io.github.cmd8/excalidraw-mcp

@cmd8/excalidraw-mcp

Model Context Protocol (MCP) server for Excalidraw diagrams.

🛠️ Installation

Requirements

• Node.js >= v18.0.0

Install in Cursor

Add to your Cursor MCP config (~/.cursor/mcp.json):

{
  "mcpServers": {
    "excalidraw": {
      "command": "npx",
      "args": ["-y", "@cmd8/excalidraw-mcp", "--diagram", "/path/to/diagram.excalidraw"]
    }
  }
}

Install in Claude Code

claude mcp add excalidraw -- npx -y @cmd8/excalidraw-mcp --diagram /path/to/diagram.excalidraw

Install in Amp

amp mcp add excalidraw -- npx -y @cmd8/excalidraw-mcp --diagram /path/to/diagram.excalidraw

Install in VS Code

Add to your VS Code MCP settings:

{
  "mcp": {
    "servers": {
      "excalidraw": {
        "type": "stdio",
        "command": "npx",
        "args": ["-y", "@cmd8/excalidraw-mcp", "--diagram", "/path/to/diagram.excalidraw"]
      }
    }
  }
}

Install in Windsurf

Add to your Windsurf MCP config:

{
  "mcpServers": {
    "excalidraw": {
      "command": "npx",
      "args": ["-y", "@cmd8/excalidraw-mcp", "--diagram", "/path/to/diagram.excalidraw"]
    }
  }
}

Install in Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "excalidraw": {
      "command": "npx",
      "args": ["-y", "@cmd8/excalidraw-mcp", "--diagram", "/path/to/diagram.excalidraw"]
    }
  }
}

Install in OpenAI Codex

Add to your Codex MCP config:

[mcp_servers.excalidraw]
command = "npx"
args = ["-y", "@cmd8/excalidraw-mcp", "--diagram", "/path/to/diagram.excalidraw"]

CLI Options

• -d, --diagram (required): Path to the Excalidraw diagram file

🔨 Available Tools

createNode

Create a new node (shape with label) in the diagram. Returns the created node ID.

createEdge

Create an arrow connecting two nodes. Nodes can be referenced by ID or by label text.

deleteElement

Delete a node or edge from the diagram by ID or label.

getFullDiagramState

Returns a markdown representation of the complete diagram, including nodes, relationships, labels, frames, and colors.

License

MIT