Drawx MCP server

@drawx/mcp-server

Generate draw.io diagrams and architecture designs from inside Claude, Cursor, or VS Code.

DrawX MCP is a Model Context Protocol server that gives your AI assistant three tools:

• generatediagram** — one-shot: natural-language prompt → complete draw.io XML.
• architectdesign** — from a brief, produce a High-Level Design diagram (optionally an LLD + design doc).
• whoami — verify your API key + see remaining quota.

Behind the scenes it calls the DrawX public API, so output matches the DrawX web app exactly.

Requirements

• Node.js 18+
• A DrawX API key — create one in DrawX → Settings → API keys. Keys start with drawxlive. API access is a paid feature (bundled with the DrawX Pro plan).

Install

npm install -g @drawx/mcp-server

Or, if your MCP client supports npx, no install is needed — reference npx @drawx/mcp-server directly.

Configure your MCP client

Claude Desktop

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

{
  "mcpServers": {
    "drawx": {
      "command": "npx",
      "args": ["-y", "@drawx/mcp-server"],
      "env": {
        "DRAWX_API_KEY": "drawx_live_..."
      }
    }
  }
}

Restart Claude Desktop. In a new chat, ask "Draw me a microservices checkout flow" — Claude will call generate_diagram and show the resulting XML.

Cursor

Edit ~/.cursor/mcp.json:

{
  "mcpServers": {
    "drawx": {
      "command": "npx",
      "args": ["-y", "@drawx/mcp-server"],
      "env": { "DRAWX_API_KEY": "drawx_live_..." }
    }
  }
}

VS Code (Copilot MCP)

Add to your workspace or user settings.json:

{
  "mcp": {
    "servers": {
      "drawx": {
        "command": "npx",
        "args": ["-y", "@drawx/mcp-server"],
        "env": { "DRAWX_API_KEY": "drawx_live_..." }
      }
    }
  }
}

Environment variables

Tools reference

generate_diagram

Turn a description into draw.io XML.

Inputs

• prompt (string, required) — what to draw.
• mode — "flash" (default), "pro", or "ultra". Trades speed for quality.
• previousXml — an existing mxfile to modify.

Output — assistant text: a summary line (model, tokens, cost) followed by the full ... XML in a fenced code block. Paste the XML into diagrams.net or save as .drawio.

architect_design

Run the DrawX Architect Co-Pilot on a brief. Streams intermediate progress; returns a JSON payload with hld (and optional lld, doc).

Inputs

• brief (string, required, ≥ 20 chars) — what to design.
• depth — "hld", "hldlld" (default), or "hldlld_doc".
• style — "cloud_agnostic" (default), "aws", "azure", or "gcp".
• mode — "flash" (default), "pro", or "ultra".

whoami

No inputs. Returns your email, plan, API tier, and remaining monthly API quota.

Quota + rate limits

API usage is metered on a separate tier from your in-app usage. Pro subscribers get 200 API calls / month. The rate limit is 60 requests / minute. On the free plan, API access is not enabled — upgrade at getdrawx.com.

Local development

Shortened. The full README is on GitHub.