Multiplayer Server Pause (Forge)
This mod provides a convenient solution for pausing Minecraft servers. When all connected players are on pauseable screens (such as inventory menus), the server automatically enters standby mode.
You can configure the mod to pause the server when there are no connected clients, which significantly reduces CPU load. There's also an option to send a chat message when pause is activated.
For server administrators, a /pause command has been added, allowing you to forcibly stop the server regardless of player status.
Important: The mod must be installed on both client and server for proper operation.
A corresponding version of the mod is available for Fabric users.