jev-browser

by Ying-Kai-Liao · Browser Automation · ★ 126

jev-browser is an MCP server by Ying-Kai-Liao. Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server. It has 126 GitHub stars and ranks #129 of 591 in Browser Automation by stars.

Category: Browser Automation
Author: Ying-Kai-Liao
GitHub stars: 126
This week: Tracking since 18 Oct 2026
Weekly downloads: 730
Language: JavaScript
License: MIT (open source)
Last update: 2026-10-17 (7 days ago)
Links: Source npm

browser-automation
llm-agents
mcp
mcp-server
playwright

How to install jev-browser

jev-browser is published on npm as jev-browser, and it depends on @modelcontextprotocol/sdk. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add jev-browser -- npx -y jev-browser

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "jev-browser": {
      "command": "npx",
      "args": [
        "-y",
        "jev-browser"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm jev-browser and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

MCP servers for Playwright193

Maintain this project? Get it featured ($99/mo, pinned at the top of Browser Automation) or see what featuring includes.

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Frequently asked questions

What is jev-browser?

jev-browser is an MCP server by Ying-Kai-Liao in the Browser Automation category. Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server. It has 126 GitHub stars and ranks #129 of 591 in Browser Automation by stars. It is written in JavaScript. It is licensed under MIT. It was last updated 7 days ago.

Is jev-browser free and open source?

Yes. jev-browser is published under the MIT license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

What are the alternatives to jev-browser?

Other Browser Automation projects on MCP Harbor include browser-use, chrome-devtools-mcp, payload. Each alternative links to its own page with stars, license and recent activity. The Browser Automation category ranks all 591 by stars, and you can re-sort it by growth this week.

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.