Sleep MCP Server

This MCP server attempts to pause execution for a specified duration to control the flow of your agents. Enhance your automation by introducing timed delays, ensuring tasks are executed in the desired sequence. Ideal for managing workflows that require waiting periods between actions.

Setup

Installation

Using MCP package managers

Smithery

To install Sleep MCP for Claude Desktop automatically via Smithery:

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

mcp-get

You can install the Sleep MCP server using mcp-get:

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

Prerequisites

MCP is still very new and evolving, we recommend following the MCP documentation to get the MCP basics up and running.

You'll need:

Claude Desktop
uv

Configuration

1. Configure Claude Desktop

Create the following file depending on your OS:

On MacOS: ~/Library/Application\ Support/Claude/claude_desktop_config.json

On Windows: %APPDATA%/Claude/claude_desktop_config.json

Paste this template in the file

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

Optionally, it replace <MCP_SLEEP_TIMEOUT> with your timeout ( maximum time allowed to wait, default 60 seconds ):

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

2. Restart Claude Desktop

SSE mode

Alternatively, you can run the MCP server in SSE mode by running the following command:

uvx mcp-sleep --transport sse

This mode is useful to integrate with an MCP client that supports SSE (like a web app).

Tools

sleep
- Pause execution for a specified duration to control the flow of your agents.
- Inputs:
  - seconds (number, max timeout config value): Seconds it will take me to tell you to continue
- Returns: You will receive the sentence after {seconds} "You can continue to do your task after you've been waiting {seconds} seconds". If you enter a waiting time greater than the maximum time the result will be "My configuration does not allow me to make you wait more than {ctx.sleep.config.timeout} seconds"

Usage with Claude Desktop

To use this with Claude Desktop, add the following to your claude_desktop_config.json:

Docker

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

Development

Config

If you are working locally add two environment variables to a .env file in the root of the repository:

MCP_SLEEP_TIMEOUT=

For local development, update your Claude Desktop configuration:

{
  "mcpServers": {
      "mcp-sleep_local": {
          "command": "uv",
          "args": [
              "run",
              "--directory",
              "/path/to/your/mcp-sleep",
              "run",
              "mcp-sleep"
          ]
      }
  }
}

Published Servers Configuration

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

Building and Publishing

To prepare the package for distribution:

Sync dependencies and update lockfile:

uv sync

Build package distributions:

uv build

This will create source and wheel distributions in the dist/ directory.

Publish to PyPI:

uv publish

Note: You'll need to set PyPI credentials via environment variables or command flags:

Token: --token or UV_PUBLISH_TOKEN
Or username/password: --username/UV_PUBLISH_USERNAME and --password/UV_PUBLISH_PASSWORD

Docker build:

docker build -t mcp/sleep -f Dockerfile .

Debugging

Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the MCP Inspector.

You can launch the MCP Inspector via npm with this command:

npx @modelcontextprotocol/inspector uv --directory /path/to/your/mcp-sleep run mcp-sleep

Upon launching, the Inspector will display a URL that you can access in your browser to begin debugging.

Sleep Controller