How to Bypass CAPTCHA in Chrome Using the 2Captcha API v2

CAPTCHAs protect websites from automated access but can create challenges for legitimate tasks. This guide explains how to bypass CAPTCHAs in Chrome using 2Captcha API v2 and the browser extension.

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Prerequisites

To get started, you will need:

1. Basic programming knowledge (Python is used in this guide).
2. An account on 2Captcha.
3. The Chrome browser installed.
4. The 2Captcha Solver extension.
5. Your API key from your 2Captcha account.
6. Python installed on your computer.

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Step 1: Install Required Tools

Install the requests library to interact with the API:

pip install requests

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Step 2: Configure the 2Captcha Extension

1. Install the 2Captcha Solver extension from the Chrome Web Store.
2. Enter your API key in the extension settings.

Once configured, the extension will automatically solve CAPTCHAs on supported websites.

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Step 3: Solve CAPTCHAs Programmatically with 2Captcha API v2

Example 1: Solving reCAPTCHA Without a Proxy

Use the RecaptchaV2TaskProxyless method to solve reCAPTCHA:

import requests
import time

API_KEY = 'your_api_key'  # Replace with your actual API key
site_url = 'https://example.com'  # Target website URL
site_key = 'your_site_key'  # Extract this from the page's HTML source

# Create a task to solve the CAPTCHA
create_task_url = 'https://api.2captcha.com/createTask'
data = {
    "clientKey": API_KEY,
    "task": {
        "type": "RecaptchaV2TaskProxyless",
        "websiteURL": site_url,
        "websiteKey": site_key
    }
}
response = requests.post(create_task_url, json=data).json()

if response.get('errorId') != 0:
    print(f"Error: {response.get('errorDescription')}")
    exit()

task_id = response['taskId']  # Task ID to check for the solution

# Wait for the solution
get_result_url = 'https://api.2captcha.com/getTaskResult'
while True:
    result_response = requests.post(get_result_url, json={"clientKey": API_KEY, "taskId": task_id}).json()
    if result_response.get('errorId') != 0:
        print(f"Error: {result_response.get('errorDescription')}")
        exit()

    if result_response.get('status') == 'ready':
        solution = result_response['solution']['gRecaptchaResponse']
        print(f"CAPTCHA solved: {solution}")
        break

    print("Waiting for CAPTCHA solution...")
    time.sleep(5)  # Wait before checking again

Example 2: Solving reCAPTCHA With a Proxy

To bypass IP-based restrictions, use the RecaptchaV2Task method with proxy settings:

proxy = {
    "type": "HTTPS",  # Proxy type (HTTP, HTTPS, SOCKS4, SOCKS5)
    "address": "proxy.example.com",
    "port": 1234,
    "login": "proxy_user",  # Optional, if authentication is required
    "password": "proxy_password"  # Optional, if authentication is required
}

data = {
    "clientKey": API_KEY,
    "task": {
        "type": "RecaptchaV2Task",
        "websiteURL": site_url,
        "websiteKey": site_key,
        "proxyType": proxy["type"],
        "proxyAddress": proxy["address"],
        "proxyPort": proxy["port"],
        "proxyLogin": proxy.get("login"),
        "proxyPassword": proxy.get("password")
    }
}
response = requests.post(create_task_url, json=data).json()

if response.get('errorId') != 0:
    print(f"Error: {response.get('errorDescription')}")
    exit()

# Follow the same steps to retrieve and use the solution.

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Step 4: Integration with Chrome

Use Selenium to inject the CAPTCHA solution into Chrome:

from selenium import webdriver
from selenium.webdriver.common.by import By

# Launch Chrome
options = webdriver.ChromeOptions()
options.add_argument('--disable-blink-features=AutomationControlled')
driver = webdriver.Chrome(options=options)

# Open the target website
driver.get(site_url)

# Inject the CAPTCHA solution
captcha_solution = solution
script = f"document.getElementById('g-recaptcha-response').innerHTML = '{captcha_solution}';"
driver.execute_script(script)

# Submit the form
submit_button = driver.find_element(By.ID, "submit-button")
submit_button.click()

print("CAPTCHA bypassed, form submitted!")
driver.quit()

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Frequently Asked Questions

How does the 2Captcha API work?
The API provides automated CAPTCHA solving through a user-friendly interface or scripts.

Can I use 2Captcha for reCAPTCHA in Chrome?
Yes, both the API and the extension effectively solve reCAPTCHA challenges.

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Troubleshooting

• Verify that your API key is correct.
• If the script fails, ensure the API is up-to-date and adjust delays for CAPTCHA resolution.
• To avoid detection, use proxies and mimic human-like behavior.

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Conclusion

Using 2Captcha API v2 and the browser extension, you can efficiently bypass CAPTCHAs in Chrome. This approach supports both manual and programmatic solutions, making it flexible for various tasks.

For more information, refer to the 2Captcha API Documentation.