Napkin

A shared whiteboard for you and your AI agent I wanted my AI agent and me to be able to point at the same thing. Any MCP-capable agent can read the canvas, draw on it, drop thought bubbles, animate elements, and react when you sketch something.

→ sshwarts/napkin · listed on glama

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 2 credentials: ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configAGENT_TRIGGER_DEBOUNCE_MS— (default 3000)

🔐 secretANTHROPIC_API_KEY— (required for vision tools only - others may be used)

🔐 secretANTHROPIC_AUTH_TOKEN

configGRID_CELL_SIZE

configMCP_WS_PORT— (default 3002)

configNAPKIN_COMPACT_TRIGGERS— (true/false, default false)

configNAPKIN_DEFAULT_FONT_FAMILY

configNAPKIN_EXPORT_DIR— (optional base dir for relative exports)

configNAPKIN_INSTRUCTIONS_PROFILE

configNAPKIN_MCP_PORT— (default 3003)

configNAPKIN_SESSION_PATH

configNAPKIN_SESSION_TTL_MS— (default 7200000)

configNAPKIN_TRANSPORT— (http or stdio, default http)

configNAPKIN_TRIGGER_INCLUDE_CANVAS— (true/false, default false)

configNAPKIN_TRIGGER_SEMANTIC_ONLY

configNAPKIN_TRIGGER_WEBHOOK— OpenClaw — built in. Set in your environment and it routes automatically.

configNAPKIN_VISION_MAX_TOKENS

configNAPKIN_VISION_MODEL

configNAPKIN_WEBHOOK_DISABLED

configPROXIMITY_CONFIDENCE_THRESHOLD

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/sshwarts-napkin-1wlnt3)](https://m8ven.ai/mcp/sshwarts-napkin-1wlnt3)

commit: 50bd921d38f07c2abf8fe7044b44412b1388a45d

code hash: 7e81bc41e103054bc5b3bb093ac4c92aa5dba2e2a1c8974064245cbc4cee6e3c

verified: 4/18/2026, 6:16:47 PM

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