StarUML MCP Server

StarUML is a sophisticated modeler for agile and concise modeling. StarUML MCP Server enables you to create diagrams or generate codes from diagrams in StarUML via prompts.

Setup

Prerequisite:

• StarUML v7.0.0 or higher
• Node.js v22 or higher

Set up claude_desktop_config.json in Claude Desktop as follows:

{
  "mcpServers": {
    "staruml-mcp-server": {
      "command": "npx",
      "args": ["-y", "staruml-mcp-server"]
    }
  }
}

You can use the --api-port= option to change the API server port for StarUML.

Example Prompts

• “Create a class diagram for book store in StarUML”
• “Create a sequence diagram for OAuth authentication in StarUML”
• “Generate SQL DDL from the current ERD diagram in StarUML”

Tools

• generate_diagram
• get_current_diagram_info
• get_all_diagrams_info
• get_diagram_image_by_id

Dev

1. Clone this repository.
2. Build with npm run build.
3. Update claude_desktop_config.json in Claude Desktop as below.
4. Restart Claude Desktop.

{
  "mcpServers": {
    "staruml-mcp-server": {
      "command": "node",
      "args": ["/staruml-mcp-server/build/index.js"]
    }
  }
}