Skip to main content

​
Introduction

Image2Text is a captcha service provided by Ace Data Cloud for image captcha recognition. Through the unified API of Ace Data Cloud, you can quickly integrate Image2Text using JavaScript to achieve image captcha recognition, Base64 input, URL input, and other functions.

​
Prerequisites

  • Have an Ace Data Cloud account and obtain an API Token
  • Node.js 18+ or a modern browser environment

​
Basic Usage

The main endpoint to call the Image2Text API is: 
POST https://api.acedata.cloud/captcha/recognition/image2text
Complete JavaScript code example: 
const response = await fetch("https://api.acedata.cloud/captcha/recognition/image2text", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUg..."
}),
});

const result = await response.json();
console.log(result);
Please replace YOUR_API_TOKEN with the actual Token you obtained from the Ace Data Cloud platform.

​
Response Handling

It is recommended to check the response status code and handle errors: 
if (response.ok) {
  const result = await response.json();
  console.log("Call succeeded:", result);
} else {
  console.error(`Call failed, status code: ${response.status}`);
  const error = await response.text();
  console.error(error);
}

​
Node.js Wrapper

It is recommended to encapsulate it as a reusable function: 
async function callImage2Text(data) {
  const response = await fetch("https://api.acedata.cloud/captcha/recognition/image2text", {
    method: "POST",
    headers: {
      "Authorization": `Bearer ${process.env.ACE_API_TOKEN}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify(data),
  });
  if (!response.ok) throw new Error(`API error: ${response.status}`);
  return response.json();
}

​
Error Handling

Common error codes:
Status CodeDescription
401Authentication failed, please check API Token
403Insufficient balance or no access rights
429Request rate limit exceeded
500Internal server error

​
Next Steps