Comprehensive Guide to Solving reCAPTCHA v2 Enterprise

Solving reCAPTCHA v2 Enterprise can be challenging due to the advanced security measures Google has implemented. This guide will walk you through the process of solving reCAPTCHA v2 Enterprise, covering everything from understanding its complexities to using available tools and techniques.

Table of Contents

• What is reCAPTCHA v2 Enterprise?
• Why is reCAPTCHA v2 Enterprise Difficult to Solve?
• Methods to Solve reCAPTCHA v2 Enterprise
  • 1. Manual Solving
  • 2. Using CapSolver
• Code Examples
  • Python Example
  • Golang Example
• References

What is reCAPTCHA v2 Enterprise?

reCAPTCHA v2 Enterprise is a more secure version of the traditional reCAPTCHA v2. It’s designed to prevent automated bots from accessing websites by presenting challenges that are difficult for machines but easy for humans. Unlike the standard version, the Enterprise edition comes with enhanced security features, making it more challenging to solve.

Why is reCAPTCHA v2 Enterprise Difficult to Solve?

• Advanced Risk Analysis: reCAPTCHA v2 Enterprise uses sophisticated algorithms to analyze user behavior and interaction patterns, making it difficult for bots to mimic human actions.

• Increased Challenge Complexity: The challenges presented are often more complex, requiring multiple attempts or sophisticated techniques to solve.

• Server-Side Validation: Google performs additional server-side checks, which can flag suspicious activity, increasing the likelihood of reCAPTCHA being triggered repeatedly.

Methods to Solve reCAPTCHA v2 Enterprise

1. Manual Solving

Manual solving involves human users completing the CAPTCHA challenges. This method is the most reliable but is not scalable for large-scale operations due to the manual effort required.

2. Using CapSolver (Most Reliable Solution for reCAPTCHA v2 Enterprise)

CapSolver is a highly reliable solution for solving reCAPTCHA v2 Enterprise challenges. Here’s how to get started:

1. Installation:

   • Install the Captcha Solver Auto Solve extension on Chrome, or the Firefox version for Firefox.

2. CapSolver Setup:

   • Visit CapSolver.
   • Open the developer tools (F12) and navigate to the CapSolver Captcha Detector tab.

3. Detection:

   • Trigger the CAPTCHA on the target site without closing the CapSolver panel.
   • The panel will automatically detect and display the required parameters.

4. Identifying reCAPTCHA Parameters:

   • Look for the isEnterprise parameter in the detected JSON. If present, it confirms that the CAPTCHA is indeed reCAPTCHA v2 Enterprise.

Code Examples

Python Example

import requests
import time

api_key = "YOUR_API_KEY"
site_key = "YOUR_SITE_KEY"
site_url = "YOUR_SITE_URL"

def capsolver():
    payload = {
        "clientKey": api_key,
        "task": {
            "type": 'ReCaptchaV2EnterpriseTaskProxyLess',
            "websiteKey": site_key,
            "websiteURL": site_url
        }
    }

    response = requests.post("https://api.capsolver.com/createTask", json=payload)
    task_id = response.json().get("taskId")

    if not task_id:
        print(f"Failed to create task: {response.text}")
        return

    print(f"Task created successfully. Task ID: {task_id}. Retrieving result...")

    while True:
        time.sleep(3)
        result_payload = {"clientKey": api_key, "taskId": task_id}
        result_response = requests.post("https://api.capsolver.com/getTaskResult", json=result_payload)
        status = result_response.json().get("status")

        if status == "ready":
            return result_response.json().get("solution", {}).get('gRecaptchaResponse')
        elif status == "failed" or result_response.json().get("errorId"):
            print(f"Solve failed! Response: {result_response.text}")
            return

token = capsolver()
if token:
    print(f"CAPTCHA solved successfully. Token: {token}")

Golang Example

package main

import (
    "bytes"
    "context"
    "encoding/json"
    "errors"
    "fmt"
    "io"
    "net/http"
    "time"
)

type capSolverResponse struct {
    ErrorId          int32          `json:"errorId"`
    ErrorCode        string         `json:"errorCode"`
    ErrorDescription string         `json:"errorDescription"`
    TaskId           string         `json:"taskId"`
    Status           string         `json:"status"`
    Solution         map[string]any `json:"solution"`
}

func capSolver(ctx context.Context, apiKey string, taskData map[string]any) (*capSolverResponse, error) {
    createTaskURL := "https://api.capsolver.com/createTask"
    response, err := request(ctx, createTaskURL, map[string]any{
        "clientKey": apiKey,
        "task":      taskData,
    })

    if err != nil {
        return nil, err
    }
    if response.ErrorId != 0 {
        return nil, errors.New(response.ErrorDescription)
    }

    resultURL := "https://api.capsolver.com/getTaskResult"
    for {
        select {
        case <-ctx.Done():
            return response, errors.New("solve timeout")
        case <-time.After(time.Second):
            result, err := request(ctx, resultURL, map[string]any{
                "clientKey": apiKey,
                "taskId":    response.TaskId,
            })

            if err != nil {
                return nil, err
            }
            if result.ErrorId != 0 {
                return nil, errors.New(result.ErrorDescription)
            }
            if result.Status == "ready" {
                return result, nil
            }
        }
    }
}

func request(ctx context.Context, url string, payload interface{}) (*capSolverResponse, error) {
    payloadBytes, err := json.Marshal(payload)
    if err != nil {
        return nil, err
    }

    req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewReader(payloadBytes))
    if err != nil {
        return nil, err
    }

    req.Header.Set("Content-Type", "application/json")
    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    responseData, err := io.ReadAll(resp.Body)
    if err != nil {
        return nil, err
    }

    var capResponse capSolverResponse
    if err := json.Unmarshal(responseData, &capResponse); err != nil {
        return nil, err
    }

    return &capResponse, nil
}

func main() {
    apiKey := "YOUR_API_KEY"
    ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
    defer cancel()

    result, err := capSolver(ctx, apiKey, map[string]any{
        "type":       "ReCaptchaV2EnterpriseTaskProxyLess",
        "websiteURL": "YOUR_SITE_URL",
        "websiteKey": "YOUR_SITE_KEY",
    })

    if err != nil {
        panic(err)
    }

    fmt.Printf("CAPTCHA solved successfully. Token: %v\n", result.Solution["gRecaptchaResponse"])
}

References

For more details on using CapSolver for solving reCAPTCHA v2 Enterprise, check out the CapSolver reCAPTCHA v2 Guide.