B4n1Web MCP Server

by b4n1-com Your server? Claim it

local only

B4n1Web runs on your own machine — the client starts it, so there is no endpoint to ping. 100 installs a week from npm. Last commit 27 Oct 2026.

Ultra-lightweight browser engine for AI agents. 33 MCP tools, 4 SDKs, cross-platform.

Installs per day peak 207 · avg 51 · -66% w/w

a month agotoday

100

Installs / week

pypi · b4n1-web

Stars

0 open issues

27 Oct 2026

Last commit

from GitHub

BUSL-1.1

License

Python

What the code does

We read the source, 5 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command sdks/java/src/main/java/com/b4n1/web/AgentBrowser.java:80

            ProcessBuilder pb = new ProcessBuilder(cmd);

Runs an external command sdks/javascript/src/binary.ts:80, sdks/javascript/src/browser.ts:52

    const version = execSync(`${binaryPath} --version`, { timeout: 5000 }).toString().trim();

Builds a file path from a variable sdks/javascript/src/binary.ts:32, sdks/go/b4n1web.go:182

    const bundled = path.join(__dirname, '..', 'bin', binName);

Runs an external command sdks/python/b4n1web/__main__.py:103, sdks/python/b4n1web/mcp.py:51, sdks/python/b4n1web/browser.py:110

                subprocess.run(["chmod", "+x", str(binary_path)], check=True)

Builds a database query by concatenation sdks/python/b4n1web/mcp.py:119, sdks/ruby/lib/b4n1web/page.rb:52

            import select
            deadline = time.monotonic() + self.timeout

Runs an external command sdks/php/src/B4n1Web/AgentBrowser.php:110

        $proc = proc_open($cmd, $spec, $pipes);

Runs an external command sdks/csharp/src/AgentBrowser.cs:427

                    StartInfo = new ProcessStartInfo("chmod", $"+x {tempBinary}")

Runs an external command sdks/ruby/lib/b4n1web/agent_browser.rb:83

        Open3.popen3(*argv, pgroup: true) do |pin, pout, perr, wait_thr|

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add b4n1web -- uvx b4n1-web

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "b4n1web": {
      "command": "uvx",
      "args": [
        "b4n1-web"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.b4n1web]
command = "uvx"
args = ["b4n1-web"]

.cursor/mcp.json

{
  "mcpServers": {
    "b4n1web": {
      "command": "uvx",
      "args": [
        "b4n1-web"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "b4n1web": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "b4n1-web"
      ]
    }
  }
}

Alternatives to B4n1Web

same job, measured the same way

Vibe Test — Browser Testing Agent

by aishwaryshrivastav

Code-aware browser testing agent — 14 Playwright tools for AI code editors via MCP

207 installs/wk local only

Ghostfox

by autokeren

Self-hosted stealth browser for AI agents: Firefox engine + Rust MCP runtime.

233 installs/wk local only

ChromeWalk

by chromewalk

Local browser automation for AI agents: real-browser fetch, capture, smoke tests, cross-engine QA.

local only

ChromeWalk

by gator8125

Local browser automation for AI agents: real-browser fetch, capture, smoke tests, cross-engine QA.

local only

Kitewright

by kitewright

Lightweight browser automation for AI agents: navigate, screenshot, extract, PDF. One small binary.

107 installs/wk local only

Safari DevTools MCP

by hayodev

MCP server for Safari DevTools — browser debugging and automation for AI coding agents

119 installs/wk local only

Selenium MCP

by gaforov

Selenium MCP server for AI agents — 41 browser automation tools with snapshots and sessions.

82 installs/wk local only

Banana Peel

by ygdotcom

OpenRouter for browser agents. One MCP to route browser tasks across 250+ runners.

local only

B4n1Web — questions

Answers built from our own checks of this server.

Why is there no uptime for B4n1Web?

B4n1Web runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package b4n1-web was installed 100 times last week.

How do I connect B4n1Web?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls b4n1-web straight from pypi; nothing to host, nothing to sign up for.

How many people use B4n1Web?

The pypi package b4n1-web was installed 100 times in the last week. Week over week that is -66%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is B4n1Web open source?

No, and the distinction matters: its licence is declared as BUSL-1.1. That makes it source-available — you can read the code, but the terms are the author's own, not one of the recognised open-source licences. Read them before you build on it.