File Merger MCP server

This utility serves as a Model Context Protocol (MCP) server for merging multiple files into a single file. It's designed to be fast, secure, and straightforward, providing a simple way to combine files while ensuring access is limited to specified directories.

Installation

You can install the file merger MCP server using npm:

npm install -g @exoticknight/mcp-file-merger

Alternatively, you can clone the repository and build it yourself:

git clone https://github.com/exoticknight/mcp-file-merger.git
cd mcp-file-merger
npm install
npm run build

Configuration

Setting Up with Claude Desktop

To use this MCP server with Claude Desktop, add it to your claude_desktop_config.json file:

{
  "mcpServers": {
    "file-merger": {
      "command": "npx",
      "args": [
        "-y",
        "@exoticknight/mcp-file-merger",
        "/path/to/allowed/dir"
      ]
    }
  }
}

Make sure to replace /path/to/allowed/dir with the actual directory path you want the server to have access to.

Usage

The file merger MCP server offers two main tools:

Merging Files

Use the merge_files tool to combine multiple files into a single output file:

// Example of how to use the merge_files tool
{
  "inputPaths": [
    "/path/to/first/file.txt",
    "/path/to/second/file.txt"
  ],
  "outputPath": "/path/to/output/merged.txt"
}

The server will respond with a success message that includes details about the merged files.

Checking Allowed Directories

To verify which directories the server is allowed to access, use the list_allowed_directories tool:

// No parameters required

This will return a list of all directories that the server has permission to read from and write to.

Security Considerations

The file merger only has access to directories explicitly defined in your configuration. This ensures that the server cannot access files outside of your specified allowed paths.

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 "file-merger" '{"command":"npx","args":["-y","@exoticknight/mcp-file-merger","/path/to/allowed/dir"]}'

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": {
        "file-merger": {
            "command": "npx",
            "args": [
                "-y",
                "@exoticknight/mcp-file-merger",
                "/path/to/allowed/dir"
            ]
        }
    }
}

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": {
        "file-merger": {
            "command": "npx",
            "args": [
                "-y",
                "@exoticknight/mcp-file-merger",
                "/path/to/allowed/dir"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect