Fortress

Name: Fortress
Author: tiliondev

by tiliondevversion 0.1.3i★ –iRuns on your computer

Registry nameio.github.tiliondev/fortress

Install

Overview

Description from the maker (original English)

Stealth browser for AI agents: fetch pages behind Cloudflare/DataDome/CAPTCHA, extract clean data.

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
You need to fill in: TILION_API_KEY

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).
You fill in yourself: TILION_MCP_PREWARM, TILION_MCP_HEADLESS, TILION_ALLOW_PRIVATE_EGRESS, TILION_BASE_URL, TILION_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

PyPIPython’s uv installed (for the uvx 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": {
    "fortress": {
      "command": "uvx",
      "args": [
        "tilion",
        "tilion-mcp"
      ],
      "env": {
        "TILION_MCP_PREWARM": "your-value",
        "TILION_MCP_HEADLESS": "your-value",
        "TILION_ALLOW_PRIVATE_EGRESS": "your-value",
        "TILION_BASE_URL": "your-value",
        "TILION_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add fortress --env TILION_MCP_PREWARM=your-value --env TILION_MCP_HEADLESS=your-value --env TILION_ALLOW_PRIVATE_EGRESS=your-value --env TILION_BASE_URL=your-value --env TILION_API_KEY=your-value -- uvx tilion tilion-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "fortress": {
      "command": "uvx",
      "args": [
        "tilion",
        "tilion-mcp"
      ],
      "env": {
        "TILION_MCP_PREWARM": "your-value",
        "TILION_MCP_HEADLESS": "your-value",
        "TILION_ALLOW_PRIVATE_EGRESS": "your-value",
        "TILION_BASE_URL": "your-value",
        "TILION_API_KEY": "your-value"
      }
    }
  }
}

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": {
    "fortress": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "tilion",
        "tilion-mcp"
      ],
      "env": {
        "TILION_MCP_PREWARM": "your-value",
        "TILION_MCP_HEADLESS": "your-value",
        "TILION_ALLOW_PRIVATE_EGRESS": "your-value",
        "TILION_BASE_URL": "your-value",
        "TILION_API_KEY": "your-value"
      }
    }
  }
}

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.

Values you fill in

TILION_MCP_PREWARM env
Boot the browser at startup so the first tool call is instant (default 1).
TILION_MCP_HEADLESS env
Set 0 to show a visible browser window (default 1).
TILION_ALLOW_PRIVATE_EGRESS env
Set 1 to allow tools to reach localhost / private IPs (SSRF guard off).
TILION_BASE_URL env
Run browsers on a hosted Tilion server instead of locally.
TILION_API_KEY secret env
Bearer key for the hosted Tilion server (cloud mode only).

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account tiliondev, 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 875 servers in this category
Published to the registry more recently than 20% of the other 875 servers in this category
Basic checks equal to or better than 100% of the other 875 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 Fortress 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?

You need to fill in: TILION_API_KEY

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 (0.1.3) 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 Python (uv) 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 16 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.

One browser engine to rule them all

Stealth Chromium engine · v3 (Chromium 153)

Fortress is a Chromium fork that stops scrapers and browser agents from getting blocked. Bot detectors flag automation by reading the browser fingerprint. Fortress corrects that fingerprint inside Chromium's C++, so the browser reads as an ordinary Chrome install. Point your existing Playwright or Puppeteer at it over CDP; nothing else in your code changes.

Headless, on datacenter IPs, with no proxies, Fortress loaded 86.4% of 92 protected sites. The next best stack (Camoufox) loaded 74.5%.

A site reads the fingerprint. Stock Chrome driven by a script fails CreepJS, BrowserScan, rebrowser and the WebGL check and is blocked; Fortress passes all four.

Real runs, fully headless

Unedited captures over CDP, with no stealth plugins. Reproduce with examples/scrape_demos.py .

Auto-pagination : 30 quotes across 3 pages.

Deep detail crawl : UPC · price · tax · stock · reviews.

Akamai, before and after , on aa.com from the same residential IP: a stock browser gets Access Denied , Fortress loads the page and Akamai issues its _abck sensor cookie. Same result on lowes.com, macys.com and kohls.com.

Quick start · Every session a distinct machine · The Fortress MCP · Works with your stack · Why patch the engine · How Fortress compares · Results · Configure the persona · Build & verify · Reference

Quick start

pip install tilion-fortress                       # or: npm install tilion-fortress

docker run --rm -p 9222:9222 tilion/fortress:latest # any OS, raw CDP on :9222

from tilion_fortress import Fortress

from playwright.sync_api import sync_playwright

with Fortress() as f: # launches the engine on a CDP endpoint with sync_playwright() as p: browser = p.chromium.connect_over_cdp(f.cdp_url) page = browser.new_page() page.goto("https://bot.sannysoft.com")

```js

import { Fortress } from "tilion-fortress"; import { chromium } from "playwright";

const f = await Fortress.launch(); const browser = await chromium.connectOverCDP(f.cdpUrl); const page = await browser.newPage(); await page.goto("https://browserscan.net");

The pip and npm SDKs download a prebuilt, SHA-256-verified binary (Linux x64, Windows x64). Portable tarballs, a .deb and the Windows .zip are on Releases.

Free for developers

v3 is free for developers, with no machine, session or concurrency caps. Activate once:

tilion activate      # sign in with GitHub, Google or email; key saved to ~/.tilion/license.jwt

The key is checked offline and Fortress never reports usage. Without activation it still runs, on the public first-generation engine. For CI, Docker and agents, set TILION_LICENSE_KEY= or run tilion activate --token ; one key covers a fleet. Production keys for larger organizations are at fortress.tilion.com/pricing.

The tilion CLI

Command	What it does
`tilion activate`	Unlock v3 with a one-click device flow (browser sign-in)
`tilion activate --headless`	Same flow, prints the URL and code (SSH or remote hosts)
`tilion activate --token`	Save a key with no browser (CI, agents)
`tilion license status [--json]`	Show the saved key's tier and expiry (`--json` for scripts)
`tilion license refresh`	Re-issue the key before it expires
`tilion license logout`	Remove the saved key and drop back to v1
`tilion get [platform]`	Download the build for this host. `tilion get list` shows all: `linux-x64`, `arm64`, `armhf`, `x86`, `win-x64`, `mac-arm64`, `mac-x64`
`tilion mcp`	Run the Fortress MCP server, stealth browsing as agent tools
`tilion` `[--port N]`	Launch the engine and print the CDP endpoint

Platforms

Platform	Package	Widevine	Status
Linux x64	portable tarball · Docker · pip / npm		shipping
Windows x64	portable `.zip` + `tillion.cmd` launcher		shipping
Linux arm64	portable tarball (Graviton, dense cloud fleets)	no	shipping
Linux x86 · armhf	portable tarball (32-bit x86 / ARM)	no	shipping
macOS (arm64 / x64)	`.app`, built from source		build from source

The arm64, x86 and armhf builds ship without the bundled Widevine CDM.

Set it up with an AI assistant

Every session a distinct machine

Each launch mints a fresh, internally coherent machine: GPU, screen, cores, timezone, language and fonts all agree. The persona reaches the renderer over IPC, so nothing shows on the command line and every BrowserContext can hold its own identity. Across 40 back-to-back launches of the same binary:

Across 40 launches	Distinct
Canvas fingerprint	40 / 40
Audio fingerprint	40 / 40
GPU (WebGL renderer)	25
Screen resolution	14
Timezone (geo-coherent with language)	23
Platform mix	31 Windows · 9 macOS

Reproduce with tools/gauntlet.py --runs 40 . A 64-clone fleet resumed from one snapshot comes up 48/48 distinct, because on_restore re-keys the whole persona with no relaunch.

The Fortress MCP

A Model Context Protocol server that gives Claude, Codex, Cursor, Windsurf, Cline or any MCP client a stealth browser as 29 tools, local and free. When a plain fetch is blocked, the agent calls a tool and gets the page.

<img src="docs/assets/fortress-mcp.gif" width="720" alt="Requests from coding agents hit a verify-you-are-human check and are blocked, then route through Fortress, pass the check a

Only the beginning is shown; read the rest in the repo

Fortress

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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

One browser engine to rule them all

Real runs, fully headless

Contents

Quick start

Free for developers

Platforms

Set it up with an AI assistant

Every session a distinct machine

The Fortress MCP