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UML-MCP-Server

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Overview

UML-MCP-Server is a UML diagram generation tool that allows users to create various types of UML diagrams using natural language descriptions or PlantUML code.

To use UML-MCP-Server, clone the repository, set up a Python virtual environment, install dependencies, and then use it as a library or configure it with compatible clients like Cursor.

  • Supports multiple UML diagram types including class, sequence, and activity diagrams. - Generates UML diagrams from natural language descriptions. - Allows direct use of PlantUML code for diagram generation. - Provides URLs for easy sharing and local file paths for saved diagrams. - Integrates with clients supporting MCP (Model Context Protocol). - Comprehensive logging system for monitoring server status.
  1. Creating class diagrams for software design.
  2. Generating sequence diagrams for process flows.
  3. Visualizing system architecture with deployment diagrams.

Add to your AI client

Use these steps to connect UML-MCP-Server in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "uml-mcp-server-swayingleaves": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "uml-mcp-server-swayingleaves": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "uml-mcp-server-swayingleaves": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "uml-mcp-server-swayingleaves": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "uml-mcp-server-swayingleaves": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "uml-mcp-server-swayingleaves": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-uml-mcp-server-swayingleaves"
      ]
    }
  }
}

FAQ

Can UML-MCP-Server generate all types of UML diagrams?

Yes! It supports various UML diagram types including class, sequence, and activity diagrams.

Is UML-MCP-Server free to use?

Yes! UML-MCP-Server is open-source and free to use.

How do I troubleshoot issues with UML-MCP-Server?

Check the log files for error details, verify dependency installations, and ensure network connectivity.7:["$","div",null,{"className":"container mx-auto flex flex-col gap-4","children":["$L26","$L27",["$","$L28",null,{"currentProject":{"id":2990,"uuid":"7238dc89-9a86-40a8-b2dc-7ed477c2cd40","name":"uml-mcp-server","title":"UML-MCP-Server","description":"","avatar_url":"https://avatars.githubusercontent.com/u/24371302?v=4","created_at":"2025-03-16T11:48:57.580Z","updated_at":"2025-03-16T12:44:30.542Z","status":"created","author_name":"Swayingleaves","author_avatar_url":"https://avatars.githubusercontent.com/u/24371302?v=4","tags":"[]","category":"developer-tools","is_featured":false,"sort":1,"url":"https://github.com/Swayingleaves/uml-mcp-server","target":"_self","content":"$29","summary":"$2a","img_url":"https://camo.githubusercontent.com/2d59d986e33869255381e1439ce249530aa7e52e145f8ee31a2a3bbb108c0671/68747470733a2f2f736d6974686572792e61692f62616467652f4053776179696e676c65617665732f756d6c2d6d63702d736572766572","type":null,"metadata":"{\"star\":\"8\",\"license\":\"\",\"language\":\"Python\",\"is_official\":false,\"latest_commit_time\":\"2025-05-09 15:55:57\"}","user_uuid":null,"tools":null,"sse_url":null,"sse_provider":null,"sse_params":null,"is_official":false,"server_command":null,"server_params":null,"server_config":null,"allow_call":false,"is_innovation":false,"is_dxt":false,"dxt_manifest":null,"dxt_file_url":null,"is_audit":false},"randomProjects":[],"currentServerKey":"$undefined"}]]}]

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