Fortress MCP Server

Fortress is a stealth Chromium engine that stops your scrapers and browser agents from getting blocked, with one line of code change. Bot detectors flag automation by reading the browser fingerprint; Fortress corrects that fingerprint inside Chromium's C++, so the browser presents as an ordinary Chrome install. Scrapers finish their runs, agents reach the pages they were sent to, and CreepJS, Sannysoft, BrowserScan…

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

VERIFIED ACTIVE

LAST COMMIT 2026-07-23 · ★ 463 · #60 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

NOASSERTION · Python servers · how we verify → /methodology

01 · Install Fortress

before you install - you'll need

CHROMIUM_VERSION

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add tiliondev-fortress -- uvx tilion

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "tiliondev-fortress": {
      "command": "uvx",
      "args": [
        "tilion"
      ]
    }
  }
}

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

repo age created 2026-07-02 - young repo, little track record yet

license no standard license detected - usage rights unclear; check the repo before commercial use

pypi package tilion - check the name against the project README before installing (PyPI has no namespace ownership)

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

03 · What Fortress can do

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

Latest releases

v150.0.7871.114 · 2026-07-15

Fortress on Chromium 150.0.7871.114 - built from the current stable Chrome version, so the engine reports the exact version the mass of real users run. Version-database detectors read it as genuine, up-to-date Chrome…

v149.0.7827.232 · 2026-07-04

Fortress on Chromium 149.0.7827.232 - current stable, the recommended stealth default (matches the Chrome version the mass of real users run; 151 is available for anyone wanting the newest engine). · Same 35-patch…

v151.0.7908.0 · 2026-07-02

Fortress 151.0.7908.0 - Engine Refresh · Released · The stealth Chromium engine, rebuilt. Every launch is a different, fully-coherent real-device persona - compiled into Chromium's C++, not bolted on in JavaScript.…

04 · Who maintains Fortress

fortress is maintained by tiliondev. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/tiliondev/fortress
website: https://tilion.dev/
category: browser automation - ranked #60 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 3 releases in the last 90 days (latest 2026-07-15)
registry: io.github.tiliondev/fortress (active, first published 2026-07-07)
packages: pypi:tilion

06 · Fortress FAQ

What is Fortress?

Is Fortress still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-23 and it shipped 3 releases in the last 90 days. We re-verify nightly.

How do I install Fortress?

Run `uvx tilion`. The README documents one environment variable (CHROMIUM_VERSION) to set first. You can also paste the ready-made client config above.

Does Fortress run locally?

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

07 · Alternatives to Fortress

Alternatives to Fortress

Maintained browser automation servers if Fortress isn't the fit.

Pairs well with

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

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