funsolver

Documentation

API reference and integration guide

OverviewFunCaptchaFunCaptcha ProxylessFunCaptcha BDACastlereCAPTCHA v2reCAPTCHA v2 EnterprisereCAPTCHA v3reCAPTCHA v3 EnterpriseTurnstilehCaptchaCloudflareImage→TextMath ImageFC ClassificationDataDome

Math Image (OCR + eval)

Arithmetic-on-image captcha ("6 × 3 = ?"). solution.text is the computed number — submit it verbatim. Supported operators: +, −, × (×, *, x, X), / (/, :).

Price per 1000 successful solves:$0.50 / 1k

task parameters

HTTP
POST https://api.funsolver.com/createTask
Content-Type: application/json

{
  "clientKey": "fsk_abc...",
  "task": {
    "type": "MathImageTask",
    "image": "<base64-JPEG-or-PNG>"
  }
}
type
stringrequired
"MathImageTask"
image
stringrequired
Captcha image as base64 (JPEG or PNG), without the data: prefix. Crop to just the captcha area when possible — full-page screenshots are noisier.

getTaskResult response

JSON
{
  "errorId": 0,
  "status": "ready",
  "solution": {
    "text": "18"
  },
  "processingTime": 0.2
}

solution.text is the evaluated answer. If the image showed "6×3", we return "18", not "6x3".

Spotted an error? Tell support.
For AI agents: machine-readable reference — /llms.txt