captcha-ai-solver

Captcha AI Solver

Python library that solves reCAPTCHA v2 by replicating the challenge locally and using Wit.ai for audio transcription. Windows-only, requires admin privileges.

Features

• Replicates reCAPTCHA v2 by spoofing domains in hosts file
• Solves standard reCAPTCHA v2
• Uses Wit.ai API for audio challenge transcription
• Returns solution tokens for form submission

Installation

pip install captcha-ai-solver

Important Note

Windows Only - Requires Admin privileges (modifies hosts file when it needs to replicate the captcha environment and spoof the original website domain).

This library inputs captcha parameters and outputs solution tokens. For extracting parameters or applying tokens, see: this guide

Quick Start

from captcha_solver import solve_captcha

# Define captcha parameters
captcha_params = {
    "website_url": "https://www.google.com/recaptcha/api2/demo",
    "website_key": "6Le-wvkSAAAAAPBMRTvw0Q4Muexq9bi0DJwx_mJ-"
}

# solver configuration
solver_config = {
    "wit_api_key": "YOUR_WIT_API_KEY",  # NEEDED for recaptcha audio challenges
}

# Solve the captcha
result = solve_captcha(
    captcha_type="recaptcha_v2",
    captcha_params=captcha_params,
    solver_config=solver_config
)

if result["success"]:
    print(f"Captcha solved! Token: {result['token'][:30]}...")
    # Use the token in your application
else:
    print(f"Failed to solve captcha: {result['error']}")

Detailed Usage

Supported Captcha Types

Currently, the library supports:

• RecaptchaV2: Standard reCAPTCHA v2

Captcha Parameters

For RecaptchaV2:

Parameter	Type	Required	Description
website_url	string	Yes	URL of the website with the captcha
website_key	string	Yes	reCAPTCHA site key

Solver Configuration

Option	Type	Description
wit_api_key	string	API key for Wit.ai speech recognition (required for audio challenges)
download_dir	string	Directory for temporary files (default: "tmp")

Return Value

The solve_captcha function returns a result object with the following properties:

Property	Type	Description
success	boolean	Whether the solving was successful
token	string or null	The solved captcha token if successful, null otherwise
error	string or null	Error message if unsuccessful, null otherwise

Example Script

The library includes an example script that demonstrates how to use it:

python example.py --website "https://example.com" --key "your-recaptcha-key"

How It Works

The library uses a combination of browser automation and AI-powered audio transcription to solve reCAPTCHA challenges:

• It replicates the reCAPTCHA challenge in a controlled environment
• For audio challenges, it uses AI to transcribe the audio
• It submits the answer and retrieves the verification token
• The token can then be used to bypass the captcha on the target website

Requirements

• Python 3.7+
• SeleniumBase
• Requests
• Python-dotenv
• Wit.ai API key (for audio challenges)

Disclaimer

This library is intended for legitimate testing, development, and automation purposes only. Please use responsibly and in accordance with the target website's terms of service.

Development Setup

If you want to contribute or modify the library, follow these steps to set up a development environment:

• Clone the repository:

git clone https://github.com/njraladdin/captcha-ai-solver.git
cd captcha-ai-solver

• Create and activate a virtual environment:

On Windows:

python -m venv venv
venv\Scripts\activate

On macOS/Linux:

python -m venv venv
source venv/bin/activate

• Install the dependencies in development mode:

python -m pip install -e .

• Install development dependencies (optional):

pip install -e ".[dev]"

• Create a .env file with your WIT.ai API key for audio challenges:

WIT_API_KEY=your_key_here