bb-browser

bb-browser lets AI agents work through your local Chrome browser using the website accounts you're already signed into. It's for people building agents that need to research across websites or interact with authenticated pages without a separate API integration for each service. The project is open source under the MIT license.

Its main distinction is access to your existing browser session. Website adapters use that session to retrieve information and return structured JSON, so an agent can combine results from different sites. Supported tasks include searching Twitter/X and Reddit, reading GitHub issues, finding arXiv papers, retrieving YouTube transcripts and checking stock information through Yahoo Finance or Eastmoney. Community adapters live in the bb-sites project, and developers can add adapters for other websites.

The same tool also handles general browser automation: agents can open pages, inspect their accessible elements, click controls and fill forms. Screenshots, authenticated requests and network capture support tasks that need more than a site's predefined adapter. It supports concurrent work across browser tabs.

Agents can connect through a command-line interface or an MCP server, including integrations with Claude Code and Cursor. The browser connection runs locally, while requests to online websites use those services and your existing login state. OpenClaw can use its built-in browser directly, without a separate Chrome extension or daemon.