Sleep MCP server

The Sleep MCP Server is a tool that allows you to introduce timed delays in your agent workflows. By pausing execution for specified durations, you can control the flow of your automation tasks, ensuring they execute in the desired sequence—ideal for workflows that require waiting periods between actions.

Installation

Using Package Managers

You can install the Sleep MCP server using one of these package managers:

Smithery:

npx @smithery/cli install @AgentsWorkingTogether/mcp-sleep --client claude

mcp-get:

npx @michaellatman/mcp-get@latest install mcp-sleep

Prerequisites

Before setting up the Sleep MCP server, ensure you have:

• Claude Desktop
• uv

Configuration

Setting Up Claude Desktop

1. Create a configuration file in the appropriate location for your operating system:

   MacOS:

   ~/Library/Application\ Support/Claude/claude_desktop_config.json
   

   Windows:

   %APPDATA%/Claude/claude_desktop_config.json
   

2. Add the following configuration:

   {
       "mcpServers": {
           "mcp-sleep": {
               "command": "uvx",
               "args": [
                   "mcp-sleep"
               ]
           }
       }
   }
   

3. To customize the maximum waiting time (default is 60 seconds), add an environment variable:

   {
       "mcpServers": {
           "mcp-sleep": {
               "command": "uvx",
               "args": [
                   "mcp-sleep"
               ],
               "env": {
                   "MCP_SLEEP_TIMEOUT": "120"
               }
           }
       }
   }
   

4. Restart Claude Desktop to apply the changes.

Running in SSE Mode

For integration with web apps or other MCP clients that support Server-Sent Events:

uvx mcp-sleep --transport sse

Using the Sleep Tool

The Sleep MCP server provides a single tool:

Sleep Tool

This tool pauses execution for a specified duration:

• Inputs:

  • seconds (number): The duration to pause (limited by configured timeout)

• Returns:

  • A confirmation message after the specified seconds: "You can continue to do your task after you've been waiting {seconds} seconds"
  • If the requested wait time exceeds the configured maximum: "My configuration does not allow me to make you wait more than {timeout} seconds"

Docker Configuration

To use the Sleep MCP server with Docker:

{
  "mcpServers": {
    "mcp-sleep": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "MCP_SLEEP_TIMEOUT",
        "mcp/sleep"
      ],
      "env": {
        "MCP_SLEEP_TIMEOUT": "60"
      }
    }
  }
}

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.