Shared visual canvas (Excalidraw) for collaborative whiteboarding between AI agents and humans.
io.github.sshwarts/napkin
https://github.com/sshwarts/napkin
STDIO
No auth required
Hosted endpoint — paste into any MCP client.
Configuration this server reads at startup.
Anthropic API key — enables vision features (describe_elements). Optional.
Where to find authoritative docs and source for napkin.
Open MCP Agent Studio and connect this server to Claude, GPT, Gemini, DeepSeek and more — no install required.
Open Agent Studio