Gantt MCP
One command

Gantt charts in Claude Code

CLI — one command, then /mcp to sign in

Add the server once and Claude Code can schedule a whole project for you — dependencies, working calendars, resource levelling and critical path — then hand back a shareable chart plus PNG, SVG and CSV exports.

Set it up in 5 steps

  1. Add the server with the HTTP transport. Local scope (this project, private to you) is the default; the name goes before the URL.

    bash
    claude mcp add --transport http gantt https://gantt.nare.li/api/mcp

  2. Or use --scope project (-s project) to share it with your team, or --scope user for all your projects. Precedence when the same name is defined more than once: local > project > user.

    bash
    claude mcp add --transport http --scope project gantt https://gantt.nare.li/api/mcp
# or: claude mcp add --transport http --scope user gantt https://gantt.nare.li/api/mcp

  3. Project scope writes this file at the repo root; commit it so teammates get the same server. The "type" key is required — an entry with a url and no type is read as stdio and skipped.

    .mcp.json (project root)
    {
  "mcpServers": {
    "gantt": {
      "type": "http",
      "url": "https://gantt.nare.li/api/mcp"
    }
  }
}

  4. claude mcp list will first show "! Needs authentication". Start Claude Code, run /mcp, select gantt, press Enter and choose Authenticate, then approve in the browser. From your shell, claude mcp login gantt does the same (v2.1.186+).

    text
    /mcp

  5. Confirm it reports connected.

    bash
    claude mcp list

A non-interactive session (claude -p, the Agent SDK, cloud runs) cannot open the browser, so authenticate once from an interactive session first.

Official documentation ↗

Once it is connected

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