xCaptcha Solver API

Solve xCaptcha challenges automatically using AI-powered Siamese Neural Networks with 97% accuracy in <1 second.

⚡ High-Speed AI Model: xCaptcha is processed using Siamese shape-matching models trained on 9-crop shape patterns for ultra-fast, 97.0% accurate cell prediction.

Endpoint Information

POST https://captchakings.com/api/xcaptcha.php

Headers

Content-Type: application/json or multipart/form-data
Authorization: Bearer YOUR_API_KEY

Request Parameters

Parameter	Type	Description
`image_base64`	string	Base64 encoded string of the xCaptcha challenge image.
`api_key`	string	Your CaptchaKings API key (optional if Authorization header is set).

JSON Response

{
  "success": true,
  "buttons_to_click": [8, 1],
  "billing": {
    "amount_charged": "0.001000",
    "balance_remaining": "14.500000",
    "plan": "pay_as_you_go"
  },
  "processing_time": "0.42s"
}

2Captcha Protocol Compatibility (in.php / res.php)

You can also use standard 2Captcha endpoints:

Submit Task: POST https://captchakings.com/in.php?key=YOUR_API_KEY&method=xcaptcha&body=BASE64_STRING&json=1
Get Result: GET https://captchakings.com/res.php?key=YOUR_API_KEY&action=get&id=TASK_ID&json=1

cURL Example

curl -X POST https://captchakings.com/api/xcaptcha.php \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"image_base64": "iVBORw0KGgoAAAANSUhEUgAA..."}'