# Smart Drawio (MCP server)

> Smart Drawio is an MCP server that adds web browsing tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Generate, validate, repair and style editable draw.io XML diagrams. It has 366 GitHub stars, is released under the MIT license and runs locally with npx -y @yunshenwuchuxun/smart-drawio-mcp.

A local MCP server for generating, validating, repairing and styling editable draw.io XML. It shares the diagram core with Smart Drawio Next. It uses stdio and does not require the Next.js website, a browser, or draw.io Desktop.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/yunshenwuchuxun/smart-drawio-next |
| GitHub stars | 366 |
| License | MIT |
| Language | JavaScript |
| Transport | stdio |
| Packages | npm: @yunshenwuchuxun/smart-drawio-mcp |
| Remote URL | none |
| Needs API key | yes |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Web & browsing |
| Latest release | tools-v0.1.0 (Oct 14, 2026) |
| Last commit | Oct 14, 2026 |
| MCP registry name | io.github.yunshenwuchuxun/smart-drawio |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "smart-drawio": {
      "command": "npx",
      "args": [
        "-y",
        "@yunshenwuchuxun/smart-drawio-mcp"
      ],
      "env": {
        "SMART_DRAWIO_API_KEY": "your-value"
      }
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --env SMART_DRAWIO_API_KEY=your-value --transport stdio smart-drawio -- npx -y @yunshenwuchuxun/smart-drawio-mcp
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "smart-drawio": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@yunshenwuchuxun/smart-drawio-mcp"
      ],
      "env": {
        "SMART_DRAWIO_API_KEY": "your-value"
      }
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "smart_drawio_api_key",
      "description": "SMART_DRAWIO_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "smart-drawio": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@yunshenwuchuxun/smart-drawio-mcp"
      ],
      "env": {
        "SMART_DRAWIO_API_KEY": "${input:smart_drawio_api_key}"
      }
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

## Environment variables

- `SMART_DRAWIO_PROVIDER`: openai or anthropic; required only for model generation
- `SMART_DRAWIO_BASE_URL`: Model provider HTTP(S) base URL; required only for model generation
- `SMART_DRAWIO_API_KEY` (secret): Your model provider API key; required only for model generation
- `SMART_DRAWIO_MODEL`: Model identifier; required only for model generation

## Tools

- `list_drawio_options`: {}
- `validate_drawio`: xml
- `repair_drawio`: xml
- `style_drawio`: xml; optional theme, sourceTheme, stylePack, presets, textTool, trick
- `generate_drawio`: prompt; optional chartType="auto", theme="research"

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