The PlanetScale CLI offers a powerful command-line interface (CLI) that enables developers to quickly get up and running with the platform, perform common tasks such as viewing databases, creating databases, running SQL queries, and deploying schema changes. To use the CLI, developers must first install it and connect to their PlanetScale service using a login command. Once connected, they can list their databases, view database contents, create new tables, and manage branches with the platform. The CLI also supports features such as creating deploy requests, merging changes into production branches, and managing branch versions. By leveraging the PlanetScale CLI, developers can streamline their workflow, automate tasks, and improve collaboration within their development teams.