The post provides a detailed guide on using the Postman Chrome Developer tool to interact with the Couchbase Mobile Sync Gateway's REST API, specifically focusing on Couchbase Mobile v1.4. It outlines the process of setting up the Sync Gateway, which syncs data across devices and the cloud via Admin and Public ports, and demonstrates how to download and use Postman collections and environment definitions from a GitHub repository. The guide emphasizes the importance of configuring Postman to work with the appropriate environment settings, allowing users to query and test the REST interface effectively. Additionally, it introduces Newman, a command-line interface tool for running Postman collections, which can be useful for integrating API tests into continuous integration processes. The post encourages user contributions to the GitHub repository for enhancements and provides contact information for further queries or support.