Binance - Binance captcha

Attention!

CapMonster Cloud uses built-in proxies by default — their cost is already included in the service. You only need to specify your own proxies in cases where the website does not accept the token or access to the built-in services is restricted.
If you are using a proxy with IP authorization, make sure to whitelist the address 65.21.190.34.
Use only to log in with your account.

Request parameters

IMPORTANT: some parameter values are dynamic — they change with each render of the page using Binance.
Extract them immediately before creating the task to avoid errors during solving.
See examples of parameter extraction in the section How to get websiteKey and validateId.

type<string>required

BinanceTask

websiteURL<string>required

The address of the main page where the captcha is solved.

websiteKey<string>required

A unique parameter for your website's section. The value of the parameter bizId, bizType, or bizCode. It can be taken from the traffic (see the description below).
Format example: login

validateId<string>required

A dynamic key. The value of the parameter validateId, securityId, or securityCheckResponseValidateId. It can be taken from the traffic (see the description below).
Format example: cb0bfefa598b4c3887661fde54ecd57b

userAgent<string>optional

Browser User-Agent. Use the current value supported by CapMonster Cloud: userAgentPlaceholder

You can get the latest value at: https://capmonster.cloud/api/useragent/actual.

proxyType<string>optional

http - regular http/https proxy;
https - try this option only if "http" doesn't work (required for some custom proxies);
socks4 - socks4 proxy;
socks5 - socks5 proxy.

proxyAddress<string>optional

IPv4/IPv6 proxy IP address. Not allowed:

using transparent proxies (where you can see the client's IP);
using proxies on local machines.

proxyPort<integer>optional

Proxy port.

proxyLogin<string>optional

Proxy-server login.

proxyPassword<string>optional

Proxy-server password.

Create task method

BinanceTask (without proxy)
BinanceTask (with proxy)

POST

https://api.capmonster.cloud/createTask

Request example

{
  "clientKey": "API_KEY",
  "task": {
    "type": "BinanceTask",
    "websiteURL": "https://yourwebsite.com/page-with-binance",
    "websiteKey": "your-website-key",
    "validateId": "your-validate-id",
    "userAgent": "userAgentPlaceholder"
  }
}

Response example

{
  "errorId":0,
  "taskId":407533072
}

POST

https://api.capmonster.cloud/createTask

Request example

{
  "clientKey": "API_KEY",
  "task": {
    "type": "BinanceTask",
    "websiteURL": "https://yourwebsite.com/page-with-binance",
    "websiteKey": "your-website-key",
    "validateId": "your-validate-id",
    "userAgent": "userAgentPlaceholder",
    "proxyType": "your-proxy-type",
    "proxyAddress": "your-proxy-address",
    "proxyPort": 1234,
    "proxyLogin": "your-proxy-login",
    "proxyPassword": "your-proxy-password",
    "userAgent": "userAgentPlaceholder"
  }
}

Response example

{
  "errorId":0,
  "taskId":407533072
}

Get task result method

Use the method getTaskResult to obtain the Binance solution.

POST

https://api.capmonster.cloud/getTaskResult

Request example

{
  "clientKey":"API_KEY",
  "taskId": 407533072
}

Response example

{
  "errorId": 0,
  "status": "ready",
  "solution": {
    "token": "captcha#09ba4905a79f44f2a99e44f234439644-ioVA7neog7eRHCDAsC0MixpZvt5kc99maS943qIsquNP9D77",
    "userAgent": "userAgentPlaceholder"
  }
}

How to get `websiteKey` and `validateId`

Enable Developer Tools, go to the Network tab, activate the CAPTCHA, and look at the requests. Some of them will contain the required parameter values. For example, the parameters:

bizCode: "CMC_register", securityId: "09295759baca4d4fbeae80d9ffeaefd8"

bizId: "CMC_register", securityCheckResponseValidateId: "09295759baca4d4fbeae80d9ffeaefd8"

bizType: "login", validateId: "ff965ea6216b46f3825fa827ecaf297f"

bizId: "login", securityCheckResponseValidateId: "ff965ea6216b46f3825fa827ecaf297f"

The necessary parameters to solve the captcha can be obtained by executing JavaScript:

let originalBCaptcha = window.BCaptcha;
let BCaptchaData;

Object.defineProperty(window, 'BCaptcha', {
  get: function() {
    return function(args) {
      const BCaptcha = new originalBCaptcha(args);
      let BCaptchaShow = BCaptcha.__proto__.show;
      
      BCaptcha.__proto__.show = function(args) {
        BCaptchaData = args;
        return 1;
      };
      
      return BCaptcha;
    };
  }
});

Then, you can retrieve the parameters, for example, like this BCaptchaData.securityCheckResponseValidateId.

Use the SDK library

JavaScript / TypeScript
Python
C#

Show code (for browser)

// https://github.com/CapMonsterCloud/capmonster-nodejs-captcha-solver

import {
  CapMonsterCloudClientFactory,
  ClientOptions,
  BinanceRequest
} from "@zennolab_com/capmonstercloud-client";

document.addEventListener("DOMContentLoaded", async () => {

  const API_KEY = "YOUR_API_KEY"; // Specify your CapMonster Cloud API key

  const client = CapMonsterCloudClientFactory.Create(
    new ClientOptions({ clientKey: API_KEY })
  );

  // Basic example without proxy
  // CapMonster Cloud automatically uses its own proxies
  let binanceRequest = new BinanceRequest({
    websiteURL: "https://yourwebsite.com/page-with-binance-captcha",
    websiteKey: "your-website-key",
    validateId: "your-validate-id",
  });

  // Example using your proxy
  // Uncomment this block if you want to use your own proxy
  /*
  const proxy = {
    proxyType: "http",
    proxyAddress: "123.45.67.89",
    proxyPort: 8080,
    proxyLogin: "username",
    proxyPassword: "password",
  };

  binanceRequest = new BinanceRequest({
    websiteURL: "https://yourwebsite.com/page-with-binance-captcha",
    websiteKey: "your-website-key",
    validateId: "your-validate-id",
    proxy,
  });
  */

  // You can check your balance if necessary
  const balance = await client.getBalance();
  console.log("Balance:", balance);

  const result = await client.Solve(binanceRequest);
  console.log("Solution:", result.solution);
});

Show code (Node.js)

// https://github.com/CapMonsterCloud/capmonster-nodejs-captcha-solver

const {
  CapMonsterCloudClientFactory,
  ClientOptions,
  BinanceRequest,
} = require("@zennolab_com/capmonstercloud-client");

const API_KEY = "YOUR_API_KEY"; // Specify your CapMonster Cloud API key

async function solveBinanceCaptcha() {
  const client = CapMonsterCloudClientFactory.Create(
    new ClientOptions({ clientKey: API_KEY }),
  );

  // Basic example without proxy
  // CapMonster Cloud automatically uses its own proxies
  let binanceRequest = new BinanceRequest({
    websiteURL: "https://yourwebsite.com/page-with-binance-captcha",
    websiteKey: "your-website-key",
    validateId: "your-validate-id",
  });

  // Example using your proxy
  // Uncomment this block if you want to use your own proxy
  /*
  const proxy = {
    proxyType: "http",
    proxyAddress: "123.45.67.89",
    proxyPort: 8080,
    proxyLogin: "username",
    proxyPassword: "password",
  };

  binanceRequest = new BinanceRequest({
    websiteURL: "https://yourwebsite.com/page-with-binance-captcha",
    websiteKey: "your-website-key",
    validateId: "your-validate-id",
    proxy,
  });
  */

  // You can check your balance if necessary
  const balance = await client.getBalance();
  console.log("Balance:", balance);

  const result = await client.Solve(binanceRequest);
  console.log("Solution:", result.solution);
}

solveBinanceCaptcha().catch(console.error);

Show code

# https://github.com/CapMonsterCloud/capmonster-python-captcha-solver

import asyncio

from capmonstercloudclient import CapMonsterClient, ClientOptions
from capmonstercloudclient.requests import BinanceTaskRequest
# Import ProxyInfo if you plan to use your own proxy
from capmonstercloudclient.requests.proxy_info import ProxyInfo

API_KEY = "YOUR_API_KEY"  # Specify your CapMonster Cloud API key


async def solve_binance_captcha():
    client = CapMonsterClient(
        options=ClientOptions(api_key=API_KEY)
    )

    # Basic example without proxy
    # CapMonster Cloud automatically uses its own proxies
    binance_request = BinanceTaskRequest(
        websiteUrl="https://yourwebsite.com/page-with-binance-captcha",
        websiteKey="your-website-key",
        validateId="your-validate-id",
    )

    # Example using your proxy
    # Uncomment this block if you want to use your own proxy
    """
    proxy = ProxyInfo(
        proxyType="http",
        proxyAddress="123.45.67.89",
        proxyPort=8080,
        proxyLogin="username",
        proxyPassword="password",
    )

    binance_request = BinanceTaskRequest(
        websiteUrl="https://yourwebsite.com/page-with-binance-captcha",
        websiteKey="your-website-key",
        validateId="your-validate-id",
        proxy=proxy,
    )
    """

    # You can check your balance if necessary
    balance = await client.get_balance()
    print("Balance:", balance)

    result = await client.solve_captcha(binance_request)
    print("Solution:", result)


asyncio.run(solve_binance_captcha())

Show code

// https://github.com/CapMonsterCloud/capmonster-dotnet-captcha-solver

using System;
using System.Threading.Tasks;
using Zennolab.CapMonsterCloud;
using Zennolab.CapMonsterCloud.Requests;

class Program
{
    static async Task Main(string[] args)
    {
        // Specify your CapMonster Cloud API key
        var clientOptions = new ClientOptions
        {
            ClientKey = "YOUR_API_KEY"
        };

        var cmCloudClient = CapMonsterCloudClientFactory.Create(clientOptions);

        // Basic example without proxy
        // CapMonster Cloud automatically uses its own proxies
        var binanceRequest = new BinanceTaskRequest
        {
            WebsiteUrl = "https://yourwebsite.com/page-with-binance-captcha",
            WebsiteKey = "your-website-key",
            ValidateId = "your-validate-id",
            UserAgent = "userAgentPlaceholder"
        };

        // Example using your proxy
        // Uncomment this block if you want to use your own proxy
        /*
        binanceRequest = new BinanceTaskRequest
        {
            WebsiteUrl = "https://yourwebsite.com/page-with-binance-captcha",
            WebsiteKey = "your-website-key",
            ValidateId = "your-validate-id",
            UserAgent = "userAgentPlaceholder",

            Proxy = new ProxyContainer(
                "123.45.67.89",
                8080,
                ProxyType.Http,
                "username",
                "password"
            )
        };
        */

        // You can check your balance if necessary
        var balance = await cmCloudClient.GetBalanceAsync();
        Console.WriteLine("Balance: " + balance);

        var binanceResult = await cmCloudClient.SolveAsync(binanceRequest);
        Console.WriteLine("Solution: " + binanceResult.Solution.Value);
    }
}

Request parameters​

Create task method​

Get task result method​

How to get websiteKey and validateId​

Use the SDK library​

Request parameters

Create task method

Get task result method

How to get `websiteKey` and `validateId`

Use the SDK library