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Doop lets AI agents co-design on a live canvas, but free use has strict limits

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Doop is an open-source multiplayer design canvas, created on 22 August 2026, that allows both humans and AI agents to edit the same HTML-rendering canvas simultaneously in real time. Unlike most AI-assisted design tools, Doop embeds a Model Context Protocol (MCP) server directly into the project, enabling standard connections to agents such as Claude Code or OpenAI Codex without custom adapters. The platform includes live cursors, avatar presence indicators, and a shared activity feed that logs every action by both humans and agents over a single WebSocket room. However, the built-in Doop Agent does not run for free by default — the RESIDENT_TASK_LIMIT variable is set to 0, meaning users must connect a ChatGPT account or provide an OpenAI API key before any real agent task can execute. The project is licensed under AGPL-3.0, requiring anyone who publicly hosts a modified version to release those changes under the same licence, and the Doop name and logo are trademarked separately from the code.

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Doop lets AI agents co-design on a live canvas, but free use has strict limits · ShortSingh