MCP Servers

Excalidraw MCP App Server

Streams hand-drawn Excalidraw diagrams with smooth viewport camera control and interactive fullscreen editing, enabling diagram creation via natural language.

README

Excalidraw MCP App Server

MCP server that streams hand-drawn Excalidraw diagrams with smooth viewport camera control and interactive fullscreen editing.

Features

Streaming SVG rendering with draw-on animations
Viewport camera control with smooth pan/zoom
Label binding (text auto-centered inside shapes)
Interactive Excalidraw editor in fullscreen mode
Screenshot context sent back to Claude for iterative feedback

Install

Option 1: Download Extension (Recommended)

Download the latest excalidraw-mcp-app.mcpb from Releases
Double-click the .mcpb file to install in Claude Desktop
Done — start using Excalidraw in your conversations

Option 2: Build from Source

git clone https://github.com/antonpk1/excalidraw-mcp-app.git
cd excalidraw-mcp-app
npm install
npm run build

Then add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "excalidraw": {
      "command": "node",
      "args": ["/path/to/excalidraw-mcp-app/dist/index.js", "--stdio"]
    }
  }
}

Restart Claude Desktop to pick up the new server.

Usage

Ask Claude to call read_me first (loads the element format reference)
Then ask Claude to draw a diagram using create_view

Example prompt: "Draw an architecture diagram showing a user connecting to an API server which talks to a database"

License

MIT

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