Guide

Connect 3rdTab to OpenClaw

Add 3rdTab as an MCP server in OpenClaw, approve access to your tabs, and verify the connection.

  • OpenClaw
  • MCP
  • Setup

Connect 3rdTab to OpenClaw when you want the bot to work with your saved tabs. OpenClaw uses the Model Context Protocol (MCP) connection to reach 3rdTab securely.

Before you start

You need OpenClaw installed and available in your terminal. You also need a 3rdTab account that you can sign in to in a browser. The connection asks for permission to read and write tabs.

Add 3rdTab

Run this command in your terminal:

openclaw mcp add 3rdtab \
  --url https://3rdtab.com/mcp \
  --transport streamable-http \
  --auth oauth \
  --oauth-scope "tabs:read tabs:write"

This registers the 3rdTab MCP server and tells OpenClaw to use OAuth, the browser-based sign-in flow that lets you approve access without giving OpenClaw your password.

Sign in and approve access

Start the sign-in flow:

openclaw mcp login 3rdtab

OpenClaw will give you a browser link. Sign in to 3rdTab if prompted, then review and approve the tab permissions. Return to the terminal when the browser confirms the authorization.

The requested scopes are tabs:read and tabs:write. They let OpenClaw view and create or update tabs through 3rdTab. twitter:post is a separate permission. It is not requested for ordinary tab access.

Verify the connection

Probe the configured server:

openclaw mcp doctor 3rdtab --probe

When the connection is ready, the probe should report that the 3rdTab server is reachable and authenticated. You can then use OpenClaw features that work with your 3rdTab tabs.

If something does not work

  • If openclaw is not found, install OpenClaw or reopen the terminal where it is available.
  • If the browser sign-in flow does not finish, run openclaw mcp login 3rdtab again and complete the approval in the same browser session.
  • If the probe reports an authentication problem, sign in again. The authorization may have been cancelled or expired.
  • If the server cannot be reached, check that the URL is exactly https://3rdtab.com/mcp and that your network can reach 3rdTab.

Run the doctor command again after making a change. Its result is the quickest check that OpenClaw can use 3rdTab.