reCAPTCHA V2 demo

This page explains how reCAPTCHA V2 is displayed and how reCAPTCHA V2 verification works. reCAPTCHA V2 also known as "I'm not a robot" reCAPTCHA is a very popular type of captcha that looks like this:

reCAPTCHA v2 interrupts testing and scraping, causing flakiness in CI. Outsource recognition to a solver service via API.

reCAPTCHA V2 solver

API

How to bypass reCAPTCHA V2

Open developer's console in your browser and find element with data-sitekey attribute.

Send sitekey and pageurl to our API.

  <div class="g-recaptcha" data-sitekey="6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u" id="recaptcha"></div>

With SDK (recommended):

PHP

    // https://github.com/solvercaptcha/solvecaptcha-php
    
    require(__DIR__ . '/../src/autoloader.php');

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

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

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

Python

    // https://github.com/solvercaptcha/solvecaptcha-python
    
    import sys
    import os

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

    from solvecaptcha import SolveCaptcha

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

    solver = SolveCaptcha(api_key)

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

    except Exception as e:
        sys.exit(e)

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

Java

    // https://github.com/solvercaptcha/solvecaptcha-java
    
    package examples;

    import com.solvecaptcha.SolveCaptcha;
    import com.solvecaptcha.captcha.Normal;

    public class reCAPTCHAV2Example {
        public static void main(String[] args) {
            SolveCaptcha solver = new SolveCaptcha("YOUR_API_KEY");
            ReCaptcha captcha = new ReCaptcha();
            captcha.setSiteKey("6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u");
            captcha.setUrl("https://solvecaptcha.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/solvercaptcha/solvecaptcha-csharp
    
    using System;
    using System.Linq;
    using SolveCaptcha.Captcha;

    namespace SolveCaptcha.Examples
    {
        public class reCAPTCHAV2Example
    {
        public void Main()
        {
            SolveCaptcha solver = new SolveCaptcha("YOUR_API_KEY");
            ReCaptcha captcha = new ReCaptcha();
            captcha.SetSiteKey("6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u");
            captcha.SetUrl("https://solvecaptcha.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/solvercaptcha/solvecaptcha-go
    
    package main

    import (
        "fmt"
        "log"
        "github.com/solvercaptcha/solvecaptcha-go"
    )

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

C++

    // https://github.com/solvercaptcha/solvecaptcha-cpp
    
    #include <cstdio>

    #include "curl_http.hpp"
    #include "apisolvecaptcha.hpp"

    int main (int ac, char ** av)
    {
    apisolvecaptcha::curl_http_t http;
    http.set_verbose (true);

    apisolvecaptcha::client_t client;
    client.set_http_client (&http);
    client.set_api_key (API_KEY);

    apisolvecaptcha::recaptcha_t cap;
    cap.set_site_key ("6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u");
    cap.set_url ("https://solvecaptcha.com/demo/recaptcha-v2");

    try
    {
        client.solve (cap);
        printf ("code '%s'\n", cap.code ().c_str ());
    }
    catch (std::exception & e)
    {
        fprintf (stderr, "Failed: %s\n", e.what ());
    }

    return 0;   
    }

Ruby

    // https://github.com/solvercaptcha/solvecaptcha-ruby
    
    require 'api_solvecaptcha'

    client =  Apisolvecaptcha.new("YOUR_API_KEY")

    result = client.recaptcha_v2({
        googlekey: '6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-',
        pageurl: 'https://mysite.com/page/with/recaptcha_v2'
    })

Manually:

Send GET or POST request to our API URL: https://solvecaptcha.com/in.php with method set to userrecaptcha and provide the value found on previous step as value for googlekey and full page URL as value for pageurl. Request example:

  GET https://solvecaptcha.com/in.php?key=YOUR_API_KEY&method=userrecaptcha&googlekey=6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u&pageurl=http://solvecaptcha.com/demo/recaptcha-v2-callback

If everything is fine server will return the ID of your captcha:

  OK|2122988149

Otherwise server will return an error code. After 15-20 seconds send GET request to get the result:

  GET https://solvecaptcha.com/res.php?key=YOUR_API_KEY&action=get&id=2122988149

If captcha is already solved server will respond with the answer token:

  OK|03AHJ_Vuve5Asa4koK3KSMyUkCq0vUFCR5Im4CwB7PzO3dCxIo11i53epEraq-uBO5mVm2XRikL8iKOWr0aG50sCuej9bXx5qcviUGSm4iK4NC_Q88flavWhaTXSh0VxoihBwBjXxwXuJZ-WGN5Sy4dtUl2wbpMqAj8Zwup1vyCaQJWFvRjYGWJ_TQBKTXNB5CCOgncqLetmJ6B6Cos7qoQyaB8ZzBOTGf5KSP6e-K9niYs772f53Oof6aJeSUDNjiKG9gN3FTrdwKwdnAwEYX-F37sI_vLB1Zs8NQo0PObHYy0b0sf7WSLkzzcIgW9GR0FwcCCm1P8lB-50GQHPEBJUHNnhJyDzwRoRAkVzrf7UkV8wKCdTwrrWqiYDgbrzURfHc2ESsp020MicJTasSiXmNRgryt-gf50q5BMkiRH7osm4DoUgsjc_XyQiEmQmxl5sqZP7aKsaE-EM00x59XsPzD3m3YI6SRCFRUevSyumBd7KmXE8VuzIO9lgnnbka4-eZynZa6vbB9cO3QjLH0xSG3-egcplD1uLGh79wC34RF49Ui3eHwua4S9XHpH6YBe7gXzz6_mv-o-fxrOuphwfrtwvvi2FGfpTexWvxhqWICMFTTjFBCEGEgj7_IFWEKirXW2RTZCVF0Gid7EtIsoEeZkPbrcUISGmgtiJkJ_KojuKwImF0G0CsTlxYTOU2sPsd5o1JDt65wGniQR2IZufnPbbK76Yh_KI2DY4cUxMfcb2fAXcFMc9dcpHg6f9wBXhUtFYTu6pi5LhhGuhpkiGcv6vWYNxMrpWJW_pV7q8mPilwkAP-zw5MJxkgijl2wDMpM-UUQ_k37FVtf-ndbQAIPG7S469doZMmb5IZYgvcB4ojqCW3Vz6Q

If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds. If something went wrong server will return an error code.

In developer's console, find textarea with id="g-recaptcha-response", and put there received code. Then, click the Check button.