B4n1 Web MCP Server

Ultra-lightweight headless browser for AI agents. Single Rust binary · 4 language SDKs · 33 MCP tools. It runs locally over stdio via the published package.

People connecting browser automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 2 · #84 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install B4n1 Web

Claude Code

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

Claude Desktop / Cursor / VS Code - add to config

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

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

npm package b4n1-web - unscoped; check the name against the project README before installing

registry namespace io.github.B4N1-com is GitHub-verified and matches the repo owner

03 · What B4n1 Web can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.12.3 · 2026-08-07

v0.12.3 · Fixed · Statically linked (musl) binaries - no GLIBC dependency · Chrome 145 compatibility (chromiumoxide 0.9.1 resilient parsing) · Python screenshot parsing fix · Binaries (all musl/static) · | Platform |…

v0.9.11 · 2026-07-01

v0.9.11 - 2026-07-01 · Fixed · npm SDK: Removed broken postinstall script (not included in package files → npm install crash). Handled chmod in binary.ts at runtime instead. · npm SDK: Added import entry to…

v0.9.4 · 2026-06-10

Critical Fix · Replace dead web.b4n1.com in update/install URLs with raw GitHub content URL + direct download fallback in the binary itself · b4n1web update --install now downloads directly from GitHub Releases instead…

04 · Who maintains B4n1 Web

B4n1Web is maintained by b4n1-com. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository: github.com/b4n1-com/b4n1-web
category: browser automation - ranked #84 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 3 releases in the last 90 days (latest 2026-08-07)
registry: io.github.B4N1-com/b4n1web (active, first published 2026-07-04 · 2 versions)
packages: npm:b4n1-web · pypi:b4n1-web · nuget:B4n1Web

06 · B4n1 Web FAQ

What is B4n1 Web?

Ultra-lightweight headless browser for AI agents. Single Rust binary · 4 language SDKs · 33 MCP tools. It runs locally over stdio via the published package.

Is B4n1 Web still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22 and it shipped 3 releases in the last 90 days. We re-verify nightly.

How do I install B4n1 Web?

Run `npx -y b4n1-web`. You can also paste the ready-made client config above.

Does B4n1 Web run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to B4n1 Web

Alternatives to B4n1 Web

Maintained browser automation servers if B4n1 Web isn't the fit.

Pairs well with

Servers that cover what B4n1 Web doesn't - only shown when the pairing reason fits the companion.

More browser automation MCP servers · Camoufox MCP · Openevidence MCP · Presio · OneTool MCP · Fix This

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