AetherDraw Brings AI Agent Control to Infinite Whiteboards via WebMCP

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Developer Shreyash Chaurasia has built AetherDraw, an open-source infinite whiteboard that allows AI agents to directly interact with a visual canvas using the W3C Web Model Context Protocol (WebMCP). The project was created for the DevPost WebMCP Challenge 2026 and is built on top of the Excalidraw canvas engine. Unlike existing approaches that rely on screenshots or fragile mouse-event simulation, AetherDraw exposes the canvas's internal scene data directly to the browser runtime, enabling precise, programmatic control. The tool provides 11 schema-typed functions across four layers covering spatial inspection, diagram creation, element mutation, and layout management. A built-in Developer Inspector lets users monitor registered tools and track live execution events in real time.

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