Cloudflare: solving Challenge (5s)

TIP

Create the task with the createTask method and get the result with the getTaskResult method.

DANGER

ℹ️ This task type require your own proxies.

Supported

We support most cloudflare protected sites, including 5s challenge, turnstile and other sites with verification mode. But since the site mode can be customized, if your site does not support please contact us.

The Turnstile/Challenge captcha is another attempt to replace reCaptcha/hCaptcha. We automatically support these subtypes:

turnstile
- Manually
- Non-Interactive
- InVisible
challenge
- 5s challenge
- Non-Interactive turnstile

There is no need to specify subtypes during your call. It is not necessary to provide your own custom User-Agent yet, we will ignore this parameter.

Type	Note	State
	challenge	stable
	challenge + turnstile	stable

The task type type is as follows

AntiCloudflareTask Proxy required

Create Task

Create the task with the createTask.

In the process of using challenge, we must input websiteURL,proxy other parameters are optional.

Task Object Structure

Properties	Type	Required	Description
type	String	Required	`AntiCloudflareTask`
websiteURL	String	Required	The address of the target page.
proxy	String	Required	Learn using proxies

Example request

POST https://api.capsolver.com/createTask
Host: api.capsolver.com
Content-Type: application/json

{
  "clientKey": "YOUR_API_KEY",
  "task": {
    "type": "AntiCloudflareTask",
    "websiteURL": "https://www.yourwebsite.com",
    "proxy": "158.120.100.23:334:user:pass"
  }
}

Example Response

{
  "errorId": 0,
  "status": "idle",
  "taskId": "61138bb6-19fb-11ec-a9c8-0242ac110006"  // record taskId
}

Getting Result

Use the getTaskResult method to get the recognition results

Depending on the system load, you will get the results within the interval of 1s to 20s

Example Request

POST https://api.capsolver.com/getTaskResult
Host: api.capsolver.com
Content-Type: application/json

{
  "clientKey": "YOUR_API_KEY",
  "taskId": "61138bb6-19fb-11ec-a9c8-0242ac110006"
}

Example Response

{
  "errorId": 0,
  "taskId": "61138bb6-19fb-11ec-a9c8-0242ac110006",
  "status": "ready",
  "solution": {
    "cookies": {
      "cf_clearance": "..."
    },
    "proxy": "...",
    "token": "...",
    "type": "challenge",
    "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
  }
}

Use SDK Request

# pip install --upgrade capsolver
# export CAPSOLVER_API_KEY='...'
 
import capsolver
 
# capsolver.api_key = "..."
solution = capsolver.solve({
    "type": "AntiCloudflareTask",
    "websiteURL": "https://www.yourwebsite.com",
    "proxy": "158.120.100.23:334:user:pass"
})

Sample Code

# pip install requests
# pip install tls-client
import tls_client
import requests
import time
 
api_key = "your api key of capsolver"
page_url = "Your target site url"
proxy = "http://name:pass@host:port"
 
def capsolver():
    payload = {
        "clientKey": api_key,
        "task": {
            "type": "AntiCloudflareTask",
            "websiteURL": page_url,
            "proxy": proxy
        }
    }
    res = requests.post("https://api.capsolver.com/createTask", json=payload)
    resp = res.json()
    task_id = resp.get("taskId")
    if not task_id:
        print("Failed to create task:", res.text)
        return
    print(f"Got taskId: {task_id} / Getting result...")
 
    while True:
        time.sleep(1)  # delay
        payload = {"clientKey": api_key, "taskId": task_id}
        res = requests.post("https://api.capsolver.com/getTaskResult", json=payload)
        resp = res.json()
        status = resp.get("status")
        if status == "ready":
            return resp.get("solution", {})
        if status == "failed" or resp.get("errorId"):
            print("Solve failed! response:", res.text)
            return
 
def request_site(solution):
    session = tls_client.Session(
        client_identifier="chrome_120",
        random_tls_extension_order=True
    )
    return session.get(
        page_url,
        headers=solution.get('headers'),
        cookies=solution.get('cookies'),
        proxy=proxy,
    )
 
def main():
    solution = capsolver()
    if not solution:
        return
    res = request_site(solution)
    print('response status code:', res.status_code)
 
 
if __name__ == '__main__':
    main()

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) {
	uri := "https://api.capsolver.com/createTask"
	res, err := request(ctx, uri, map[string]any{
		"clientKey": apiKey,
		"task":      taskData,
	})
	if err != nil {
		return nil, err
	}
	if res.ErrorId == 1 {
		return nil, errors.New(res.ErrorDescription)
	}
 
	uri = "https://api.capsolver.com/getTaskResult"
	for {
		select {
		case <-ctx.Done():
			return res, errors.New("solve timeout")
		case <-time.After(time.Second):
			break
		}
		res, err = request(ctx, uri, map[string]any{
			"clientKey": apiKey,
			"taskId":    res.TaskId,
		})
		if err != nil {
			return nil, err
		}
		if res.ErrorId == 1 {
			return nil, errors.New(res.ErrorDescription)
		}
		if res.Status == "ready" {
			return res, err
		}
	}
}
 
func request(ctx context.Context, uri string, payload interface{}) (*capSolverResponse, error) {
	payloadBytes, err := json.Marshal(payload)
	if err != nil {
		return nil, err
	}
	req, err := http.NewRequestWithContext(ctx, "POST", uri, 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
	}
	capResponse := &capSolverResponse{}
	err = json.Unmarshal(responseData, capResponse)
	if err != nil {
		return nil, err
	}
	return capResponse, nil
}
 
func main() {
	apikey := "YOUR_API_KEY"
	ctx, cancel := context.WithTimeout(context.Background(), time.Second*120)
	defer cancel()
 
	res, err := capSolver(ctx, apikey, map[string]any{
		"type":       "AntiCloudflareTask",
		"websiteURL": "https://www.yourwebsite.com",
		"proxy":      "158.120.100.23:334:user:pass",
	})
	if err != nil {
		panic(err)
	}
	fmt.Println(res.Solution)
}

// npm install axios
const axios = require('axios');
 
const api_key = "your api key of capsolver";
const page_url = "https://www.yourwebsite.com";
const proxy = "http://name:pass@host:port"
 
async function capsolver() {
  const payload = {
    clientKey: api_key,
    task: {
      type: 'AntiCloudflareTask',
      websiteURL: page_url,
      proxy: proxy
    }
  };
 
  try {
    const res = await axios.post("https://api.capsolver.com/createTask", payload);
    const task_id = res.data.taskId;
    if (!task_id) {
      console.log("Failed to create task:", res.data);
      return;
    }
    console.log("Got taskId:", task_id);
 
    while (true) {
      await new Promise(resolve => setTimeout(resolve, 1000)); // Delay for 1 second
 
      const getResultPayload = {clientKey: api_key, taskId: task_id};
      const resp = await axios.post("https://api.capsolver.com/getTaskResult", getResultPayload);
      const status = resp.data.status;
 
      if (status === "ready") {
        return resp.data.solution;
      }
      if (status === "failed" || resp.data.errorId) {
        console.log("Solve failed! response:", resp.data);
        return;
      }
    }
  } catch (error) {
    console.error("Error:", error);
  }
}
 
capsolver().then(solution => {
  console.log(solution);
});

package org.example.capsolver;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
 
 
public class Challenge {
    public static String API_KEY = "YOUR_API_KEY"; 
    public static String SITE_URL = "https://www.yourwebsite.com";
    public static String PROXY = "http://name:pass@host:port";
 
    public static void capsolver() throws IOException, InterruptedException {
        JSONObject param = new JSONObject();
        Map<String, Object> task = new HashMap<>();
        task.put("type", "AntiCloudflareTask");
        task.put("websiteURL", SITE_URL);
        task.put("proxy", PROXY);
        param.put("clientKey", API_KEY);
        param.put("task", task);
        String taskId = createTask(param);
 
        if (Objects.equals(taskId, "")) {
            System.out.println("Failed to create task");
            return;
        }
        System.out.println("Got taskId: "+taskId+" / Getting result...");
        while (true){
            Thread.sleep(1000);
            String token = getTaskResult(taskId);
            if (Objects.equals(token, null)) {
                continue;
            }
            System.out.println(token);
            break;
        }
    }
 
    public static String requestPost(String url, JSONObject param) throws IOException {
        URL ipapi = new URL(url);
        HttpURLConnection c = (HttpURLConnection) ipapi.openConnection();
        c.setRequestMethod("POST");
        c.setDoOutput(true);
 
        OutputStream os = null;
        os = c.getOutputStream();
        os.write(param.toString().getBytes("UTF-8"));
 
        c.connect();
        BufferedReader reader = new BufferedReader(
                new InputStreamReader(c.getInputStream())
        );
        String line;
        StringBuilder sb = new StringBuilder();
        while ((line = reader.readLine()) != null)
        { sb.append(line); }
 
        return sb.toString();
    }
 
    public static String createTask(JSONObject param) throws IOException {
        String parsedJsonStr = requestPost("https://api.capsolver.com/createTask", param);
        JSONObject responseJson = new JSONObject(parsedJsonStr);
        return responseJson.get("taskId").toString();
    }
 
    public static String getTaskResult(String taskId) throws IOException {
        JSONObject param = new JSONObject();
        param.put("clientKey", API_KEY);
        param.put("taskId", taskId);
        String parsedJsonStr = requestPost("https://api.capsolver.com/getTaskResult", param);
        JSONObject responseJson = new JSONObject(parsedJsonStr);
 
        String status = responseJson.getString("status");
        if (status.equals("ready")) {
            JSONObject solution = responseJson.getJSONObject("solution");
            return solution.toString(4);
        }
        if (status.equals("failed") || responseJson.getInt("errorId")!=0) {
            System.out.println("Solve failed! response: "+parsedJsonStr);
            return "error";
        }
        return null;
    }
}

Getting Started