Abrasio SDK

Undetected web scraping SDK inspired on Patchright with human-like behavior simulation and optional cloud browser support.

Features

Feature	Description
Undetected	Patchright bypasses Runtime.enable and CDP detection
Free Local Mode	Run on your machine with anti-detection patches
Cloud Mode	Real fingerprints(paid)
Human Behavior	Bezier mouse movements, natural typing, smooth scrolling
TLS Fingerprinting	curl_cffi for JA3/JA4 TLS fingerprint matching
Fingerprint Config	Control WebGL, WebRTC, canvas/audio noise per session
Playwright API	Same API you already know

Anti-Detection Status

Technique	Status	Notes
Patchright (CDP leak)	Implemented	Protocol-level, not JS patches
navigator.webdriver	Implemented	--disable-blink-features=AutomationControlled
Headless User-Agent fix	Implemented	Auto-removes "HeadlessChrome" in headless mode
Human behavior (Bezier)	Implemented	Mouse, typing, scrolling
TLS fingerprinting (JA3/JA4)	Implemented	via curl_cffi for HTTP requests
Canvas noise	Implemented	Optional via FingerprintConfig(canvas_noise=True)
Audio noise	Implemented	Optional via FingerprintConfig(audio_noise=True)
WebRTC IP leak protection	Implemented	Via FingerprintConfig(webrtc=False)
WebGL control	Implemented	Enabled by default, disable via config
Timezone/Locale consistency	Auto-validated	Auto-configures from region or IP
Retry on rate limit	Implemented	Exponential backoff with Retry-After

Table of Contents

• Installation
• Quick Start
• FingerprintConfig
• Human-Like Behavior
• TLS Fingerprinting (HTTP)
• Configuration
• Cloud Mode
• Error Handling
• API Reference
• Best Practices

Installation

# Install SDK
pip install abrasio

# Install real Chrome (NOT Chromium) for maximum stealth
patchright install chrome

# Optional: TLS fingerprinting for HTTP requests
pip install abrasio[tls]

# Optional: fingerprint generation utilities
pip install abrasio[fingerprint]

# Install everything
pip install abrasio[all]

Requirements

• Python 3.8+
• Chrome browser (installed via patchright install chrome)

Quick Start

Local Mode (Free)

import asyncio
from abrasio import Abrasio

async def main():
    async with Abrasio(headless=False) as browser:
        page = await browser.new_page()
        await page.goto("https://example.com")
        print(await page.title())

asyncio.run(main())

Cloud Mode (Paid)

import asyncio
from abrasio import Abrasio

async def main():
    async with Abrasio(
        api_key="sk_live_xxx",
        region="BR",
        url="https://example.com.br",
    ) as browser:
        page = await browser.new_page()
        await page.goto("https://example.com.br")
        print(await page.title())

asyncio.run(main())

Synchronous API

from abrasio.sync_api import Abrasio

with Abrasio(headless=False) as browser:
    page = browser.new_page()
    page.goto("https://example.com")
    print(page.title())

FingerprintConfig

Control browser fingerprint protections in local mode only. In cloud mode, the cloud browser handles all fingerprinting automatically.

from abrasio import Abrasio, FingerprintConfig

async with Abrasio(
    headless=False,
    fingerprint=FingerprintConfig(
        webgl=True,          # Keep WebGL enabled (default). False blocks it.
        webrtc=False,        # Block WebRTC IP leak (recommended with proxy)
        canvas_noise=True,   # Add noise to canvas fingerprint
        audio_noise=True,    # Add noise to audio fingerprint
    ),
) as browser:
    page = await browser.new_page()
    await page.goto("https://example.com")

Option	Default	Description
webgl	True	Enable WebGL APIs. Disabling is a strong bot signal.
webrtc	True	Enable WebRTC. Set False with proxy to prevent real IP leak.
canvas_noise	False	Add imperceptible noise to canvas reads. Randomizes fingerprint.
audio_noise	False	Add noise to AudioContext reads. Randomizes fingerprint.

Cloud mode: FingerprintConfig is completely ignored. The cloud browser uses real collected fingerprints

Human-Like Behavior

Utilities for simulating realistic human behavior to bypass behavioral analysis.

Mouse Movement (Bezier Curves)

from abrasio.utils import human_move_to, human_click

# Move mouse with natural Bezier curve trajectory
await human_move_to(page, x=500, y=300)

# Click with natural movement and random offset
await human_click(page, "button#submit")

Natural Typing

from abrasio.utils import human_type

await human_type(
    page,
    "Hello, World!",
    selector="input#search",
    mistake_probability=0.02,
    think_pause_probability=0.05,
)

Smooth Scrolling

from abrasio.utils import human_scroll, simulate_reading

await human_scroll(page, "down", amount=400, smooth=True)
await simulate_reading(page, min_seconds=3, max_seconds=8)

All Utilities

from abrasio.utils import (
    human_move_to,      # Bezier curve mouse movement
    human_click,        # Natural click with movement
    human_type,         # Variable-speed typing with mistakes
    human_scroll,       # Smooth scrolling with momentum
    human_wait,         # Random wait (skewed distribution)
    random_delay,       # Simple random delay
    simulate_reading,   # Simulate page reading behavior
)

TLS Fingerprinting (HTTP)

For HTTP requests outside the browser, use StealthClient which matches real browser TLS fingerprints via curl_cffi.

pip install abrasio[tls]

from abrasio.http import StealthClient

# Async
async with StealthClient() as client:
    response = await client.get("https://example.com")
    print(response.text)

# With region (auto-sets Accept-Language)
async with StealthClient(region="BR") as client:
    response = await client.get("https://example.com.br")

# With proxy
async with StealthClient(proxy="http://user:pass@host:8080") as client:
    response = await client.get("https://example.com")

# Rotate browser version on each request
async with StealthClient(rotate_impersonation=True) as client:
    for url in urls:
        response = await client.get(url)

Configuration

AbrasioConfig

from abrasio import Abrasio, AbrasioConfig, FingerprintConfig

config = AbrasioConfig(
    # Mode: None = local (free), "sk_xxx" = cloud (paid)
    api_key=None,

    # Browser
    headless=False,                  # Visible = more stealthy
    proxy="http://user:pass@host:8080",
    timeout=30000,

    # Region (auto-configures locale/timezone)
    region="BR",

    # Fingerprint (local mode only)
    fingerprint=FingerprintConfig(
        webgl=True,
        webrtc=False,
        canvas_noise=True,
        audio_noise=True,
    ),

    # Profile persistence
    user_data_dir="./my_profile",

    # Cloud mode
    profile_id="my-profile",

    # Advanced
    extra_args=[],
    debug=False,
)

async with Abrasio(config) as browser:
    ...

Region Auto-Configuration

config = AbrasioConfig(region="BR")
# locale="pt-BR", timezone="America/Sao_Paulo"

config = AbrasioConfig(region="JP")
# locale="ja-JP", timezone="Asia/Tokyo"

50+ regions supported. If you set a mismatched timezone, you'll get a warning:

config = AbrasioConfig(region="BR", timezone="America/New_York")
print(config.region_warnings)
# ['Timezone mismatch: using America/New_York but region BR expects America/Sao_Paulo']

Without explicit region, locale/timezone are auto-detected from your public IP.

Environment Variables

Variable	Description	Default
ABRASIO_API_KEY	API key for cloud mode	None
ABRASIO_API_URL	API base URL	https://abrasio.scrapetechnology.com/

Cloud Mode (Paid)

With an API key, you get access to the Abrasio cloud infrastructure:

Feature	Description
Real Fingerprints	collected device data
Geo-Targeting	Target specific countries/regions
Persistent Profiles	Maintain cookies and history across sessions
Session Recording	Playwright trace recording for debugging
Live View	Real-time browser streaming via noVNC
Automatic Retry	SDK retries on rate limit (429) with backoff

from abrasio import Abrasio

async with Abrasio(
    api_key="sk_live_xxx",
    region="BR",
    url="https://target-site.com.br",
    profile_id="my-profile",
) as browser:
    page = await browser.new_page()

    # Live view URL (if enabled on server)
    if browser.live_view_url:
        print(f"Watch live: {browser.live_view_url}")

    await page.goto("https://target-site.com.br")
    print(await page.title())

Error Handling

from abrasio import (
    Abrasio,
    AbrasioError,           # Base error
    AuthenticationError,    # Invalid API key (401)
    InsufficientFundsError, # Not enough balance (402)
    RateLimitError,         # Too many sessions (429) - auto-retried
    SessionError,           # Session creation/management error
    BrowserError,           # Browser operation error
    TimeoutError,           # Operation timeout
    BlockedError,           # Target site blocked request
)

try:
    async with Abrasio(api_key="sk_live_xxx") as browser:
        page = await browser.new_page()
        await page.goto("https://example.com")
except AuthenticationError:
    print("Invalid API key")
except InsufficientFundsError as e:
    print(f"Add funds. Balance: ${e.balance:.2f}")
except RateLimitError as e:
    print(f"Rate limited. Retry after {e.retry_after}s")
except SessionError as e:
    print(f"Session error: {e.message}")
except AbrasioError as e:
    print(f"Error: {e.message}")

Note: The SDK automatically retries on 429 (rate limit), 502, 503, 504 with exponential backoff up to 3 times.

API Reference

Abrasio

class Abrasio:
    def __init__(
        self,
        config: Optional[AbrasioConfig] = None,
        *,
        api_key: Optional[str] = None,
        headless: bool = True,
        proxy: Optional[str] = None,
        stealth: bool = True,
        **kwargs,
    ): ...

    async def start(self) -> "Abrasio": ...
    async def close(self) -> None: ...
    async def new_page(self) -> Page: ...
    async def new_context(self, **kwargs) -> BrowserContext: ...

    @property
    def browser(self): ...       # Browser (cloud) or BrowserContext (local)
    @property
    def is_cloud(self) -> bool: ...
    @property
    def is_local(self) -> bool: ...
    @property
    def live_view_url(self) -> Optional[str]: ...  # Cloud mode only

Human Utilities

async def human_move_to(page, x, y, *, min_time=0.1, max_time=1.5): ...
async def human_click(page, selector=None, *, offset_range=5, move_first=True): ...
async def human_type(page, text, selector=None, *, mistake_probability=0.02): ...
async def human_scroll(page, direction="down", amount=None, *, smooth=True): ...
async def random_delay(min_ms=100, max_ms=500): ...
async def human_wait(min_seconds=0.5, max_seconds=2.0): ...
async def simulate_reading(page, min_seconds=2.0, max_seconds=8.0): ...

StealthClient (TLS)

from abrasio.http import StealthClient, BrowserImpersonation

class StealthClient:
    def __init__(self, impersonate=BrowserImpersonation.DEFAULT,
                 proxy=None, region=None, rotate_impersonation=False): ...

    async def get(self, url, **kwargs) -> StealthResponse: ...
    async def post(self, url, **kwargs) -> StealthResponse: ...

Best Practices

1. Headless mode is safe — SDK automatically removes "HeadlessChrome" from User-Agent
2. Don't set user_agent — let the SDK handle it (auto-fixed in headless mode)
3. Don't set viewport — uses no_viewport for realistic behavior
4. Add human behavior between actions (human_wait, human_click)
5. Use persistent profiles with user_data_dir for cookie persistence
6. Use region to auto-configure locale/timezone consistently
7. Set webrtc=False when using a proxy (prevents IP leak)
8. Test against bot detection sites before production deployment

Testing Anti-Detection

import asyncio
from abrasio import Abrasio

async def test():
    async with Abrasio(headless=False) as browser:
        page = await browser.new_page()

        await page.goto("https://bot.sannysoft.com/")
        await page.screenshot(path="sannysoft.png")

        await page.goto("https://abrahamjuliot.github.io/creepjs/")
        await page.wait_for_timeout(5000)
        await page.screenshot(path="creepjs.png")

asyncio.run(test())

Project Structure

abrasio-sdk/
├── abrasio/
│   ├── __init__.py          # Public API exports
│   ├── _api.py              # Abrasio class (local + cloud)
│   ├── _config.py           # AbrasioConfig, FingerprintConfig
│   ├── _exceptions.py       # Exception hierarchy
│   ├── local/
│   │   └── browser.py       # StealthBrowser (Patchright)
│   ├── cloud/
│   │   ├── browser.py       # CloudBrowser (API + CDP)
│   │   └── api_client.py    # HTTP client with retry
│   ├── http/
│   │   └── client.py        # StealthClient (curl_cffi TLS)
│   ├── sync_api/
│   │   └── _sync.py         # Synchronous wrapper
│   └── utils/
│       ├── human.py         # Human behavior simulation
│       ├── fingerprint.py   # Region config, validation
│       └── geolocation.py   # IP-based locale detection
├── examples/
│   ├── basic_local.py       # Local mode example
│   ├── basic_cloud.py       # Cloud mode example
│   ├── human_behavior.py    # Human behavior demo
│   ├── fingerprint_check.py # Fingerprint validation
│   └── tls_fingerprint.py   # TLS fingerprinting
├── docs/                    # Documentation
└── pyproject.toml

References

• Patchright - Undetected Playwright fork
• curl_cffi - TLS fingerprinting HTTP client
• BrowserForge - Fingerprint generation
• Ghost Cursor - Bezier curve mouse movements

Support & Community

Channel	Link
💬 Discord	discord.gg/GBSKsC8DvS
📧 Email	joao.sobhie@scrapetechnology.com
🌐 Docs	scrapetechnology.com/abrasio/docs

For bug reports and feature requests, open a thread in the #abrasio-feedback channel on Discord.

License

Proprietary - Scrape Technology