mcp-server-diff-python

An MCP server for obtaining text differences between two strings.

This server leverages Python's standard library `difflib` to efficiently generate and provide differences between two texts in Unified diff format, making it ideal for text comparison and version control purposes.

Features

Tools

The server provides a single tool:

• get-unified-diff: Get differences between two texts in Unified diff format
  • Arguments:
    • `string_a`: Source text for comparison (required)
    • `string_b`: Target text to compare against (required)
  • Return value: A string containing the differences in Unified diff format

Usage

Claude Desktop

Using with Claude Desktop

To use with Claude Desktop, add the server config:

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

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

"mcpServers": {
  "mcp-server-diff-python": {
    "command": "uvx",
    "args": [
      "mcp-server-diff-python"
    ]
  }
}

or Add the following configuration:

git clone https://github.com/tatn/mcp-server-diff-python.git
cd mcp-server-diff-python
uv sync
uv build

"mcpServers": {
  "mcp-server-diff-python": {
    "command": "uv",
    "args": [
      "--directory",
      "path\\to\\mcp-server-diff-python",
      "run",
      "mcp-server-diff-python"
    ]
  }
}

Development

Debugging

You can start the MCP Inspector using npxwith the following commands:

npx @modelcontextprotocol/inspector uvx mcp-server-diff-python

npx @modelcontextprotocol/inspector uv --directory path\to\mcp-server-diff-python run mcp-server-diff-python