Developer Documentation

The EZCaptcha API provides a high-performance interface for programmatically bypassing CAPTCHA challenges. Designed for scalability, our system handles millions of concurrent requests with industry-leading uptime.

Base URL

https://api.ezxlabs.com/v1

Security Note All requests must be made over HTTPS. Requests over plain HTTP will be rejected.

Authentication

We use a simple API Key mechanism. You must include your clientKey in the JSON body of every POST request.

{
  "clientKey": "YOUR_SECRET_API_KEY_HERE",
  "task": { ... }
}

Error Handling

The API uses standard HTTP response codes. If errorId is 0, the request was successful.

Error ID	Description	Action
0	Success	Proceed with result
1001	Invalid clientKey	Check credentials
1002	Zero balance	Top up account

ReCaptcha V2

Solves Google ReCaptcha V2 (checkbox). Supports both proxyless and proxy modes.

{
  "clientKey": "YOUR_API_KEY",
  "task": {
    "type": "RecaptchaV2TaskProxyless",
    "websiteURL": "https://example.com",
    "websiteKey": "6Le-wvkSAAAA..."
  }
}

ReCaptcha V3

Solves ReCaptcha V3 and returns a token with a high human score (0.7-0.9).

FunCaptcha

Solves Arkose Labs FunCaptcha (rotating animals, etc).

Cloudflare Turnstile

Bypasses Cloudflare Turnstile non-interactive and interactive challenges.

HCaptcha

Solves HCaptcha images challenges.

ImageToText

Solves standard alphanumeric images using AI Object Character Recognition.