Lumenbase for Claude

Developer guide

Use Lumenbase in Claude Code

Add the Lumenbase MCP server to Claude Code, sign in once, and ask about deals, contacts and email without leaving the terminal.

Elsa Lindqvist
Elsa L.
Editor

How do you add Lumenbase to Claude Code?

Run claude mcp add --transport http lumenbase https://lumenbase.io/api/mcp, then type /mcp inside Claude Code and follow the sign-in in your browser. Claude Code stores the token and refreshes it for you.

Add the server

Add Lumenbase
claude mcp add --transport http lumenbase https://lumenbase.io/api/mcp

  1. Run the command

    In your project folder, run the command above. It adds Lumenbase for this project only.

  2. Sign in

    In Claude Code, type /mcp, pick lumenbase and follow the steps in your browser. From your shell, claude mcp login lumenbase does the same.

  3. Check it

    Ask: List my open deals. Do not change anything.

Choose where it is available

Add it for every project
claude mcp add --transport http lumenbase --scope user https://lumenbase.io/api/mcp

Local

The default. Only you, in the current project.

Project

Writes .mcp.json to the project, so teammates get it through version control. Each person still signs in as themselves.

User

Only you, in every project on this machine.

What to ask

  • Which of my deals have had no contact for two weeks? Draft a follow-up for the top three. Do not send.
  • Prepare me for my next meeting: who is coming, what we last discussed and what we promised.
  • Log this note on the Acme deal and create a task to send the proposal on Friday.
  • Which past clients have we not spoken to in six months?
Claude workflows

Common questions

No. The server uses OAuth. Claude Code opens the sign-in in your browser and keeps the token for you.

Yes. Add it with --scope project to write .mcp.json to the repository. Claude Code asks each person before it uses a project server, and each person signs in with their own Lumenbase account.

Type /mcp, pick lumenbase and choose Clear authentication. You can also revoke the app in Lumenbase Settings.

Sources and scope

Command syntax checked against the Claude Code documentation on 13 November 2026.

Claude is a trademark of Anthropic. ChatGPT is a trademark of OpenAI. Cursor is a trademark of Anysphere. Lumenbase is not affiliated with, sponsored by or endorsed by these companies.

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