invisible-playwright-mcp
A stealth Firefox browser, exposed as an MCP server, so any AI agent can browse and act on real websites without being blocked by anti-bot systems.
It wraps invisible-playwright (a real Firefox patched at the C++ source for stealth) and hands your MCP client the usual browser tools: navigate, click, type, read, screenshot. The browser is always launched by the stealth engine, so the fingerprint is set inside the engine, not bolted on.
Install (Claude Code)
One line:
claude mcp add stealth --env STEALTHFOX_PROXY=http://user:pass@host:port -- uvx invisible-playwright-mcp
Or add it to any MCP client via a config block (Claude Code, Cursor, Claude Desktop):
{
"mcpServers": {
"stealth": {
"command": "uvx",
"args": ["invisible-playwright-mcp"],
"env": { "STEALTHFOX_PROXY": "http://user:pass@host:port" }
}
}
}
uvx downloads and runs it in one step; no manual install. The stealth Firefox engine is fetched automatically on first use.
Configuration (environment variables)
| Variable | Meaning |
|---|---|
STEALTHFOX_PROXY |
Your proxy URL (http://…, https://… or socks5://…). Bring your own. With it set, the session's timezone, locale and egress are derived from the proxy automatically. |
STEALTHFOX_SEED |
Integer seed for a deterministic fingerprint (same seed, same identity). |
STEALTHFOX_PROFILE_DIR |
A directory for a persistent profile, so logins survive across runs. |
STEALTHFOX_BINARY |
Path to a specific engine binary (otherwise fetched automatically). |
STEALTHFOX_HEADLESS |
0 to run headed; headless by default. |
Tools
session_new_page, session_list_pages, session_select_page, session_close_page, browser_navigate, browser_read_text, browser_snapshot, browser_click, browser_type, browser_press_key, browser_evaluate, browser_wait_for, browser_take_screenshot.
Tool names mirror the Microsoft Playwright MCP, so prompts written for it work here too.
Notes
- Bring your own proxy. The engine does the stealth; a residential proxy gives you the matching IP and geography. Without one it still runs, but the exit is your own address.
- This is a browser, not a captcha solver. It does not solve or bypass challenges for you; it makes an ordinary Firefox session look like a real one.
License
See the engine project, invisible-playwright.
1 maintainer
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