reCAPTCHA V2

// https://github.com/2captcha/2captcha-php

require(__DIR__ . '/../src/autoloader.php');

$solver = new \TwoCaptcha\TwoCaptcha('YOUR_API_KEY');

try {
    $result = $solver->recaptcha([
        'sitekey' => '6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u',
        'url'     => 'https://rucaptcha.com/demo/recaptcha-v2',
    ]);
} catch (\Exception $e) {
    die($e->getMessage());
}

die('Captcha solved: ' . $result->code);

# https://github.com/2captcha/2captcha-python

import sys
import os

sys.path.append(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))

from twocaptcha import TwoCaptcha

api_key = os.getenv('APIKEY_2CAPTCHA', 'YOUR_API_KEY')

solver = TwoCaptcha(api_key)

try:
    result = solver.recaptcha(
        sitekey='6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u',
        url='https://rucaptcha.com/demo/recaptcha-v2')

except Exception as e:
    sys.exit(e)

else:
    sys.exit('solved: ' + str(result))

// https://github.com/2captcha/2captcha-csharp

using System;
using System.Linq;
using TwoCaptcha.Captcha;

namespace TwoCaptcha.Examples
{
    public class reCAPTCHAV2Example
    {
        public void Main()
        {
            TwoCaptcha solver = new TwoCaptcha("YOUR_API_KEY");
            ReCaptcha captcha = new ReCaptcha();
            captcha.SetSiteKey("6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u");
            captcha.SetUrl("https://rucaptcha.com/demo/recaptcha-v2");
            try
            {
                solver.Solve(captcha).Wait();
                Console.WriteLine("Captcha solved: " + captcha.Code);
            }
            catch (AggregateException e)
            {
                Console.WriteLine("Error occurred: " + e.InnerExceptions.First().Message);
            }
        }
    }
}

// https://github.com/2captcha/2captcha-java

package examples;

import com.twocaptcha.TwoCaptcha;
import com.twocaptcha.captcha.reCAPTCHA;

public class reCAPTCHAV2Example {
    public static void main(String[] args) {
        TwoCaptcha solver = new TwoCaptcha("YOUR_API_KEY");
        ReCaptcha captcha = new ReCaptcha();
        captcha.setSiteKey("6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u");
        captcha.setUrl("https://rucaptcha.com/demo/recaptcha-v2");
        try {
            solver.solve(captcha);
            System.out.println("Captcha solved: " + captcha.getCode());
        } catch (Exception e) {
            System.out.println("Error occurred: " + e.getMessage());
        }
    }

}

// https://github.com/2captcha/2captcha-go

package main

import (
    "fmt"
    "log"
    "github.com/2captcha/2captcha-go"
)

func main() {
    client := api2captcha.NewClient("API_KEY")
    captcha := api2captcha.ReCaptcha{
        SiteKey: "6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u",
        Url: "https://rucaptcha.com/demo/recaptcha-v2",
    } 
    code, err := client.Solve(captcha.ToRequest())
    if err != nil {
        log.Fatal(err);
    }
    fmt.Println("code "+code)
}

# https://github.com/2captcha/2captcha-ruby

require 'api_2captcha'

client =  Api2Captcha.new("YOUR_API_KEY")

result = client.recaptcha_v2({
  googlekey: '6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u',
  pageurl: 'https://rucaptcha.com/demo/recaptcha-v2'
})