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Customer Feedback Insights with the Selling Partner API

Build applications that turn customer reviews and returns into actionable product intelligence for Amazon sellers.

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Why Build Customer Feedback Applications?

Every product listing on Amazon generates a stream of customer signals: reviews, star ratings, return reasons. The Customer Feedback API gives developers programmatic access to these signals, enabling you to build tools that help sellers understand what customers love, what frustrates them, and where to focus next.

Whether you’re building a product analytics dashboard, a listing optimization tool, or an automated quality monitoring system, the Customer Feedback API provides the data foundation to power it.

Benefits for solution providers

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Build Insight-Driven Products

Access review topics, star rating impact analysis, and return defect classifications

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Two Channels, One Data Set

Use REST APIs for real-time, per-ASIN lookups or Data Kiosk GraphQL for bulk extraction across entire catalogs

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Reach Sellers at Scale

Publish and monetize your application on the Selling Partner Appstore.

Amazon’s Customer Feedback API gives us something aggregate star ratings never could: which specific themes are moving a brand’s rating, along with specific customer language. It gives 1000s of brands on our platform the ability to quickly understand customer sentiment to better meet customer needs
Sam Johnson
Chief Technology Officer, Jungle Scout
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Benefits for Sellers
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Know What Drives Ratings

See which review topics push star ratings up or down, not just what customers mention most.

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Spot Trends Early

Track month-on-month changes in review sentiment to catch emerging issues before they impact sales.

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Reduce Returns with Data

Understand the most common return reasons at category level and take targeted action.

Getting the topic-level insights behind customer reviews and returns directly through the API lets us help sellers quickly zero in on the key directions for product improvement from massive volumes of feedback — this is critical for lifting ratings and reducing return rates
Guqiang Lin
Sellfox ERP
What you can build?

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Review Topic Analysis
Retrieve the most positive and negative review topics for a specific ASIN. Topics can be sorted by number of mentions and by their effect on star rating. Customer snippets provide the actual language buyers use, giving sellers direct context for product decisions.
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Star Rating Impact Tools
Help sellers go beyond “what customers talk about” to “what actually moves the rating.” The API separates mention frequency from star rating impact — so a topic mentioned often but with low rating effect won’t distract from the issues that truly matter.
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Sentiment Trend Monitoring
Access month-on-month trends for review topics at ASIN and browse node level. Build dashboards that show sellers whether a product fix is working, whether a new issue is emerging, or whether seasonal patterns are at play.
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Return Defect Intelligence
Surface return topics with granular classifications at browse node level. Help sellers and vendors identify systemic return drivers across product categories — not just individual ASINs — enabling proactive quality improvements.
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Category-Level Benchmarking
Browse node insights let developers build tools that compare a seller’s product performance against category-wide review and return patterns, helping sellers understand whether an issue is product-specific or industry-wide.
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Enterprise-Scale Bulk Retrieval (Vendors)
For developers managing large vendor portfolios, Data Kiosk provides GraphQL-based bulk access to customer feedback metrics across thousands of ASINs in a single query — eliminating the need for thousands of individual REST calls. Data Kiosk customer feedback insights are currently available for Vendors only.
See it in Action

What are solution providers building with Customer Feedback Insights

Helium 10
Helium 10, a solution provider for Amazon sellers with over 2 million registered users, uses the Customer Feedback API to power its “Review Insights” feature. Available as a paid feature in the Helium 10 Chrome Extension across all 7 supported stores, it enables sellers to view top review topics, analyze how those topics influence star ratings, and track sentiment trends over a 6-month period. Sellers can also benchmark their product performance against category averages and export the data for further analysis.
Jungle Scout
Jungle Scout uses the Customer Feedback API to power a sentiment analysis feature that serves approximately 1,100 organizations and 4,500 individual users on its platform. Rather than analyzing a single product in isolation, the feature groups products together and surfaces themes customers consistently mention as positive or negative, then breaks those themes down by individual product. Sellers use this to compare their product sentiment against the category to identify areas for improvement, and to inform marketing messaging based on the specific language customers use in reviews.

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Sellfox (Dianxiaomi)
Sellfox, an Amazon seller ERP from Dianxiaomi with over 500,000 registered users, uses the Customer Feedback API to power two features within its platform: “Review Insights” and “Return Insights.” Available across Amazon US and other major stores, these features let sellers view top review topics and mention rates, analyze how each topic affects star ratings, and track 6-month trends to monitor the impact of product changes. The Return Insights feature provides category-level return reasons, mention rates, and month-over-month trends to help sellers identify and address common product defects.
Get Started
Ready to build with Customer Feedback Insights?
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Customer Feedback API Guide
Overview, use cases, and getting started
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Customer Feedback v2024-06-01
Endpoint details and request/response schemas
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Vendor Analytics Dataset Guide
Data Kiosk bulk retrieval for customer feedback metrics