VK captcha solver

We offer two methods to solve this type of captcha - token-based and image-based.

Image-based method specification

We use the body (image in base64 format) or file (image as file) and steps parameters.
You can get both values from the response to the request
https://api.vk.com/method/captchaNotRobot.getContent?v={API_VER}
when loading the captcha widget on the page.

Parameter	Type	Required	Description
key	String	Yes	your API key
method	String	Yes	vkimage
file	String	Yes	Captcha image as file. The request must include body or file.
body	String	Yes	Base64-encoded captcha image. The request must include body or file.
steps	String	Yes	Array of steps
json	Integer	No	Set to 1 to get the response as JSON. Default: 0

Request example

Endpoint: https://solvecaptcha.com/in.php
Method: POST

{
  "key": "YOUR_API_KEY",
  "method": "vkimage",
  "body": "/9j/4AAQSkZJRgABAQEAYABgAAD/2wBDAAUGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0aHBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL...",
  "steps": "[7,18,13,15,5,6,9,10,22,24,13,22,4,12,15,7,3,5,7....10,12,9,6,3,14,1,17,15,18,5,18,19,20,21,15,9,21,11,18,6,22,23,7]",
  "json": 1
}

The query will return the ID of your captcha, which should be used to get the result.

Getting the result

Request example

Endpoint: https://solvecaptcha.com/res.php
Method: GET

{
  "key": "YOUR_API_KEY",
  "action": "get",
  "id": 2053847348,
  "json": 1
}

Result example

{
  "status": 1,
  "request": {
    "best_step": 24,
    "preview": "/9j/4AAQSkZJRgABAQEASABIAAD/...NDL/2Q==",
    "solution": [
      21,
      3,
      9,
      ...,
      13,
      0,
      22,
      10,
      16
    ],
    "answer": "eyJ2YWx1ZSI6WzIxLDMsOSw1LDIsMTQsMTgsNywyMCw2LDE1LDEsMTEsMjMsMTksNCwxNyw4LDEzLDAsMjIsMTAsMTZdLCJ2ZXIiOjF9"
  }
}

best_step - the number of steps you need to pass to solve the captcha, you can use this value to move the slider
solution - the list of steps passed to solve the captcha
answer - the solution in proper API format, use it to interact with the target website API
preview - the base64 image showing the result of performing steps from the solution

Token-based method specification

Token-based method requires redirect_uri parameter, as well as proxy and userAgent. The value of the redirect_uri parameter can be found in the response to requests to the VK API that return captchas.

Parameter	Type	Required	Description
key	String	Yes	your API key
method	String	Yes	vkcaptcha
redirect_uri	String	Yes	The URL that is returned on requests to the captcha API.
userAgent	String	Yes	Your User-Agent that will be passed to our worker and used to solve the captcha.
proxy	String	Yes	Your proxy: login:[email protected]:3128 You can find more info about proxies here
proxytype	String	Yes	Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json	Integer	No	Set to 1 to get the response as JSON. Default: 0

Request example

Endpoint: https://solvecaptcha.com/in.php
Method: POST

{
  "type": "vkcaptcha",
  "redirect_uri": "https://id.vk.com/not_robot_captcha?domain=vk.com&session_token=ey....p2c0Nn&variant=popup&blank=1",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36",
  "proxyType": "http",
  "proxyAddress": "1.2.3.4",
  "proxyPort": "8080",
  "proxyLogin": "proxyUser71",
  "proxyPassword": "x7$Pq2mL"
}

The query will return the ID of your captcha, which should be used to get the result.

Getting the result

Request example

Endpoint: https://solvecaptcha.com/res.php
Method: POST

{
  "key": "YOUR_API_KEY",
  "id": 2031767958
}

Result example

{
  "errorId": 0,
  "status": "ready",
  "solution": {
    "token": "eyJhbGc...1JcZuE5FgT"
  },
  "cost": "0.00138",
  "ip": "91.210.168.54",
  "createTime": 1754567219,
  "endTime": 1754567231,
  "solveCount": 1
}

Use the token to interact with the target website.