io.github.sshwarts/napkin MCP Server

io.github.sshwarts/napkin

Repository Registry

What is the io.github.sshwarts/napkin MCP server?

Shared visual canvas (Excalidraw) for collaborative whiteboarding between AI agents and humans.

How to install io.github.sshwarts/napkin

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ANTHROPIC_API_KEY
secret
Anthropic API key — enables vision features (describe_elements). Optional.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "napkin": {
      "command": "npx",
      "args": [
        "-y",
        "napkin-mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>"
      }
    }
  }
}

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