SellerMagnetAPI: Uncover Hidden Amazon Seller Performance Metrics

Using SellerMagnetAPI to Uncover Hidden Amazon Seller Performance Metrics

By Sarah Davis | August 10, 2025

Uncovering Hidden Amazon Seller Performance Metrics with SellerMagnetAPI

In the competitive world of Amazon, success hinges on data. Understanding your performance and the market dynamics is crucial for staying ahead. SellerMagnetAPI, your enterprise-grade Amazon data solution at https://sellermagnet-api.com, offers powerful tools to unlock hidden seller performance metrics and drive strategic decisions.

Why Seller Performance Metrics Matter

Amazon seller performance metrics provide valuable insights into product visibility, customer satisfaction, and competitive positioning. By tracking these metrics, you can:

  • Identify top-performing products and categories.
  • Optimize pricing strategies based on market trends.
  • Monitor competitor activities and benchmark your performance.
  • Improve inventory management and reduce stockouts.
  • Enhance customer experience and build brand loyalty.

Leveraging SellerMagnetAPI for Data-Driven Decisions

SellerMagnetAPI empowers businesses with access to a comprehensive suite of Amazon data points. Here's how you can use our API to uncover hidden seller performance metrics:

1. Track Product Sales Rank and Review Counts

The Amazon Product Statistics endpoint provides detailed information about a product's sales rank, review counts, and other key metrics over time. This data helps you assess product popularity and identify potential growth opportunities.

Endpoint: /amazon-product-statistics

Method: GET

Example Request:


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

Example Response:


{
 "success": true,
 "data": {
 "asin": "B08N5WRWNW",
 "amazonPrice": 2999,
 "bestSellerRank": 150,
 "buyBoxPrice": 3099,
 "buyBoxFulfillment": "FBA",
 "buyBoxSellerIdHistory": [
 [
 "2024-01-01T00:00:00",
 "A123456789012"
 ]
 ],
 "salesRankHistory": [
 [
 "2024-01-01T00:00:00",
 150
 ]
 ],
 "trackingSince": "2023-01-01",
 "graphs": null,
 "metadata": {
 "category": "Electronics",
 "lastUpdated": "2024-01-02T12:00:00"
 }
 }
}

2. Analyze Seller Reviews and Feedback

Understanding customer sentiment is vital for maintaining a positive brand image. Use the Get Amazon Seller Review endpoint to fetch detailed review data for specific sellers.

Endpoint: /amazon-seller-review

Method: GET

Example Request:


curl --location --request GET 'https://sellermagnet-api.com/amazon-seller-review?sellerId=A1B2C3D4E5F6G7&marketplaceId=A1PA6795UKMFR9&api_key=YOUR_API_KEY'

Example Response:


{
 "success": true,
 "data": {
 "marketplace": {
 "ATVPDKIKX0DER": {
 "last5Reviews": [
 {
 "dateRated": "By gary kraus on June 5, 2025.",
 "reviewText": "great",
 "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"
 }
}

3. Monitor Product Offers and Pricing

Staying competitive requires close monitoring of product offers and pricing. The Amazon Product Offers endpoint provides a comprehensive list of offers for a specific product, including price, seller, condition, and inventory details.

Endpoint: /amazon-product-offers

Method: GET

Example Request:


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

Example Response:


{
 "success": true,
 "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
 }
 ],
 "productLink": "https://www.amazon.com/dp/B0CL61F39H",
 "productMainImage": "https://m.media-amazon.com/images/I/31kTNmpm6vL.jpg",
 "productTitle": "PlayStation
5 console (slim)"
 }
}

4. Converting ASIN/EAN

Converting ASIN/EAN using Amazon ASIN/ISBN/EAN Converter endpoint. It's very useful when you deal with product cross-referencing.

Endpoint: /amazon-asin-converter

Method: GET

Example Request:


curl --location --request GET 'https://sellermagnet-api.com/amazon-asin-converter?asin=B0CLTBHXWQ&marketplaceId=A1PA6795UKMFR9&conversion_direction=asin-to-ean&api_key=YOUR_API_KEY'

Example Response:


{
 "data": {
 "asin": "B0CLTBHXWQ",
 "eanList": [
 "0711719577294"
 ],
 "listedSince": "2023-12-30 01:00:00",
 "productTitle": "Playstation 5 Console Edizione Digital Slim"
 },
 "success": true
}

5. Lookup Detailed Product Information

Lookup product information using Amazon Product Lookup endpoint. It's very useful when you deal with product deep-dive analysis.

Endpoint: /amazon-product-lookup

Method: GET

Example Request:


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, ASTROs 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"
 }
 ],
 "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, ASTROs 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"
 ],
 "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 Digital Edition (slim)"
 }
 }
 ],
 "videos": [
 "https://m.media-amazon.com/S/vse-vms-transcoding-artifact-us-east-1-prod/8af0ddf1-55f5-4e71-9463-39602c3edbae/default.jobtemplate.hls.m3u8"
 ]
 }
 },
 "success": true
}

6. Estimating Sales

Estimating sales using Amazon Product Estimate Sales endpoint. It helps to see potential product revenue.

Endpoint: /amazon-product-search-estimated-sells

Method: GET

Example Request:


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

Example Response:


{
 "data": {
 "asin": "B08N5WRWNW",
 "estimated_monthly_sales": 121
 },
 "success": true
}

Enhance Your Amazon Strategy Today

SellerMagnetAPI provides the tools and insights you need to succeed on Amazon. Sign up for a free trial today and start uncovering hidden seller performance metrics.

Explore our other features, including Amazon Bestsellers, Amazon Categories, and more.

Check Documentation and Code Examples for implementation information. Also, you can check the API Status page to confirm operationality.

Thumbnail will be auto-generated using SellerMagnet’s internal image generation API.

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