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DimensionExcalidraw MCP ServerA live Excalidraw canvas for AI agents to create, edit, and export diagrams programmatically.WhatsApp Channel for Claude CodeDrive your Claude Code session straight from WhatsApp
FMRS43 / 100 · D64 / 100 · C
Reliability4 / 2010 / 20
Security and permissions6 / 2012 / 20
Maintenance5 / 2012 / 20
Documentation16 / 2016 / 20
Setup experience12 / 2014 / 20
Best for
  • Programming agents that need iterative diagram design
  • Teams that want diagrams managed as repository artifacts
  • Environments using agents like Claude Code, Cursor
  • Individuals who want to talk to Claude from their personal WhatsApp number
  • Developers comfortable configuring from a terminal and using the Claude Code development flag
  • Automation scenarios needing remote tool approval from a phone
Not for
  • One-shot diagram generation where the official MCP might be simpler
  • Scenarios requiring persistent storage (canvas is in-memory by default, clears on restart)
  • Compliance scenarios requiring the official WhatsApp Business API or a Meta developer account
  • Teams needing officially hosted, multi-tenant, or cloud multi-instance deployment
  • Environments unable to guarantee only one client instance at a time
  • Users expecting voice transcription without setting up mlx-whisper themselves
Required permissions
  • Local network access: canvas server binds to 127.0.0.1:3000 by default
  • File system: export and import .excalidraw files
  • Optional share feature uploads an encrypted scene to excalidraw.com
  • Read and send WhatsApp messages as your personal number
  • Access the local runtime state directory ~/.whatsapp-channel/ (auth, allowlists, group configs, inbox)
  • Read and write local repository files and run scripts (e.g. bun scripts/access.ts, scripts/watchdog.sh)
  • Optional local voice transcription (ffmpeg and an mlx-whisper environment)
Risks and side effects
  • Canvas data is stored in memory; restarting the server clears all elements
  • If configured to listen on non-loopback addresses, the API has no built-in authentication
  • Share feature depends on excalidraw.com service, may be affected by network
  • Messages Claude sends appear from your own number and are indistinguishable to recipients
  • WhatsApp allows one linked-device session per account; running two servers makes them kick each other off
  • Access-control commands are deliberately not MCP tools (terminal-only); exposing them to the message side risks prompt injection
  • Session waking depends on the Claude Code channel extension; other clients get no push
  • A known Claude Code client bug (#37933) may cause messages not to arrive, a client-side issue
  • Launching with --dangerously-load-development-channels carries risk, so verify the source is trustworthy
Supported clientsClaude Desktop, Claude Code, Cursor, Codex, OpenCode, AntigravityClaude Code, Codex, Gemini CLI, Cursor
Tools2610