Chromium Sync

MCP server for accessing browser data (tabs, history, bookmarks) from Chromium-based browsers.

Supports Brave, Chrome, and Chromium.

Installation

# Using uvx (recommended)
uvx chromium-sync-mcp

# Or install with pip
pip install chromium-sync-mcp

System Requirements

Requires the LevelDB library:

# Ubuntu/Debian
sudo apt-get install libleveldb-dev

# macOS
brew install leveldb

# Fedora
sudo dnf install leveldb-devel

Claude Code Configuration

Add to your Claude Code MCP settings:

{
  "mcpServers": {
    "chromium-sync": {
      "command": "uvx",
      "args": ["chromium-sync-mcp"]
    }
  }
}

Tools

Tool	Description
get_tabs_all_devices	Get open tabs from all synced devices
get_tabs_local	Get open tabs from the local browser session
get_history	Search browsing history with optional filters
get_bookmarks	Get bookmarks, optionally filtered by folder
search_bookmarks	Search bookmarks by title or URL
select_browser	Select which browser to use (when multiple installed)
set_profile_path	Manually set the browser profile path
check_sync_status	Check what data is accessible (for debugging)

get_history

Returns a JSON array of history entries. Supports substring search, regex patterns, and date filtering.

Parameters:

Parameter	Type	Description
query	string	Substring match against URL and title (case-insensitive). Cannot be used with pattern.
pattern	string	Regex match against URL and title. Cannot be used with query.
limit	integer	Maximum results to return. Default: 100
days_back	integer	Only return entries from the last N days.
after	string	ISO date or datetime. Only entries on or after this time.
before	string	ISO date or datetime. Only entries before this time.

Date formats: YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS

Example response:

[
  {
    "url": "https://github.com/anthropics/claude-code",
    "title": "GitHub - anthropics/claude-code",
    "visit_time": "2026-01-11T14:30:00",
    "visit_count": 5
  }
]

Configuration

Auto-detection

The server automatically detects installed Chromium-based browsers. If multiple browsers are found, you'll be prompted to select one.

Environment Variable

Override auto-detection by setting CHROMIUM_PROFILE_PATH:

export CHROMIUM_PROFILE_PATH=~/.config/google-chrome/Default

Saved Preference

When prompted to select a browser, use select_browser with save_default: true to save your preference to ~/.config/chromium-sync/profile.

Supported Browsers

Browser	Linux	macOS	Windows
Brave	✓	✓	✓
Chrome	✓	✓	✓
Chromium	✓	✓	✓

How It Works

This server reads directly from your browser's local profile files:

• History: SQLite database
• Bookmarks: JSON file
• Synced Tabs: LevelDB (contains tabs from all your synced devices)

No authentication or network requests required.

Headless Setup (Sync Passphrase Entry)

If you're running on a headless server and need to enter your Chrome sync passphrase, use the chromium-sync-setup command. It launches a browser in a virtual display and provides a secure web URL for remote access.

This is a one-time setup per machine. Once you've entered your passphrase and sync is established, you won't need to run this again.

# If you installed via uvx (recommended)
uvx --with chromium-sync-mcp[setup] --from chromium-sync-mcp chromium-sync-setup

# If you installed via pip
pip install chromium-sync-mcp[setup]
chromium-sync-setup

What it does:

1. Starts a virtual X display (Xvnc or Xvfb)
2. Launches your browser to the sync settings page
3. Provides a secure HTTPS URL via Cloudflare tunnel

System requirements (one of):

• TigerVNC: sudo apt install tigervnc-standalone-server
• Or Xvfb + x11vnc: sudo apt install xvfb x11vnc

The script auto-downloads cloudflared and noVNC, so those don't need manual installation.

License

Apache 2.0