Koskamo

excalidraw-mcp-server

A security-hardened MCP server for Excalidraw that provides 16 diagramming tools, API key authentication, rate limiting, and real-time WebSocket sync. It enables AI clients like Claude Desktop and VS Code to create, update, and export diagrams with inline SVG rendering.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

excalidraw-mcp-server logo, by debu-sinhaCommunity listingLocal stdioSource reviewed; not executedPublished by debu-sinha
You need:npm install -g excalidraw-mcp-server
Vendor documentation

What you can do with it

  • Create and update diagram elements like rectangles and arrows
  • Export diagrams to excalidraw.com with one click
  • Collaborate on the same canvas through authenticated WebSocket connections
  • Convert Mermaid diagrams to Excalidraw format

Source and maintenance

Community listingRegistry 1.0.2
mcp-registry: io.github.debu-sinha/excalidraw@1.0.2Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

excalidraw-mcp-server 1.0.2

npm
excalidraw-mcp-server package definition
{
  "version": "1.0.2",
  "transport": "stdio",
  "identifier": "excalidraw-mcp-server",
  "registryType": "npm"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "excalidraw-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "excalidraw-mcp-server@1.0.2"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "excalidraw-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "excalidraw-mcp-server@1.0.2"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "excalidraw-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "excalidraw-mcp-server@1.0.2"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "excalidraw-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "excalidraw-mcp-server@1.0.2"
      ]
    }
  }
}

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