yctimlin/mcp_excalidraw

**yctimlin/mcp_excalidraw**

Excalidraw MCP Server & Agent Skill Run a live Excalidraw canvas and control it from AI agents. This repo provides: MCP Server: Connect via Model Context Protocol (Claude Desktop, Cursor, Codex CLI, etc.) Agent Skill: Portable skill for Claude Code, Codex CLI, and other skill-enabled agents Keywords: Excalidraw agent skill, Excalidraw MCP server, AI diagramming, Claude Code skill, Codex CLI skill, Claude Desktop MCP, Cursor MCP, Mermaid to Excalidraw. Demo AI agent creates a complete architecture diagram from a single prompt (4x speed). Watch full video on YouTube Table of Contents Demo What It Is How We Differ from the Official Excalidraw MCP What's New Quick Start (Local) Quick Start (Docker) Configure MCP Clients Claude Desktop Claude Code Cursor Codex CLI OpenCode Antigravity (Google) Agent Skill (Optional) MCP Tools (26 Total) Testing Troubleshooting Known Issues / TODO Development What It Is This repo contains two separate processes: Canvas server: web UI + REST API + WebSocket updates (default http://localhost:3000) MCP server: exposes MCP tools over stdio; syncs to the canvas via EXPRESS_SERVER_URL How We Differ from the Official Excalidraw MCP Excalidraw now has an official MCP — it's great for quick, prompt-to-diagram generation rendered inline in chat. We solve a different problem...

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