Automated Amazon Competitor Monitoring with SellerMagnet API

Automating Amazon Competitor Monitoring with SellerMagnet API

By Michael Chen | July 10, 2025

Automating Amazon Competitor Monitoring with SellerMagnet API

In the fast-paced world of e-commerce, staying ahead of the competition on Amazon requires real-time insights and data-driven strategies. Manual competitor monitoring is time-consuming and prone to errors. Automating this process with SellerMagnet API empowers businesses to gain a significant competitive edge by providing accurate, reliable, and scalable data solutions.

Why Automate Amazon Competitor Monitoring?

Automating competitor monitoring offers several key benefits:

  • Real-Time Data: Access up-to-date information on pricing, inventory, and sales rank.
  • Scalability: Monitor hundreds or thousands of competitors effortlessly.
  • Accuracy: Eliminate human error and ensure data reliability.
  • Efficiency: Free up valuable time and resources for strategic decision-making.

Practical Use Cases with SellerMagnet API

Let's explore how you can leverage SellerMagnet API for various competitor monitoring scenarios.

1. Price Monitoring and Dynamic Pricing

Keeping track of competitor pricing is essential for maintaining profitability and market share. The Amazon Product Offers endpoint provides detailed pricing information, including the Buy Box price, shipping costs, and seller details. This allows you to adjust your pricing strategy dynamically to stay competitive.

curl --location --request GET 'https://sellermagnet-api.com/amazon-product-offers?asin=B0CL61F39H&marketplaceId=ATVPDKIKX0DER&api_key=YOUR_API_KEY'

Example Response:

{
  "data": {
    "asin": "B0CL61F39H",
    "buyBox": {
      "condition": "New",
      "deliveryDate": "2025-06-28",
      "fulfillmentType": "FBA",
      "inventory": 30,
      "positivePercentage": 0,
      "priceWithoutShipping": 499,
      "sellerId": "Amazon",
      "sellerName": "Amazon",
      "shippingPrice": 0,
      "totalPrice": 499,
      "totalReviews": 0
    },
    "currency": {
      "code": "USD",
      "name": "United States Dollar",
      "symbol": "$"
    },
    "marketplaceId": "ATVPDKIKX0DER",
    "offers": [
      {
        "condition": "New",
        "deliveryDate": "2025-06-28",
        "fulfillmentType": "FBA",
        "inventory": 30,
        "positivePercentage": 0,
        "priceWithoutShipping": 499,
        "sellerId": "Amazon",
        "sellerName": "Amazon",
        "shippingPrice": 0,
        "totalPrice": 499,
        "totalReviews": 0
      },
      {
        "condition": "Used - Very Good",
        "deliveryDate": "2025-07-07",
        "fulfillmentType": "FBM",
        "inventory": 10,
        "positivePercentage": 78,
        "priceWithoutShipping": 409.99,
        "sellerId": "A17J18A7XABQI9",
        "sellerName": "PRICE 2 SAVE",
        "shippingPrice": 0,
        "totalPrice": 409.99,
        "totalReviews": 6892
      },
      // More offers...
    ],
    "productLink": "https://www.amazon.com/dp/B0CL61F39H",
    "productMainImage": "https://m.media-amazon.com/images/I/31kTNmpm6vL.jpg",
    "productTitle": "PlayStation®5 console (slim)"
  },
  "success": true
}

2. Monitoring Sales Rank and Product Performance

Tracking the sales rank of competitor products provides insights into their performance and popularity. The Amazon Product Statistics endpoint delivers detailed statistics, including sales rank history and Buy Box information, enabling you to identify trends and react accordingly.

curl --location --request GET 'https://sellermagnet-api.com/amazon-product-statistics?asin=B0CL61F39H&marketplaceId=ATVPDKIKX0DER&api_key=YOUR_API_KEY'

Example Response:

{
  "success": true,
  "data": {
    "asin": "B0CL61F39H",
    "amazonPrice": 44499,
    "bestSellerRank": 31,
    "buyBoxPrice": 44499,
    "buyBoxFulfillment": "FBA",
    "buyBoxSellerIdHistory": [
      [
        "2025-06-14 17:08:00",
        "A3853PJW50SJG8"
      ]
    ],
    "salesRankHistory": [
      [
        "2025-06-14 17:08:00",
        31
      ]
    ],
    "trackingSince": "2023-12-10",
    "graphs": null,
    "metadata": null
  }
}

3. Gathering Seller Feedback and Reputation Analysis

Understanding the reputation of your competitors is crucial for assessing their trustworthiness and customer satisfaction levels. The Amazon Seller Review endpoint provides access to seller feedback, including recent reviews and overall ratings.

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

Example Response:

{
  "data": {
    "marketplace": {
      "ATVPDKIKX0DER": {
        "last5Reviews": [
          {
            "dateRated": "By gary kraus on June 5, 2025.",
            "reviewText": "great",
            "starRating": "5 out of 5 stars"
          },
          {
            "dateRated": "By Amazon Customer on June 5, 2025.",
            "reviewText": "Ok",
            "starRating": "5 out of 5 stars"
          },
          {
            "dateRated": "By Graciela Castañeda on May 21, 2025.",
            "reviewText": "Excelente",
            "starRating": "5 out of 5 stars"
          }
        ],
        "sellerFeedback": {
          "30": {
            "rating": "3.3",
            "reviewsCount": "7"
          },
          "90": {
            "rating": "3.6",
            "reviewsCount": "30"
          },
          "365": {
            "rating": "3.9",
            "reviewsCount": "114"
          },
          "lifetime": {
            "rating": "4.5",
            "reviewsCount": "1,535"
          }
        }
      }
    },
    "sellerId": "A1CWSGXIR635I6"
  },
  "success": true
}

4. Discovering Product Information and Variations

The Amazon Product Lookup endpoint provides comprehensive product information, including specifications, descriptions, and variations. This is invaluable for understanding competitor product offerings and identifying potential gaps in the market.

curl --location --request GET 'https://sellermagnet-api.com/amazon-product-lookup?asin=B0CL61F39H&marketplaceId=ATVPDKIKX0DER&api_key=YOUR_API_KEY'

Example Response:

{
  "data": {
    "productInfo": {
      "additionalDetails": {
        "ASIN": "B0CL61F39H",
        "Batteries": "1 Lithium Ion batteries required. (included)",
        "Best Sellers Rank": "Nr. 31 in Video Games Nr. 1 in PlayStation 5 Consoles",
        "Customer Rating": "4.7 out of 5 stars",
        "Date First Available": "December 10, 2023",
        "Item Weight": "10.6 pounds",
        "Item model number": "CFI-2015",
        "Manufacturer": "Sony",
        "Number of Reviews": "7,092 ratings",
        "Product Dimensions": "14 x 17 x 7 inches; 10.6 Pounds",
        "Release date": "December 10, 2023",
        "Type of item": "Video Game"
      },
      "asin": "B0CL61F39H",
      "bestsellerRanks": {
        "main_category": {
          "name": "Video Games",
          "rank": 31
        },
        "subcategory": {
          "name": "PlayStation",
          "rank": 1
        }
      },
      "bulletPoints": [
        "Model Number CFI-2000",
        "Includes DualSense Wireless Controller, 1TB SSD, Disc Drive, 2 Horizontal Stand Feet, HDMI Cable, AC power cord, USB cable, printed materials, ASTRO’s PLAYROOM (Pre-installed game)",
        "Vertical Stand sold separately"
      ],
      "buyBoxInfo": {
        "currencyCode": "USD",
        "currencyName": "United States Dollar",
        "currencySymbol": "$",
        "price": 444.99,
        "sellerId": "A3853PJW50SJG8"
      },
      "categories": {
        "bestsellerCategory": [
          {
            "id": "20972781011",
            "index": 1,
            "name": "PlayStation 5",
            "url": "https://www.amazon.com/b/ref=dp_bc_2?ie=UTF8&node=20972781011"
          },
          {
            "id": "20972796011",
            "index": 2,
            "name": "Consoles",
            "url": "https://www.amazon.com/b/ref=dp_bc_3?ie=UTF8&node=20972796011"
          }
        ],
        "rootCategory": {
          "id": "468642",
          "name": "Video Games",
          "url": "https://www.amazon.com/computer-video-games-hardware-accessories/b/ref=dp_bc_1?ie=UTF8&node=468642"
        }
      },
      "description": [
        "Model Number CFI-2000",
        "Includes DualSense Wireless Controller, 1TB SSD, Disc Drive, 2 Horizontal Stand Feet, HDMI Cable, AC power cord, USB cable, printed materials, ASTRO’s PLAYROOM (Pre-installed game)",
        "Vertical Stand sold separately",
        "The PS5 console unleashes new gaming possibilities that you never anticipated. Experience lightning fast loading with an ultra-high speed SSD, deeper immersion with support for haptic feedback, adaptive triggers, and 3D Audio*, and an all-new generation of incredible PlayStation games. Lightning Speed - Harness the power of a custom CPU, GPU, and SSD with Integrated I/O that rewrite the rules of what a PlayStation console can do. Stunning Games - Marvel at incredible graphics and experience new PS5 features. Play a back catalog of supported PS4 games. Breathtaking Immersion - Discover a deeper gaming experience with support for haptic feedback, adaptive triggers, and 3D Audio technology. Vertical stand sold separately. *3D audio via built-in TV speakers or analog/USB stereo headphones. Set up and latest system software update required."
      ],
      "details": {
        "ASIN": "B0CL61F39H",
        "Batteries": "1 Lithium Ion batteries required. (included)",
        "Date First Available": "December 10, 2023",
        "Item Weight": "10.6 pounds",
        "Item model number": "CFI-2015",
        "Manufacturer": "Sony",
        "Platform": "PlayStation 5",
        "Product Dimensions": "14 x 17 x 7 inches; 10.6 Pounds",
        "Release date": "December 10, 2023",
        "Type of item": "Video Game"
      },
      "hasAPlusContent": true,
      "images": [
        "https://m.media-amazon.com/images/I/41ECK5cY-2L._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/41srF-iY93L._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/41tVr19I3zL._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/41HMaO9jO3L._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/61e8hPmeoYL._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/61Gj1Kc5R5L._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/61r6PutKGwL._SL1000_.jpg",
        "https://m.media-amazon.com/images/I/717Id5h1fhL._SL1000_.jpg"
      ],
      "link": "https://www.amazon.com/dp/B0CL61F39H",
      "listedSinceDate": "2023-12-10",
      "mainImage": "https://m.media-amazon.com/images/I/31kTNmpm6vL.jpg",
      "marketplaceId": "ATVPDKIKX0DER",
      "reviews": {
        "averageRating": 4.7,
        "reviewSummary": "4.7 out of 5 stars",
        "totalReviews": 7092
      },
      "title": "PlayStation®5 console (slim)",
      "variations": [
        {
          "asin": "B0F6968Y5G",
          "attributes": {
            "Pattern Name": "PS5 w/ Black Ops Bundle",
            "Style": "PlayStation®5 Digital Edition (slim)"
          }
        },
        {
          "asin": "B0CL5KNB9M",
          "attributes": {
            "Pattern Name": "PS5 Only",
            "Style": "PlayStation®5 Digital Edition (slim)"
          }
        },
        {
          "asin": "B0CL61F39H",
          "attributes": {
            "Pattern Name": "PS5 Only",
            "Style": "PlayStation®5 console (slim)"
          }
        },
       // More Variations...
      ],
      "videos": [
        "https://m.media-amazon.com/S/vse-vms-transcoding-artifact-us-east-1-prod/8af0ddf1-55f5-4e71-9463-39602c3edbae/default.jobtemplate.hls.m3u8",
        "https://m.media-amazon.com/S/vse-vms-transcoding-artifact-us-east-1-prod/50938d5c-2a9b-427a-b766-21b7cd63502e/default.jobtemplate.hls.m3u8"
      ]
    }
  },
  "success": true
}

Enhance Your Strategy with SellerMagnet API

SellerMagnet API offers a suite of powerful tools to enhance your Amazon strategy:

Getting Started with SellerMagnet API

Ready to automate your Amazon competitor monitoring? Here’s how to get started:

  1. Visit SellerMagnet API.
  2. Sign up for a free trial or choose a pricing plan that suits your needs.
  3. Explore the Documentation and Code Examples to learn how to use the API endpoints.
  4. Start automating your competitor monitoring and gaining valuable insights into the Amazon marketplace.

Automating Amazon competitor monitoring with SellerMagnet API is a game-changer for businesses looking to thrive in the competitive e-commerce landscape. By leveraging real-time data, accurate insights, and scalable solutions, you can make informed decisions, optimize your strategies, and stay ahead of the curve.

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