Detect Amazon Hijackers with SellerMagnet API

How to Detect Amazon Hijackers: A DIY Script

By Sarah Davis | July 04, 2025

How to Detect Amazon Hijackers: A DIY Script for E-commerce Businesses

For e-commerce businesses and market analysts, maintaining the integrity of product listings on Amazon is crucial. Product hijackers can significantly impact sales, brand reputation, and customer trust. This post guides you through creating a DIY script using SellerMagnet’s API to detect potential hijackers. The blog post thumbnail will be auto-generated using SellerMagnet’s internal image generation API.

Understanding the Threat of Amazon Hijackers

Product hijacking occurs when unauthorized sellers list counterfeit, inferior, or used products under your original listing. This can lead to customer dissatisfaction, negative reviews, and a loss of sales. Early detection is key to mitigating these risks.

Building Your Hijacker Detection Script with SellerMagnet's API

This script will leverage SellerMagnet's Amazon Product Offers API to monitor sellers listing your products. By regularly checking the sellers and their details, you can identify unauthorized listings.

Step 1: Setting Up Your Environment

Ensure you have Python installed and the requests library for making HTTP requests. You can install it using pip:


pip install requests

Step 2: Retrieving Amazon Product Offers

Use SellerMagnet’s Amazon Product Offers endpoint to get a list of sellers for a specific product (ASIN). Here’s how you can do it using a curl request:


curl --location --request GET 'https://sellermagnet-api.com/amazon-product-offers?asin=B08N5WRWNW&marketplaceId=A1PA6795UKMFR9&api_key=YOUR_API_KEY'

Here's a Python script to accomplish the same:


import requests

api_key = 'YOUR_API_KEY'
asin = 'B08N5WRWNW'
marketplace_id = 'A1PA6795UKMFR9'

url = f'https://sellermagnet-api.com/amazon-product-offers?asin={asin}&marketplaceId={marketplace_id}&api_key={api_key}'

response = requests.get(url)
data = response.json()

if data['success']:
    offers = data['data']['offers']
    print("Offers:", offers)
else:
    print("Error:", data['errors'])

Example Response:


{
  "data": {
    "asin": "B08N5WRWNW",
    "buyBox": {
      "condition": "New",
      "deliveryDate": "2024-07-08",
      "fulfillmentType": "FBA",
      "inventory": 10,
      "positivePercentage": 95,
      "priceWithoutShipping": 29.99,
      "sellerId": "A123456789XYZ",
      "sellerName": "Example Seller",
      "shippingPrice": 0.00,
      "totalPrice": 29.99,
      "totalReviews": 1000
    },
    "currency": {
      "code": "USD",
      "name": "United States Dollar",
      "symbol": "$"
    },
    "marketplaceId": "ATVPDKIKX0DER",
    "offers": [
      {
        "condition": "New",
        "deliveryDate": "2024-07-08",
        "fulfillmentType": "FBA",
        "inventory": 10,
        "positivePercentage": 95,
        "priceWithoutShipping": 29.99,
        "sellerId": "A123456789XYZ",
        "sellerName": "Example Seller",
        "shippingPrice": 0.00,
        "totalPrice": 29.99,
        "totalReviews": 1000
      }
    ],
    "productLink": "https://www.amazon.com/dp/B08N5WRWNW",
    "productMainImage": "https://m.media-amazon.com/images/I/1234567890._AC_UL200_.jpg",
    "productTitle": "Example Product Title"
  },
  "success": true
}

Step 3: Analyzing Seller Data

Compare the seller IDs from the API response with your authorized seller list. If a seller ID is not on your list, it could indicate a potential hijacker.


import requests

api_key = 'YOUR_API_KEY'
asin = 'B08N5WRWNW'
marketplace_id = 'A1PA6795UKMFR9'
authorized_sellers = ['A123456789XYZ'] # Replace with your authorized seller IDs

url = f'https://sellermagnet-api.com/amazon-product-offers?asin={asin}&marketplaceId={marketplace_id}&api_key={api_key}'

response = requests.get(url)
data = response.json()

if data['success']:
    offers = data['data']['offers']
    for offer in offers:
        seller_id = offer['sellerId']
        if seller_id not in authorized_sellers and seller_id != 'Amazon':
            print(f"Potential hijacker detected: Seller ID - {seller_id}")
else:
    print("Error:", data['errors'])

Step 4: Automating the Detection Process

To automate hijacker detection, schedule your script to run regularly using a task scheduler or cron job. This proactive approach helps you quickly identify and address potential threats.

Step 5: Enhancing Detection with Additional SellerMagnet APIs

Leverage other SellerMagnet APIs to gather more seller details for enhanced detection:

Here is an example of retreiving seller review:


curl --location --request GET 'https://sellermagnet-api.com/amazon-seller-review?sellerId=A1CWSGXIR635I6&marketplaceId=ATVPDKIKX0DER&api_key=YOUR_API_KEY'

Here is an example of retrieving the statistics:


curl --location --request GET 'https://sellermagnet-api.com/amazon-product-statistics?asin=B0CLTBHXWQ&marketplaceId=APJ6JRA9NG5V4&api_key=YOUR_API_KEY'

Benefits of Using SellerMagnet’s API

  • Real-time Data: Access up-to-date information on product listings and seller details.
  • Scalability: Efficiently monitor a large number of products and sellers.
  • Accuracy: Reliable data to make informed decisions.
  • Efficiency: Automate tasks for checking products offers and identify unauthorized sellers

Additional Use Cases for SellerMagnet’s API

  • Competitive Analysis: Monitor competitor pricing and seller strategies.
  • Inventory Management: Track product availability and sales trends.
  • Market Research: Identify trending products and emerging market opportunities.

Stay Ahead of Hijackers with Proactive Monitoring

By implementing a DIY script using SellerMagnet’s API, you can proactively protect your Amazon product listings from hijackers. Regular monitoring, combined with quick action against unauthorized sellers, will help maintain your brand integrity and ensure customer satisfaction. For more advanced features and comprehensive data solutions, explore SellerMagnet’s full suite of APIs and pricing options.

Remember to consult the Documentation for detailed information on API usage and parameters. Visit the Code Examples page for more practical implementations, and check the API Status page for real-time updates. You can also find useful information in our Blog and Glossary.

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