Playwright Stealth Setup for x.ai

Installation

pip install playwright-stealth

Import Pattern (2026-08-14 verified)

from playwright_stealth import Stealth

# Correct usage:
stealth = Stealth()
await stealth.apply_stealth_async(page)

# WRONG - does NOT work:
# from playwright_stealth import stealth_async  # ImportError
# from playwright_stealth import stealth         # module, not callable
# await stealth(page)                            # TypeError

Why Stealth Is Needed

Without stealth, Cloudflare detects the automated browser and blocks the Clerk JS library from loading. The page HTML loads fine, but window.Clerk is undefined. The form submission triggers a 403 error from Cloudflare.

With stealth applied, the Clerk JS loads successfully and form submission works (when combined with residential proxy).

Stealth + Residential Proxy

Stealth alone may not be enough — Cloudflare also checks the IP. Always combine with:

bpproxy residential hardsession proxies (C:/Users/User/tmp/bpproxy_hardsession_pool.txt)
Filter for residential lines (port 1000), not datacenter (port 2000)

Launch Args

browser = await p.chromium.launch(
    headless=headless,
    proxy={"server": proxy_url},
    args=["--no-sandbox"]  # --disable-blink-features=AutomationControlled breaks stealth
)

Do NOT use --disable-blink-features=AutomationControlled with stealth — stealth handles this internally.

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