Diagram MCP Server: Install & Setup

Install Diagram in Claude Code

Claude Code

claude mcp add --transport http diagram https://diagram.la/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

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

Frequently asked questions

What does the Diagram MCP server do?

Saves the diagrams your AI draws and gives you a link to share. Edits update the same link.

Is the Diagram MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Diagram run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Diagram to Claude Code?

Run: claude mcp add --transport http diagram https://diagram.la/mcp

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