draw.io MCP server for Claude Code, Cursor, Codex and VS Code: the AI draws on a live browser canvas you can also edit by hand, with versions and undo

Enables MCP clients to teach on a view-only local browser chalkboard by drawing equations, plots, molecules, diagrams, and science illustrations step by step, with snapshots and saved lessons.

Interactive in-browser canvas for real-time preview of HTML, React components, SVGs, and diagrams with SSE hot-reload