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Octo Browser MCP Server

Control antidetect browser profiles with AI through the Model Context Protocol

Installation · Quick Start · Tools Reference · Examples · Architecture

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Why This Exists

Managing hundreds of antidetect browser profiles manually is tedious. This MCP server bridges Octo Browser and AI assistants (Claude Code, Cursor, etc.), enabling natural language control over browser profiles and full browser automation through CDP.

Instead of clicking through UIs or writing scripts, just tell your AI:

"Start profile 5249_US, go to google.com, and take a screenshot"

The AI handles the rest -- finding the profile, launching it, connecting via CDP, navigating, and capturing the result.

Key Features

• Profile Lifecycle -- Start, stop, find, and manage Octo Browser profiles via Local and Cloud APIs
• Browser Automation -- Full Playwright-based control: navigate, click, type, scroll, screenshot
• Dual API Support -- Local API (port 58888) for profile control + Cloud API for search and management
• One-Time Profiles -- Temporary profiles that self-destruct after use (ideal for scraping)
• Multi-Tab Control -- Open, switch, and close browser tabs programmatically
• Remote/Docker Ready -- Automatic WebSocket URL rewriting for non-localhost setups
• Rate Limit Handling -- Built-in retry with exponential backoff for API throttling

Architecture

┌─────────────────────────────────────────────────────┐
│                   AI Assistant                       │
│              (Claude Code / Cursor)                  │
└──────────────────────┬──────────────────────────────┘
                       │ MCP Protocol (stdio)
┌──────────────────────▼──────────────────────────────┐
│              octo-mcp Server                         │
│  ┌─────────────┐ ┌──────────────┐ ┌──────────────┐  │
│  │   server.py  │ │ octo_client  │ │browser_manager│ │
│  │  34 MCP Tools│ │  Local+Cloud │ │  Playwright   │ │
│  └──────┬───────┘ └──────┬───────┘ └──────┬───────┘  │
└─────────┼────────────────┼────────────────┼──────────┘
          │                │                │
    ┌─────▼────┐   ┌──────▼──────┐  ┌──────▼──────┐
    │ MCP SDK  │   │  Octo APIs   │  │  CDP / WS   │
    │  stdio   │   │ :58888 Cloud │  │  Playwright │
    └──────────┘   └──────┬───────┘  └──────┬──────┘
                          │                 │
                   ┌──────▼─────────────────▼──────┐
                   │        Octo Browser           │
                   │   (antidetect Chromium)        │
                   └───────────────────────────────┘

Installation

From Source

git clone https://github.com/mazamakasa/octo-mcp.git
cd octo-mcp
pip install -e .
playwright install chromium

From PyPI (coming soon)

pip install octo-mcp
playwright install chromium

Prerequisites

• Python 3.10+
• Octo Browser installed and running (download)
• Playwright Chromium (installed via playwright install chromium)

Quick Start

1. Add to Claude Code

# Minimal setup (Local API only -- start/stop profiles by UUID)
claude mcp add octo-mcp -- octo-mcp

# Full setup (+ Cloud API for searching profiles by name)
claude mcp add octo-mcp \
  -e OCTO_USERNAME="your@email.com" \
  -e OCTO_PASSWORD="your_password" \
  -e OCTO_API_TOKEN="your_api_token" \
  -- octo-mcp

2. Or add to .claude/settings.json manually

{
  "mcpServers": {
    "octo-mcp": {
      "command": "octo-mcp",
      "env": {
        "OCTO_USERNAME": "your@email.com",
        "OCTO_PASSWORD": "your_password",
        "OCTO_API_TOKEN": "your_api_token"
      }
    }
  }
}

3. Restart Claude Code and verify

Ask Claude: "Check if Octo Browser is running" -- it will use octo_health_check.

Getting Your API Token

1. Open Octo Browser app
2. Go to Settings → API
3. Copy your API token

The API token is only needed for Cloud API operations (searching profiles by name, managing tags/proxies/extensions). Basic profile start/stop works without it.

Environment Variables

Variable	Description	Default
OCTO_HOST	Octo Browser host (for remote/Docker setups)	localhost
OCTO_PORT	Local API port	58888
OCTO_USERNAME	Account email for auto-login	--
OCTO_PASSWORD	Account password for auto-login	--
OCTO_API_TOKEN	Cloud API token (for search, tags, proxies)	--

Tools Reference (34 tools)

Profile Management (Local API)

Tool	Description
octo_health_check	Check Octo Browser API availability and version
octo_list_profiles	List all active (running) profiles with their WebSocket endpoints
octo_start_profile	Start a profile by UUID; returns ws_endpoint for CDP connection
octo_stop_profile	Gracefully or forcefully stop a running profile
octo_start_one_time_profile	Create a temporary profile (auto-deleted on stop); supports OS selection

Profile Search & Management (Cloud API)

Tool	Description
octo_find_profile_by_name	Find a profile by exact or partial name match
octo_start_profile_by_name	Find profile by name and start it (combines find + start)
octo_search_profiles	Search profiles by name, tags, status; supports sorting and pagination
octo_get_profile	Get full profile data: fingerprint, proxy, extensions, tags

Team Resources (Cloud API)

Tool	Description
octo_get_extensions	List all team browser extensions (name, version, UUID)
octo_delete_extensions	Delete team extensions by UUID
octo_get_tags	List all profile tags (name, color, UUID)
octo_get_proxies	List all saved proxies (type, host, port, UUID)

Browser Connection

Tool	Description
browser_connect	Connect to a running profile via CDP WebSocket endpoint
browser_disconnect	Disconnect from browser (does not stop the Octo profile)

Navigation

Tool	Description
browser_navigate	Navigate to URL with configurable wait strategy (load, domcontentloaded, networkidle)
browser_get_url	Get the current page URL
browser_go_back	Navigate back in history
browser_go_forward	Navigate forward in history
browser_reload	Reload the current page

Page Interaction

Tool	Description
browser_click	Click by CSS selector or (x, y) coordinates; supports right-click, double-click
browser_type	Type text into an element (via fill) or simulate keystrokes with delay
browser_press_key	Press a keyboard key (Enter, Tab, Escape, ArrowDown, etc.)
browser_scroll	Scroll page or specific element in any direction
browser_hover	Hover over an element (useful for dropdowns and tooltips)
browser_select	Select an option in a <select> dropdown

Information Extraction

Tool	Description
browser_screenshot	Capture screenshot of full page or specific element (returns PNG image)
browser_get_text	Extract text content from an element
browser_get_html	Get innerHTML or outerHTML of element, or full page HTML
browser_get_attribute	Get any attribute value from an element
browser_query_selector_all	Find all matching elements with their tag, text, class, bounds
browser_wait_for_selector	Wait for element to appear/disappear with configurable timeout

JavaScript Execution

Tool	Description
browser_evaluate	Execute arbitrary JavaScript and return the result

Tab Management

Tool	Description
browser_list_tabs	List all open tabs with title, URL, and active status
browser_switch_tab	Switch to a tab by index
browser_new_tab	Open a new tab, optionally navigating to a URL
browser_close_tab	Close the current tab

Usage Examples

Start a profile by name and automate

You: Start profile "work_US" and check my IP on whatismyipaddress.com

Claude: I'll start the profile, connect to it, and check your IP.

→ octo_start_profile_by_name(name="work_US")
  Profile 'work_US' (uuid: abc-123) started. ws_endpoint: ws://localhost:52341/...

→ browser_connect(ws_endpoint="ws://localhost:52341/...")
  Connected to browser.

→ browser_navigate(url="https://whatismyipaddress.com")
  Navigated to https://whatismyipaddress.com

→ browser_screenshot()
  [Screenshot showing IP address]

Your IP is 192.168.x.x (US location, matching profile proxy).

Scrape with a temporary profile

You: Create a temp profile and scrape the title from news.ycombinator.com

Claude:
→ octo_start_one_time_profile(os="win")
  Temporary profile created. UUID: tmp-456. ws_endpoint: ws://...

→ browser_connect(ws_endpoint="ws://...")
→ browser_navigate(url="https://news.ycombinator.com")
→ browser_evaluate(script="document.title")
  Result: "Hacker News"

→ octo_stop_profile(uuid="tmp-456")
  Profile stopped and deleted.

The page title is "Hacker News".

Manage profiles in bulk

You: Find all profiles tagged "ads" and list them

Claude:
→ octo_search_profiles(tags=["ads"], limit=50)
  Found 12 profiles:
  - ads_US_01 (UUID: ...)
  - ads_UK_02 (UUID: ...)
  ...

Check fingerprint configuration

You: Show me the fingerprint details for profile "5249_US"

Claude:
→ octo_find_profile_by_name(name="5249_US")
→ octo_get_profile(uuid="found-uuid")

  Profile: 5249_US
  Fingerprint:
    OS: win
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)...
    Screen: 1920x1080
  Proxy: socks5://proxy.example.com:1080
  Extensions (2):
    - uBlock Origin v1.55
    - EditThisCookie v1.6

Remote / Docker Setup

When Octo Browser runs on a different machine, set OCTO_HOST:

claude mcp add octo-mcp \
  -e OCTO_HOST="192.168.1.100" \
  -e OCTO_USERNAME="your@email.com" \
  -e OCTO_PASSWORD="your_password" \
  -- octo-mcp

The server automatically rewrites WebSocket URLs from 127.0.0.1/localhost to your configured host, so CDP connections work seamlessly across networks.

Requirements for remote setup:

• Port 58888 (Local API) must be accessible
• CDP debug ports (random, per-profile) must be accessible
• Consider using SSH tunnel for security

Troubleshooting

Problem	Solution
"Octo Browser API unavailable"	Make sure Octo Browser is running. The Local API starts with the app.
"OCTO_API_TOKEN is not set"	Add your API token or use octo_start_profile with UUID directly.
"Profile not found"	Profile names are case-sensitive. Use octo_search_profiles to browse.
WebSocket connection fails	Check that OCTO_HOST is correct and CDP ports are accessible.
"Browser not connected"	Call browser_connect with the ws_endpoint from profile start.

Development

git clone https://github.com/mazamakasa/octo-mcp.git
cd octo-mcp
python -m venv .venv
source .venv/bin/activate
pip install -e ".[dev]"

# Lint & format
ruff check src/
ruff format src/

# Run tests
pytest

Tech Stack

• MCP SDK -- Model Context Protocol server framework
• Playwright -- Browser automation via CDP (Chrome DevTools Protocol)
• httpx -- Async HTTP client for Octo Browser APIs
• Hatchling -- Modern Python build system

License

MIT License -- see LICENSE for details.

Author

Maksym Babenko -- GitHub · Telegram

Links

• Octo Browser -- Antidetect browser for multi-accounting
• Octo Browser API Docs
• Model Context Protocol -- Open protocol for AI-tool integration
• Claude Code