What the author says it does
The MainWP Child Plugin securely connects the WordPress sites you want to manage to the MainWP Dashboard.
The MainWP Child plugin creates a secure connection between your WordPress sites and your self-hosted MainWP Dashboard, enabling you to efficiently manage WP installations from a single, centralized location.
With MainWP Child and the MainWP Dashboard, you can update themes, plugins, and WordPress core across all connected sites, perform backups and security scans, manage posts, pages, users, and comments in bulk, and integrate with popular plugins like WooCommerce, Yoast SEO, and Wordfence.
The MainWP Dashboard also offers features for cost tracking and client management, making it an all-in-one solution for agencies and freelancers looking to manage WP sites efficiently. The functionality can be further extended with a growing library of MainWP Add-ons.
MainWP is the ideal solution for freelancers and agencies managing client sites, developers and designers working on multiple projects, marketers and content managers overseeing various websites, and anyone responsible for maintaining multiple WordPress sites.
Why Choose MainWP for WordPress Management?
MainWP is 100% free and open-source, with no monthly fees, even for unlimited sites.
The opening of the plugin's own description. The full text, installation notes and changelog are on its WordPress.org page.