bryg-mcp

BRYG

Your AI assistant's hands on the browser

An MCP server that lets AI assistants drive a real Chromium browser — navigate, click, type, read pages, run OCR, decode QR codes, and record network traffic. Like a human operator, on your machine.

🌐 Website · 📖 Docs · 🔒 Security · 🔑 Privacy

US$3 per device / month · 14-day free trial · macOS (Apple Silicon) & Windows · works with Google Chrome

Quick start

Add BRYG to your MCP client:

{
  "mcpServers": {
    "bryg": {
      "command": "npx",
      "args": ["-y", "bryg-mcp"]
    }
  }
}

Claude Code, in one line:

claude mcp add bryg -- npx -y bryg-mcp

Then activate your license key:

npx bryg-mcp activate <your-license-key>

No key yet? Start your 14-day free trial → — the key is emailed to you.

Until a key is activated, BRYG still starts and connects, but its tools stay inactive and answer with an activation reminder instead of doing work. Activate at any time; BRYG picks the key up within seconds, no restart needed.

What this package does

bryg-mcp is the official launcher. It carries no binary of its own: on first run it resolves the current release, downloads the BRYG engine for your platform (~70 MB, one time) into ~/.bryg/bin, verifies its SHA-256 checksum, and hands stdio over to it. Later runs start straight from the installed engine, so new BRYG releases arrive without you reinstalling this package.

Prefer a plain install without Node? Use the one-line installer instead:

# macOS
curl -fsSL https://bryg.pages.dev/install.sh | sh
# Windows (PowerShell)
irm https://bryg.pages.dev/install.ps1 | iex

Both paths share the same engine, the same ~/.bryg home, and the same license.

Why BRYG

• Sees pages like structure — accessibility-tree snapshots with stable element refs ([ref=N]); compact and reliable for an AI to act on, with coordinate fallback.
• OCR & QR built in — reads text from canvas, images, and games (multi-strategy OCR, any tesseract language) and decodes QR codes on the page.
• Network capture — record everything, keyword-filtered, or failures-only. Sensitive headers and password/token-like fields are masked by default.
• Credentials stay local — browser_login_fill types your credentials into the page without them ever entering the AI conversation.
• Headful by design — a dedicated browser instance you can watch and take over at any time.
• Zero telemetry — everything runs on your machine; the only network calls are license validation and an anonymous update check.

Tools (43)

Perception — browser_snapshot · browser_read · browser_screenshot · browser_ocr · browser_qr · browser_page_info Action — navigate · click · click by text · type · fill · replace · scroll · press keys · hover · drag · upload · select · clipboard, and more Observation — network_start · network_stop · network_status Targeting — xpath_by_text · xpath_at · xpath_for_ref

See the full tool reference.

CLI

Every argument is forwarded to the engine, so the whole CLI is available through npx:

Command	Description
npx bryg-mcp	Start the MCP server (stdio) — this is what your MCP client runs
npx bryg-mcp activate <key>	Activate your license on this machine
npx bryg-mcp deactivate	Release this machine's license seat
npx bryg-mcp license	Show local license status
npx bryg-mcp setup	Guided setup: OCR, PATH, MCP client registration
npx bryg-mcp browser launch [url] | stop	Manage the dedicated automation browser
npx bryg-mcp uninstall	Deactivate the seat, unregister, and remove ~/.bryg

Requirements

• Node.js 18+ (for this launcher only — the engine ships its own runtime)
• macOS on Apple Silicon, or Windows x64
• Google Chrome (or another Chromium-based browser) installed
• Optional: tesseract for OCR — npx bryg-mcp setup installs it for you

Need an Intel Mac or Linux build? It is available as custom work — email [e-mail].

Pricing

US$3 per device / month, with a 14-day free trial. One license key activates one device; add or remove devices at any time in the customer portal (billing, invoices, and cancellation live there too). See bryg.pages.dev for details.

Support

• 📖 Documentation — installation, CLI, configuration, all 43 tools, licensing FAQ, changelog
• 🐛 Issues

License

BRYG is commercial software provided under its End User License Agreement. The BRYG engine is not open source.