B4n1Web

Name: B4n1Web
Author: B4N1-com

by B4N1-comversion 0.12.2i★ –iRuns on your computer

Registry nameio.github.B4N1-com/b4n1web

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Web & browsers

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

claude mcp add b4n1web -- npx -y b4n1-web

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account B4N1-com, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Web & browsersi

More stars than 0% of the other 879 servers in this category
Published to the registry more recently than 19% of the other 879 servers in this category
Basic checks equal to or better than 100% of the other 879 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is B4n1Web safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.12.2) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js, Python (uv), .NET on your computer.

What can I use instead?

In the same category: Browser Use, Chrome DevTools MCP, MCP Server Browser

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Browser Use

by browser-use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

Computer or cloud★ 120,087MITUpdated 17 days ago

Install

Chrome DevTools MCP

by ChromeDevTools

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

Runs on your computer★ 54,821Apache-2.0Updated 15 days ago

Install

MCP Server Browser

by bytedance

MCP server for browser use access

Runs on your computer★ 39,550Apache-2.0Updated 14 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

🌐 B4n1Web — Agentic Browser Engine

Ultra-lightweight headless browser for AI agents.

Single Rust binary · 4 language SDKs · 33 MCP tools. Navigate URLs, extract structured content (markdown, links, screenshots), and build autonomous agent workflows.

📖 Full documentation: https://B4N1-com.github.io/b4n1-web/book/

🌍 Languages / Idiomas / 语言


🇬🇧 English	🇪🇸 Español	🇫🇷 Français	🇩🇪 Deutsch	🇵🇹 Português	🇮🇹 Italiano
🇨🇳 简体中文	🇯🇵 日本語	🇰🇷 한국어	🇷🇺 Русский	🇸🇦 العربية	🇮🇳 हिन्दी

🖥 Platform Support

8 pre-compiled binaries — works everywhere:

Platform	Architectures	Binary
Linux	x86_64, aarch64, i686	`musl` (static, no glibc)
macOS	x86_64, arm64	`universal`
Windows	x86_64, arm64	`MSVC`

Quick Start

# Install the binary

curl -sL https://raw.githubusercontent.com/B4N1-com/b4n1-web/master/scripts/install.sh | bash

Or use your preferred package manager

pip install b4n1-web npm install b4n1-web dotnet add package B4n1Web

Java: add dependency from Maven Central

from b4n1web import AgentBrowser

browser = AgentBrowser() page = browser.goto("https://example.com") print(page.markdown) browser.close()

MCP Server

# stdio mode (default)

b4n1web mcp npx b4n1-web mcp uvx b4n1-web mcp

SDK Matrix

Language	Package	Version	Binary
Python	`b4n1-web`	0.16.0	Bundled (musl)
JavaScript/TypeScript	`b4n1-web`	0.16.0	Bundled (musl)
Java	`com.b4n1:b4n1-web`	0.16.0	Bundled (musl)
C# (.NET)	`B4n1Web`	0.16.0	Bundled (musl)
Ruby	`b4n1-web`	0.16.0	Resolver (env/system/PATH)
PHP	`b4n1/b4n1-web`	0.16.0	Resolver (env/system/PATH)
Go	`b4n1-web/sdks/go`	0.16.0	Resolver (env/system/PATH)

Capability parity

Every method each SDK exposes is tested (see coverage). Surface differs by design: Python additionally ships a full MCP client (b4n1web.mcp), so it covers the whole tool surface; JS/C#/Java/Ruby/PHP/Go wrap the CLI binary (core flows). Cells below are measured against each SDK's actual source (b4n1-web 0.16.0), not aspirational: explicit rounding — ✓ implemented · · not implemented · mcp available through the bundled MCP server.

Capability	Python	JS/TS	C#	Java	Ruby	PHP	Go
goto (light / js / render) + page screenshot	✓	✓	✓	✓	✓	✓	✓
wait (`--wait-for` / waitForSelector)	✓	✓	✓	✓	✓	✓	✓
click / typeText	✓	✓	✓	✓	·	·	·
links (Page) + find-links-by-text	✓	✓	✓	✓	✓	✓	✓
getLinks (browser) / one-shot fetch	mcp	✓	✓	·	·	·	·
evaluate (JS execution)	✓	·	·	·	✓	✓	✓
viewport / user-agent / emulate-device	✓	✓	·	·	·	·	·
upload / download / frames / cookies	✓	·	·	·	·	·	·
binary version query (bundle == SDK)	✓	✓	✓	✓	·	·	·

Full parity = one MCP client per SDK (JS/CS/Java) — tracked as tasks; the Ruby/PHP/Go interaction gaps (click/type, device emulation, file transfer, cookies/frames) are their own parity tasks.

Browser Modes

Mode	Description	RAM	Startup
Light	HTTP fetch + HTML parsing	~15MB	Instant
JS	Light + JavaScript extraction	~15MB	Instant
Render	Full Chromium + screenshots	~100MB	~2s

Features

35 MCP tools for AI agent integration
4 language SDKs (Python, JS, Java, C#) with bundled binary
Self-contained binary ~12MB, no dependencies
Static linking (musl) — works on any Linux, no glibc required
Three modes: Light (instant), JS (scripts), Render (Chromium)
Security shield: domain filtering, safe browsing
Network interception: block resources, mock responses
MCP Server: stdio transport, no port needed
Link extraction: get_links MCP tools + getLinks() in every SDK (one-shot fetch without a browser instance)
--licenses flag: prints the bundled license + third-party notices, no key required

Documentation

📖 Full documentation — mdBook
Agent Reference — AI agent integration
MCP Tools — MCP registry

License & Commercial Terms

Binaries & SDK Tools: Provided under the Business Source License 1.1 (BUSL-1.1).
Free Tier: 100% free for development, evaluation, testing, personal projects, and startups with gross annual revenue < $100,000 USD.
Mandatory Enterprise B2B License: Required for government agencies, public bidding projects, and enterprises with gross annual revenue >= $100,000 USD.

For Enterprise B2B licensing inquiries, visit https://b4n1.com/licensing or email b4n1@b4n1.com.

B4n1Web

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Web & browsersi

Common questions

Alternatives

Browser Use

Chrome DevTools MCP

MCP Server Browser

README from the maker

🌐 B4n1Web — Agentic Browser Engine

🌍 Languages / Idiomas / 语言

🖥 Platform Support

Quick Start

Or use your preferred package manager

Java: add dependency from Maven Central

MCP Server

SDK Matrix

Capability parity

Browser Modes

Features

Documentation

Links

License & Commercial Terms