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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.
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"
}
}
}Security Report
4.5
Use Caution4.5High RiskThis is a well-structured MCP server for collaborative whiteboarding with proper authentication patterns. It uses environment variables for credentials and has good webhook/session isolation. Minor concerns include broad dependencies and some low-severity code quality issues. Supply chain analysis found 9 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
Scanned 4 files · 14 findings
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.
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