B4n1Web — Agentic Browser Engine

Ultra-lightweight headless browser for AI agents.

📖 Full documentation: https://B4N1-com.github.io/b4n1-web/ Single Rust binary, 4 language SDKs. Navigate URLs, extract structured content (markdown, links, screenshots), and build autonomous agent workflows.

Quick Start

# Install the binary
curl -sL https://b4n1.com/install | 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

# Or with each SDK
npx b4n1-web mcp
uvx b4n1-web mcp

SDK Matrix

Language	Package	Version	Binary
Python	b4n1-web	0.12.2	Bundled (musl)
JavaScript/TypeScript	b4n1-web	0.12.2	Bundled (musl)
Java	com.b4n1:b4n1-web	0.12.2	Bundled (musl)
C# (.NET)	B4n1Web	0.12.2	Bundled (musl)

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

• 33 MCP tools for AI agent integration
• 4 language SDKs (Python, JS, Java, C#)
• Self-contained binary ~11MB, 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

Documentation

• SDK Docs — Full documentation
• Agent Reference — AI agent integration
• MCP Tools — MCP registry

Links

• Website: https://b4n1.com
• GitHub: https://github.com/B4N1-com/b4n1-web
• PyPI: https://pypi.org/project/b4n1-web
• npm: https://www.npmjs.com/package/b4n1-web
• NuGet: https://www.nuget.org/packages/B4n1Web
• Maven Central: https://central.sonatype.com/artifact/com.b4n1/b4n1-web

License

MIT