The text highlights the integration of a "Run with Postman" button into Clearbit's documentation, allowing users to easily test API endpoints without needing to write any code. By clicking this button, users can add a pre-configured Clearbit collection to their Postman account, which includes common API requests and automatically fills in API credentials if the user is logged in. This feature is designed to facilitate both new users exploring Clearbit and existing users who need to quickly test API responses, offering a streamlined experience for interacting with Clearbit's API through Postman.