Analyzing Amazon Product Review Velocity with SellerMagnetAPI
In the competitive landscape of Amazon, understanding how quickly a product accumulates reviews—its review velocity—is crucial for businesses. High review velocity often correlates with increased visibility, higher sales, and improved customer trust. With SellerMagnetAPI, businesses and market analysts can effectively track and analyze this critical metric to gain a competitive edge. This blog post explores how to leverage SellerMagnetAPI to monitor review velocity for competitive analysis, inventory management, and market research.
Why Track Amazon Product Review Velocity?
Monitoring the rate at which a product receives reviews offers several key benefits:
- Competitive Analysis: Identify trending products and understand competitor strategies.
- Inventory Management: Anticipate demand spikes and optimize inventory levels.
- Market Research: Gauge customer sentiment and identify potential issues early.
Leveraging SellerMagnetAPI for Review Velocity Analysis
SellerMagnetAPI provides several endpoints that can be used to gather data for analyzing review velocity. Here are a few key endpoints and their applications:
1. Amazon Product Statistics
The Amazon Product Statistics endpoint allows you to retrieve detailed statistics for an Amazon product, including historical review counts. By tracking these counts over time, you can calculate the review velocity.
Endpoint: /amazon-product-statistics
Method: GET
Parameters:
asin(required): Product ASIN (e.g., "B08N5WRWNW")marketplaceId(required): Marketplace ID (e.g., "A1PA6795UKMFR9")api_key(required): Your API keygraphs(optional): Generate visually graphs for history data
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": "B0CLTBHXWQ",
"productTitle": "Playstation 5 Console Edizione Digital Slim",
"buyBoxPrice": 41800,
"buyBoxFulfillment": "FBM",
"buyBoxSellerIdHistory": [
[
"2025-06-14 17:08:00",
"A2I59UVTUWUFH0"
]
],
"categoryTree": [
{
"catId": 412603031,
"name": "Videogiochi"
},
{
"catId": 20904349031,
"name": "PlayStation 5"
},
{
"catId": 20904364031,
"name": "Console"
}
],
"graphs": {
"amazonAsSellerPriceHistory": "https://sellermagnet-api-webspace.s3.eu-central-1.amazonaws.com/amazon/api/charts/B0CLTBHXWQ/1749913774/B0CLTBHXWQ_amazon_price_1749913773.png",
"lowestFBAPriceHistory": "https://sellermagnet-api-webspace.s3.eu-central-1.amazonaws.com/amazon/api/charts/B0CLTBHXWQ/1749913776/B0CLTBHXWQ_fba_price_1749913773.png",
"lowestFBMPriceHistory": "https://sellermagnet-api-webspace.s3.eu-central-1.amazonaws.com/amazon/api/charts/B0CLTBHXWQ/1749913775/B0CLTBHXWQ_fbm_price_1749913773.png",
"monthlySoldHistory": "https://sellermagnet-api-webspace.s3.eu-central-1.amazonaws.com/amazon/api/charts/B0CLTBHXWQ/1749913778/B0CLTBHXWQ_monthly_sold_1749913773.png",
"productRatingHistory": "https://sellermagnet-api-webspace.s3.eu-central-1.amazonaws.com/amazon/api/charts/B0CLTBHXWQ/1749913777/B0CLTBHXWQ_rating_1749913773.png"
},
"listedSince": "2023-12-30 01:00:00",
"lowestFBAPrice": 44999,
"lowestFBMPrice": 41700,
"marketplaceId": "APJ6JRA9NG5V4",
"marketplaceNewPriceHistory": [
[
"2025-06-14",
41700
]
],
"offers": {
"A11IL2PNWYJU7H": {
"isFBA": true,
"lastUpdated": "2025-06-14 17:08:00",
"priceHistory": [
[
"2025-06-14 06:22:00",
44999,
0
]
],
"stockHistory": [
[
"2025-05-29 11:32:00",
1
]
]
},
"A12FLY25DT7QO0": {
"isFBA": false,
"lastUpdated": "2025-06-14 17:08:00",
"priceHistory": [
[
"2025-06-09 15:32:00",
41800,
0
]
],
"stockHistory": [
[
"2025-06-14 13:34:00",
49
]
]
},
"A18KSDUE00UP6J": {
"isFBA": false,
"lastUpdated": "2025-06-14 17:08:00",
"priceHistory": [
[
"2025-05-29 11:32:00",
42890,
0
]
],
"stockHistory": [
[
"2025-05-30 18:30:00",
3
]
]
}
},
"productReviewAverage": 4.7,
"productTotalReviews": 3129,
"rootCategory": {
"id": 412603031,
"name": "Videogiochi"
},
"stats": {
"amazonAsSellerPriceHistory": [
[
"2025-06-14",
44999
]
],
"buyBoxPriceHistory": [
[
"2025-06-13",
41700
]
],
"monthlySoldHistory": [
[
"2025-06",
1000
]
],
"productRatingCountHistory": [
[
"2025-06-14 15:28:00",
3129
]
],
"productRatingHistory": [
[
"2025-02-02 01:30:00",
4.7
]
],
"salesRankHistory": [
[
"2025-06-14 01:58:00",
15
]
]
}
},
"errors": null
}
By calling this endpoint periodically and storing the productTotalReviews, you can easily compute the number of reviews gained over a specific period.
2. Amazon Product Lookup
The Amazon Product Lookup endpoint provides comprehensive product information, including review metrics. While it doesn't offer historical data directly, it's valuable for understanding the current state of a product's reviews.
Endpoint: /amazon-product-lookup
Method: GET
Parameters:
asin(required): Product ASIN (e.g., 'B08N5WRWNW')marketplaceId(required): Marketplace ID (e.g., 'A1PA6795UKMFR9')api_key(required): Your API key
Example Request:
curl --location --request GET 'https://sellermagnet-api.com/amazon-product-lookup?asin=B08N5WRWNW&marketplaceId=A1PA6795UKMFR9&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\u2019s 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\u2019s 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\u00ae5 console (slim)",
"variations": [
{
"asin": "B0F6968Y5G",
"attributes": {
"Pattern Name": "PS5 w/ Black Ops Bundle",
"Style": "PlayStation\u00ae5 Digital Edition (slim)"
}
},
{
"asin": "B0CL5KNB9M",
"attributes": {
"Pattern Name": "PS5 Only",
"Style": "PlayStation\u00ae5 Digital Edition (slim)"
}
},
{
"asin": "B0CL61F39H",
"attributes": {
"Pattern Name": "PS5 Only",
"Style": "PlayStation\u00ae5 console (slim)"
}
},
{
"asin": "B0F691TJTP",
"attributes": {
"Pattern Name": "PS5 w/ Black Ops Bundle",
"Style": "PlayStation\u00ae5 console (slim)"
}
},
{
"asin": "B0FD54CGQ8",
"attributes": {
"Pattern Name": "PS5 w/ $100 PlayStation Store GC",
"Style": "PlayStation\u00ae5 Digital Edition (slim)"
}
},
{
"asin": "B0FD4WGVH5",
"attributes": {
"Pattern Name": "PS5 w/ $100 PlayStation Store GC",
"Style": "PlayStation\u00ae5 console (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",
"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
}
Use this endpoint in conjunction with Amazon Product Statistics to get a holistic view.
3. Amazon Seller Review
The Amazon Seller Review endpoint provides insights into seller performance based on customer reviews. Analyzing seller reviews alongside product reviews can offer a more complete understanding of market dynamics.
Endpoint: /amazon-seller-review
Method: GET
Parameters:
sellerId(required): Seller ID (e.g., "A1B2C3D4E5F6G7")marketplaceId(required): Marketplace ID (e.g., "A1PA6795UKMFR9")api_key(required): Your API key
Example Request:
curl --location --request GET 'https://sellermagnet-api.com/amazon-seller-review?sellerId=A1B2C3D4E5F6G7&marketplaceId=A1PA6795UKMFR9&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 Casta\u00f1eda 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
}
Practical Use Cases
Competitive Benchmarking
Compare the review velocity of your products against those of your competitors. This allows you to identify which products are gaining traction and understand potential market shifts. Use the Amazon Product Statistics endpoint to gather the necessary data.
Trend Identification
Monitor review velocity to spot emerging trends. A sudden increase in reviews might indicate a growing interest in a particular product or category. This can inform your product development and marketing strategies. Combine with Amazon Bestsellers to validate product viability.
Reputation Management
Track review velocity to identify and address negative feedback promptly. A sudden spike in negative reviews could signal a product defect or a decline in customer satisfaction. Early detection allows you to take corrective actions and protect your brand reputation. Use Amazon Seller Review in conjunction with product review data for a comprehensive view.
Best Practices for Monitoring Review Velocity with SellerMagnetAPI
- Automate Data Collection: Use DataPipeline to automate the retrieval of review data at regular intervals.
- Store Historical Data: Maintain a database of historical review counts to perform trend analysis.
- Visualize Data: Use data visualization tools to create charts and graphs that highlight changes in review velocity.
- Set Alerts: Implement alerts to notify you of significant changes in review velocity, both positive and negative.
Conclusion
Analyzing Amazon product review velocity is a powerful strategy for businesses looking to gain a competitive advantage. By leveraging SellerMagnetAPI, you can efficiently track and analyze this critical metric to inform your product, marketing, and inventory management decisions. Start using SellerMagnetAPI today to unlock valuable insights and drive your business forward. Consider using Amazon Product Estimate Sales with product review data to get an estimate of the product success rate.