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reCAPTCHA V3
reCAPTCHA V3 is the newest type of captcha from Google. It has no challenge so there is no need for user interaction. Instead it uses a "humanity" rating - score.
reCAPTCHA V3 technically is quite similar to reCAPTCHA V2: customer receives a token from reCAPTCHA API which is then sent inside a POST request to the target website and verified via reCAPTCHA API.
The difference is now reCAPTCHA API returns rating of a user detecting whether he was a real human or a bot. This rating is called score and could be a number from 0.1 to 0.9. This score is passed to the website which then decides what to do with the user request.
Also there is a new parameter action allowing to process user actions on the website differently. After the verification of token reCAPTCHA API returns the name of the action user performed.

1. CREATE TASK

Request

POST https://api.anycaptcha.com/createTask
property
type
required
desc
clientKey
text
yes
client account key, can be found hereโ€‹
task.type
text
yes
RecaptchaV3TaskProxyless
task.websiteURL
text
yes
Address of a target web page. Can be located anywhere on the web site, even in a member area. Our workers don't navigate there but simulate the visit instead
task.websiteKey
text
yes
Recaptcha website key. Learn how to find it in this article.
task.minScore
double
yes
Filters workers with a particular score. It can have one of the following values: 0.3 0.7 0.9
task.pageAction
text
no
Recaptcha's "action" value. Website owners use this parameter to define what users are doing on the page. Example:
grecaptcha.execute('site_key', {action:'login_test'})
task.isEnterprise
bool
no
Set this flag to "true" if you need this V3 solved with Enterprise API. Default value is "false" and Recaptcha is solved with non-enterprise API. Can be determined by a javascript call like in the following example:
grecaptcha.enterprise.execute('site_key', {..})
POST /createTask HTTP/1.1
Host: api.anycaptcha.com
Content-Type: application/json
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{
"clientKey": "YOUR_API_KEY",
"task": {
"type": "RecaptchaV3TaskProxyless",
"websiteURL": "http://mywebsite.com/recaptcha/test.php",
"websiteKey": "6Lc_aCMTAAAAABx7u2N0D1XnVbI_v6ZdbM6rYf16",
"minScore": 0.3,
"pageAction": "verify",
"isEnterprise": false
}
}

Response

success
error
server will return errorId = 0 and taskId for success
{
"errorId": 0,
"taskId": 123456
}
server will return errorId > 0 and errorCode
{
"errorId": 1,
"errorCode": "ERROR_KEY_DOES_NOT_EXIST",
"errorDescription": "ERROR_KEY_DOES_NOT_EXIST"
}
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2. GET TASK RESULT

Request

POST https://api.anycaptcha.com/getTaskResult
name
type
required
description
clientKey
text
yes
client account key, can be found hereโ€‹
taskId
number
yes
the taskId
POST /getTaskResult HTTP/1.1
Host: api.anycaptcha.com
Content-Type: application/json
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{
"clientKey": "YOUR_API_KEY",
"taskId": 123456
}

Response

success
processing
error
{
"errorId": 0,
"status": "ready",
"solution": {
"gRecaptchaResponse": "3AHJ_VuvYIBNBW5yyv0zRYJ75VkOKvhKj9_xGBJKnQim...."
}
}
{
"errorId": 0,
"status": "processing"
}
{
"errorId": 1,
"errorCode": "ERROR_CAPTCHA_UNSOLVABLE",
"errorDescription": "ERROR_CAPTCHA_UNSOLVABLE"
}
  • errorId = 0 and status = ready : Solved successfully, read result in solution.gRecaptchaResponse
  • errorId = 0 and status = processing: The task is not ready yet, sleep 2s then remake
  • errorId > 0: error identifier. Error code and short description transferred in errorCode and errorDescription properties
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