A free, real-time whiteboard an AI agent can actually read and draw on — no signup. cnvs.app exposes a public Model Context Protocol (MCP) endpoint, so Claude and other MCP agents read the live board state and write text, sticky notes and Mermaid diagrams straight onto the canvas. Their edits broadcast live to every human on the board. Not a screenshot describer — a genuine ai collaborative whiteboard.
Most tools called an "AI whiteboard" just bolt a chat sidebar onto a canvas, or let you paste a screenshot for the model to describe. cnvs.app is different: the board itself is an MCP server. Point any agent at the public endpoint https://cnvs.app/mcp and it gets first-class read and write access to the same board you're looking at.
ai:<name> author label so you can see what the agent contributed.Because MCP is an open standard, this works with any MCP-capable client — you're not locked into one vendor's assistant. That's why no generic whiteboard ranks for a true whiteboard ai agent: cnvs.app was built as one.
https://cnvs.app/mcp to your MCP client (Claude Desktop, Claude Code, or any MCP agent). See the MCP connection guide for the exact config.| Capability | Generic whiteboard (no AI) | cnvs.app AI whiteboard |
|---|---|---|
| Native MCP endpoint | No | Yes — public https://cnvs.app/mcp |
| AI can read the board | No — screenshot at best | Yes — structured JSON + SVG preview |
| AI can write to the canvas | No | Yes — text, notes, links, strokes, Mermaid |
| AI edits broadcast to humans live | No | Yes — real-time, tagged ai:<name> |
| Works with any AI agent | No — proprietary if any | Yes — any MCP client, e.g. Claude |
| Signup required | Usually yes | No — anyone with the URL |
| Price | Freemium / paid | $0 forever |
Any MCP client. Point it at the public endpoint https://cnvs.app/mcp — Claude Desktop, Claude Code and any other Model Context Protocol-compatible agent can read the board and draw on it. There is no cnvs-specific plugin to install; MCP is the standard interface.
Yes. cnvs.app is free with no signup. Open a board, connect your AI agent to the MCP endpoint, and both of you draw on the same canvas — no account, no paywall.
The agent can read the full board state and write text nodes, sticky notes, clickable links, freehand strokes, images and Mermaid diagrams (flowcharts, sequence, class, ER, gantt, mindmaps). Every change is broadcast live to every human connected to the board.
Yes. The AI edits the same live board as people. Every item the agent adds or moves broadcasts over the real-time sync within seconds, tagged with an ai: author label so you can tell at a glance what the agent contributed.