How do I install Napkin?

Napkin is a local plugin. Install it using npm package: napkin-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Napkin need?

Napkin requires the following credentials or environment variables: ANTHROPIC_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with Napkin?

Napkin uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Napkin MCP Server

by Sshwarts

Developer ToolsModerate6.5MCP RegistryLocal

Free

Server data from the Official MCP Registry

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

About

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

Security Report

6.5

Moderate6.5Moderate Risk

Valid MCP server (1 strong, 2 medium validity signals). 4 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.

4 files analyzed · 5 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

file_system

Check that this permission is expected for this type of plugin.

network_websocket

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

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

Environment variable: ANTHROPIC_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-sshwarts-napkin": {
      "env": {
        "ANTHROPIC_API_KEY": "your-anthropic-api-key-here"
      },
      "args": [
        "-y",
        "napkin-mcp"
      ],
      "command": "npx"
    }
  }
}

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Local

Napkin MCP Server

About

Security Report

Findings (5)Action required

Permissions Required

What You'll Need

How to Install

Reviews

No reviews yet

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Napkin MCP Server

About

Security Report

Findings (5)Action required

Permissions Required

What You'll Need

How to Install

Reviews

No reviews yet

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