Excalidraw Mcp

This server gives Claude direct access to your Excalidraw diagram files through stdio transport. It exposes three core operations: createNode for adding labeled shapes, createEdge for drawing arrows between nodes (referenced by ID or label text), and deleteElement for removing items. You also get getFullDiagramState, which returns a markdown representation of everything in your diagram including frames and colors. Point it at an .excalidraw file via the required diagram flag, and you can have Claude build or modify technical diagrams conversationally instead of clicking around the canvas. Useful when you're sketching architecture or workflows and want to iterate through natural language rather than manual editing.