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b4n1-web

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🌐 B4n1Web — Agentic Browser Engine

Ultra-lightweight headless browser for AI agents.

License PyPI npm NuGet Maven Central Docs

PyPI Downloads/month npm Downloads/month NuGet Downloads GitHub Release GitHub Downloads

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

🌍 Languages / Idiomas / 语言

🇬🇧 English

🇪🇸 Español

🇫🇷 Français

🇩🇪 Deutsch

🇵🇹 Português

🇮🇹 Italiano

🇨🇳 简体中文

🇯🇵 日本語

🇰🇷 한국어

🇷🇺 Русский

🇸🇦 العربية

🇮🇳 हिन्दी

Related MCP server: Scout

🖥 Platform Support

8 pre-built binaries — works everywhere:

Platform

Architectures

Binary

Linux

x86_64, aarch64, i686

musl (static, no glibc)

macOS

x86_64, arm64

universal

Windows

x86_64, arm64, i686

MSVC

The SDKs bundle the correct binary automatically — no separate install needed.

Features

  • 33 MCP tools for AI agent integration

  • Single self-contained Rust binary ~11MB, no runtime dependencies

  • 4 language SDKs (Python, JS, Java, C#) with bundled binary

  • 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

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

Quick Start

Install the binary or use your preferred package manager:

# Binary (Linux, macOS, Windows — no dependencies)
curl -sL https://b4n1.com/install | bash

# Or via package managers
pip install b4n1-web
npm install b4n1-web
dotnet add package B4n1Web
# Java: add dependency from Maven Central

Basic usage:

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

0.12.3

Bundled (musl)

JavaScript/TypeScript

b4n1-web

0.12.3

Bundled (musl)

Java

com.b4n1:b4n1-web

0.12.3

Bundled (musl)

C# (.NET)

B4n1Web

0.12.3

Bundled (musl)

Documentation

Links

License

Apache License 2.0

This server cannot be installed

A
license - permissive license
Not graded
quality - not tested
A
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
2wRelease cycle
11Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

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