Diagram
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How to make and share diagrams with Zed

Zed (the fast editor with a built-in agent) can draw architecture diagrams, flowcharts, and sequence diagrams, but on its own they end up as text in the chat or a file only you can open. Connect Diagram once and every diagram Zed makes becomes a link you can share, which stays current as the diagram changes.

Set up Zed, freeHow Diagram works

1. Connect Diagram to Zed

In Zed, open Settings → AI → MCP Servers → Add Server → Add Remote Server, or add this to your settings file (zed: open settings file). A green dot means it’s connected:

{
  "context_servers": {
    "diagram": {
      "url": "https://diagram.la/mcp"
    }
  }
}

Sign in once: The first time, a browser tab opens: sign in with Google and click Allow.

2. Ask for a diagram

Open your repo in Zed and open the Agent Panel, then describe what you want in plain words. For example:

Zed draws it, keeps it in your repo’s diagrams/ folder, and gives you a link. You never have to mention Diagram again: it knows to use it.

3. Share the link

Paste it in Slack, a pull request, or a doc. Diagrams start private; add people to the project, share it with your team, or make one public. When it changes, ask Zed to update it: the link stays the same and every version is kept.

Questions

Is Diagram free to use with Zed?
Yes. Diagram is free for 5 projects, and there's nothing to install.
Who can see my diagrams?
Only you, until you share. Add people to a project, share it with your team through an org, or make a single diagram public so anyone with the link can open it.
What happens when the diagram changes?
Ask Zed to update it. The new version lands at the same link, and every earlier version is kept.
Does Zed need an API key?
No. Zed signs in to Diagram with your Google account in the browser.

Diagrams in other tools