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Excalidraw MCP Server

Generate architecture diagrams and whiteboard sketches from natural language descriptions.

Capabilities
Diagrams Whiteboard Architecture Sketches
Maintained by
Excalidraw
Hosting
Hosted by the vendor
Authentication
None
Last checked

MCP App that renders interactive diagrams in supporting clients; local use requires building from source or the .mcpb bundle.

How to connect the Excalidraw MCP server

Pick your AI client and paste the snippet. New to this? Our guide to how MCP clients and servers fit together explains what each piece does.

Claude Code

Terminal
claude mcp add --transport http excalidraw https://mcp.excalidraw.com
Full Claude Code setup guide →

Claude Desktop and claude.ai

Settings → Connectors → Add custom connector
Name: Excalidraw
Remote MCP server URL: https://mcp.excalidraw.com

Custom connectors need a Pro, Max, Team or Enterprise plan. On Team and Enterprise an owner adds them in admin settings.

Full Claude Desktop setup guide →

Cursor

~/.cursor/mcp.json (or .cursor/mcp.json in a project)
{
  "mcpServers": {
    "excalidraw": {
      "url": "https://mcp.excalidraw.com"
    }
  }
}
Full Cursor setup guide →

VS Code

.vscode/mcp.json
{
  "servers": {
    "excalidraw": {
      "type": "http",
      "url": "https://mcp.excalidraw.com"
    }
  }
}
Full VS Code setup guide →

ChatGPT

Business, Enterprise and Edu plans (and Pro, read-only) can add this endpoint as an app in developer mode. ChatGPT setup guide →

Frequently asked questions

What is the Excalidraw MCP server?

It is a Model Context Protocol (MCP) server — a small piece of software that gives AI assistants like Claude a secure, governed connection to Excalidraw. Generate architecture diagrams and whiteboard sketches from natural language descriptions.

Is there an official Excalidraw MCP server?

Yes. The Excalidraw MCP server is an official integration, maintained by the vendor or the Model Context Protocol project, which makes it the safest default for business use. It is maintained by Excalidraw.

Is the Excalidraw MCP server hosted, or do I run it myself?

It is hosted. Excalidraw runs the endpoint at https://mcp.excalidraw.com, so there is nothing to install: you add the URL to your AI client and connect.

Do I need an API key for the Excalidraw MCP server?

No. The hosted endpoint is open, so there is no key or sign-in to set up.

What can an AI assistant actually do with Excalidraw?

Through this server an assistant can work with diagrams, whiteboard, architecture, sketches — reading from and acting on Excalidraw directly instead of you copy-pasting between windows. What you allow it to do is controlled by the permissions you grant.

How do I set this up for my business?

The setup section above has copy-paste config for Claude Code, Claude Desktop, Cursor and VS Code. If you want it rolled out across a team with permissions, governance and support handled, that is what Crox's Build engagement covers.

New to MCP? Start with our plain-English guide to the Model Context Protocol or see how to connect AI to your business tools without writing code .

Done-for-you integration

Want this connected to your business — with governance handled?

Crox maps your processes, connects AI to the tools you already use, and keeps it working as models change. Start with a readiness assessment or talk to us about a build.