Amazon Captcha

Overview

Amazon Captcha is an authentication system used by Amazon to protect their websites from bots and automated activities. This is a specially distorted text captcha that only appears on Amazon systems.

🛒

Amazon Captcha typically appears during login, product searches, or when Amazon detects unusual behavior from your IP address.

Amazon Captcha

1. Create Request

Request

POST https://api.achicaptcha.com/createTask

Parameters

Parameter name	Data type	Required?	Description
`clientKey`	string	yes	Api key
`task.type`	string	yes	ImageToTextTask
`task.image`	string	yes	base64 of Amazon captcha image
`task.subType`	string	yes	amazon

Request Example

POST /createTask HTTP/1.1
Host: api.achicaptcha.com
Content-Type: application/json
 
{
  "clientKey": "YOUR_API_KEY",
  "task": {
    "type": "ImageToTextTask",
    "image": "base64 encoded Amazon captcha image",
    "subType": "amazon"
  }
}

Response

On success, server returns errorId = 0 and taskId

{
  "errorId": 0,
  "taskId": "f2fc70d6-c76b-4fba-9480-205ac1fe9fb9"
}

2. Get Result

Request

POST https://api.achicaptcha.com/getTaskResult

Parameters

Parameter name	Data type	Required?	Description
`clientKey`	string	yes	Api key
`taskId`	string	yes	TaskId from (1)

Request Example

POST /getTaskResult HTTP/1.1
Host: api.achicaptcha.com
Content-Type: application/json
 
{
  "clientKey": "YOUR_API_KEY",
  "taskId": "f2fc70d6-c76b-4fba-9480-205ac1fe9fb9"
}

Response

{
  "errorId": 0,
  "status": "ready",
  "solution": "KCXM8P"
}

Status Explanation

errorId = 0 and status = ready: Solved successfully, read result in solution
errorId = 0 and status = processing: Solving captcha, wait 2 seconds and try again
errorId > 0: System error, returns error code and description

Integration Examples

import requests
import time
import base64
 
def solve_amazon_captcha(image_path, api_key='YOUR_API_KEY'):
    # Read and encode image
    with open(image_path, 'rb') as image_file:
        image_base64 = base64.b64encode(image_file.read()).decode('utf-8')
    
    # Step 1: Create task
    create_task_url = 'https://api.achicaptcha.com/createTask'
    create_task_payload = {
        'clientKey': api_key,
        'task': {
            'type': 'ImageToTextTask',
            'image': image_base64,
            'subType': 'amazon'
        }
    }
    
    response = requests.post(create_task_url, json=create_task_payload)
    result = response.json()
    
    if result['errorId'] != 0:
        raise Exception(result['errorDescription'])
    
    task_id = result['taskId']
    
    # Step 2: Get result
    get_result_url = 'https://api.achicaptcha.com/getTaskResult'
    
    while True:
        time.sleep(2)  # Wait 2 seconds
        
        get_result_payload = {
            'clientKey': api_key,
            'taskId': task_id
        }
        
        response = requests.post(get_result_url, json=get_result_payload)
        result = response.json()
        
        if result['errorId'] != 0:
            raise Exception(result['errorDescription'])
        
        if result['status'] == 'ready':
            return result['solution']
        
        # If status == 'processing', continue loop
 
# Usage
solution = solve_amazon_captcha('amazon_captcha.png', 'YOUR_API_KEY')
print('Amazon captcha result:', solution)

Common Error Codes

Error Code	Description	Notes
0	success	Success
1	processing	Processing
2	missing required fields	Missing required field, check parameters again
3	task not supported	Task type not supported
4	task creation failed	Task creation failed
5	client key does not exist	API key does not exist, check API key again
6	insufficient account balance	Insufficient account balance, top up credits
7	task failed, please create a new task	Task failed, please create a new task
8	task ID does not exist	Task ID does not exist

Best Practices

To achieve the best results when using Achicaptcha API, follow these principles:

1. Image Quality

Use high-resolution images
Ensure images are not overly blurred or noisy
Capture or crop the correct Amazon captcha area

2. Polling Interval

Wait at least 2 seconds between result checks
Don't spam the API with too many consecutive requests
Have a timeout to avoid infinite loops

3. Retry Logic

Implement retry for temporary errors like ERROR_NO_SLOT_AVAILABLE
Use exponential backoff when retrying
Limit maximum number of retries

4. API Key Security

Don't hardcode API key in code
Use environment variables
Don't expose API key on client-side

Useful Links:

Text Captcha Facebook Captcha