SeleniumBase MCP: MCP server, setup and security

What SeleniumBase MCP does

According to its repository: “Browser automation, testing and bot-detection bypass using SeleniumBase CDP Mode with Chromium, including click-based CAPTCHA solving.”

The Model Context Protocol (MCP) is a standard plug between an AI agent and an outside service: once the server is connected, its tools show up in the agent, which decides when to call them. SeleniumBase MCP is listed under Browser automation, a category of 109 servers in the directory, where it ranks #8 by stars.

Topics declared by the repository: python, selenium, selenium-python, e2e-testing, seleniumbase, web-automation.

Installing and connecting SeleniumBase MCP

Distribution modes declared in the official MCP registry:

• PyPI package (Python, started with uvx or pip)

It works with any MCP-compatible client (Claude Desktop, Claude Code, Cursor, VS Code, Codex and most recent agents). You add one entry to the client's MCP configuration: server name, start command or URL, environment variables. Project language: Python. Listed systems: macOS, Windows, Linux.

Security: what to check

Connecting an MCP server means installing software that talks straight to your agent: it runs with your rights and the model trusts its tool descriptions. The risk therefore depends on what it can touch and how far its code can be trusted.

Points found for SeleniumBase MCP:

• System access: the Browser automation category gives the agent control over files, a terminal, code or a browser. A booby-trapped instruction in content the agent reads (prompt injection) can then turn into an action.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on March 4, 2014, the seleniumbase/SeleniumBase repository has 13,140 stars and 1,605 forks, with 11 open issues. It is one of the most starred servers in the directory. It received changes this month. Version published in the registry: 4.56.3 (October 21, 2026).

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.