Sherlock Domains MCP server

This MCP server implementation provides domain buying and management capabilities through the Sherlock Domains service. It offers a simple note storage system, summarization functionality, and tools for managing domain-related information.

Installation

Setting Up with Claude Desktop

To integrate the Sherlock MCP server with Claude Desktop, you'll need to modify the Claude desktop configuration file:

• On MacOS: Located at ~/Library/Application\ Support/Claude/claude_desktop_config.json
• On Windows: Located at %APPDATA%/Claude/claude_desktop_config.json

Configuration Options

Add the following to your configuration file:

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

Usage

Available Resources

The server implements a note storage system with:

• Custom note:// URI scheme for accessing individual notes
• Each note has a name, description, and text/plain mimetype

Working with Prompts

The server provides a summarization prompt:

• summarize-notes: Creates summaries of all stored notes
  • Takes an optional "style" parameter (brief/detailed) to control the level of detail
  • Automatically combines all current notes with your style preference

Using Tools

The server implements the following tool:

• add-note: Adds a new note to the server
  • Required parameters:
    • "name": The title of your note
    • "content": The text content of your note
  • The server will update its state and notify clients of resource changes

Troubleshooting

Using MCP Inspector

For troubleshooting issues, you can use the MCP Inspector tool:

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

After running this command, the Inspector will display a URL you can open in your browser to begin debugging sessions and track the communication between Claude and the MCP server.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "sherlock-mcp" '{"command":"uvx","args":["sherlock-mcp"]}'

See the official Claude Code MCP documentation for more details.

For 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 > Tools & Integrations and click "New MCP Server".

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

{
    "mcpServers": {
        "sherlock-mcp": {
            "command": "uvx",
            "args": [
                "sherlock-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 explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

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

3. Restart Claude Desktop for the changes to take effect