Your AI Agent Can Now See Your Real Browser (And This Post Was Written With It)

You ship a fix. Your agent says "done, please verify." You alt-tab to Chrome, navigate to the page, log in, click around. Your agent just wrote the code — it could verify it too. It already has your browser open. It just couldn't see it.

Until now.

Real Browser MCP is an MCP server plus a Chrome extension that gives your AI agent control of your actual browser. Same tabs, same cookies, same logins. No headless browser. No replaying auth every time you want a quick "did the button work?" check.

Why existing tools fall short

Playwright MCP and Chrome DevTools MCP launch a new browser. Fresh profile, no state. For anything behind login — your app, internal tools, social accounts — you're stuck replaying the full flow. That's fine for isolated E2E tests. It's useless when you're iterating with an agent and just want it to look at the page you already have open.

Real Browser MCP is different. The extension runs inside the Chrome you're already using. The MCP server talks to it over a local WebSocket. Your agent can snapshot the page, click, type, scroll, take screenshots — all through the browser you're already using.

What you need

1. MCP server — one line in Cursor (or Claude Desktop, Windsurf): npx -y real-browser-mcp
2. Chrome extension — install from the Chrome Web Store

That's it. Green dot in the extension popup = connected. Your agent can now see your browser.

Dog food

I use this every day. And yes — this post was written and published using Real Browser MCP. The agent had the draft, navigated to dev.to/new, filled the form, and hit Publish. Same browser where I'm already logged in.

Real Browser MCP on GitHub · Chrome Web Store · MIT, open source.