Introduction

OMOCaptcha provides a captcha-solving API for dozens of popular captcha types: reCAPTCHA, hCaptcha, FunCaptcha, GeeTest, TikTok, Shopee, Zalo, Amazon, Tencent, and more.

Quick start

Add funds

Top up your account or purchase a combo package.

Integrate the API

Integrate the API into your app using the docs below.

Main endpoints

API base URL:

https://api.omocaptcha.com

Endpoint	Description
`POST /v2/createTask`	Create a new captcha task
`POST /v2/getTaskResult`	Retrieve the task result
`POST /v2/getBalance`	Check account balance
`POST /v2/getAccountInfo`	Detailed account information
`POST /v2/getMyPackages`	List purchased packages
`POST /v2/getServicePrice`	Captcha types + prices (defaults to `type:"service"`; pass `type:"package"` for combo packages)

Response convention

All endpoints return HTTP 200 with a standard error envelope (errorId marks success/failure):

{
  "errorId": 0,
  "errorCode": "",
  "errorDescription": "",
  // ... other endpoint-specific fields
}

errorId: 0 — success
errorId: 1 — business error, read errorCode for classification

See the Error codes page for details on each errorCode.

Authentication

Most endpoints require your API key in the request body under clientKey:

{
  "clientKey": "OMO_API_KEY"
}

Public (no auth) endpoint: /v2/getServicePrice

type:"service" → individual captcha types
type:"package" → combo packages

Security

Each task can only be retrieved with the exact API key that created it (key binding). A mismatched key returns ERROR_TASK_KEY_MISMATCH.

API keys must be 10–80 characters long
Keys that are too short or too long are rejected immediately on request

Tài liệu API

Hướng dẫn

Quick start

Main endpoints

Response convention

Authentication

Security

​Quick start

​Main endpoints

​Response convention

​Authentication

​Security

Quick start

Main endpoints

Response convention

Authentication

Security