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. 629 installs a week from pypi. Last commit 12 Sep 2026.

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

Installs per day peak 457 · avg 54 · -42% w/w

a month agotoday

629

Installs / week

npm · b4n1-web

Stars

0 open issues

12 Sep 2026

Last commit

0 releases in 90 days

—

License

Python

What the code does

We read the source, 18 h ago · rules 3dff92dd89df

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/csharp/src/AgentBrowser.cs:419

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

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:51

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

Builds a file path from a variable sdks/javascript/src/binary.ts:32

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

Runs an external command sdks/python/b4n1web/__main__.py:103, sdks/python/b4n1web/browser.py:109, sdks/python/b4n1web/mcp.py:51

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

Builds a database query by concatenation sdks/python/b4n1web/mcp.py:119

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

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 -- npx -y b4n1-web

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

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

~/.codex/config.toml

[mcp_servers.b4n1web]
command = "npx"
args = ["-y", "b4n1-web"]

.cursor/mcp.json

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

.vscode/mcp.json

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

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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 npm package b4n1-web was installed 629 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 with the file path that client actually reads. It runs locally, so the command pulls b4n1-web straight from npm; nothing to host, nothing to sign up for.

How many people use B4n1Web?

The npm package b4n1-web was installed 629 times in the last week. Week over week that is -42%. 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?

We cannot say either way: written in Python and 1 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.