credentials with your API request so that they know who you are and that you are allowed to access that information.
They show how to do this under āGenerating a User Access Token with Postmanā, but it looks like there are broken links and missing screenshots in their tutorial 
Check out these step-by-step instructions for Twitterās OAuth 1.0a Twitter API Authorization