browsermcp/mcp

MCP Tools and AgentsFreeOpen Source

MCP server plus extension that automates the user's own local Chrome browser.

🛡️ AgentReady threat assessment

MAESTRO 7-layer threat model + OWASP AIVSS risk score for browsermcp/mcp, derived from its capabilities.

AIVSS 8.8 · High

Overview

Browser MCP pairs an MCP server with a Chrome extension so agents can control the user's real, logged-in browser tab. It reuses existing sessions and cookies to act as the user. This gives broad access to authenticated sites, making scope control and page-content trust critical security concerns.

Key features

Controls the user's real Chrome
Reuses existing logins and cookies
Local-first, no cloud
Click, type, navigate, read

Use cases

Automating authenticated web workflows
Local browser task automation