Kevin Goedecke
Creator
Open-source multiplayer design canvas where AI agents design beside you through MCP. Free while in beta.

Doop at https://doop.design/ is an infinite canvas where AI agents design beside you. They join through MCP on your own account. The docs connect Claude Code with claude mcp add --transport http doop https://doop.design/mcp, then a browser approval.
Codex, Cursor, and other MCP clients use that address. Agents can create frames, stream HTML, and screenshot their own work. A connected GitHub repo can open a pull request with the frame as HTML and CSS.
The site says it is free while in beta, with downloads for macOS and Windows and an iPhone app, and that you can self-host one Docker container plus Postgres. GPT Image 2 draws on the canvas, and a key is needed only for images or the built-in agent. doop.design says the license is MIT. The LICENSE file on https://github.com/kgoedecke/doop is the GNU Affero General Public License version 3.
Pricing: Free while in beta. The pages checked list no paid plan. The site says MIT. The GitHub LICENSE file is AGPL-3.0. Checked November 1, 2026.
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