Fetch and analyze Amazon product reviews to help sellers extract actionable insights from customer feedback.
This tool retrieves real customer reviews for a given Amazon ASIN across 15 marketplaces. You can control how many reviews to fetch per star rating (1-5 stars, up to 100 each), sort by recency or helpfulness, and apply various filters. Only one ASIN per request; for multiple ASINs, make separate calls.
US and non-US marketplaces use different backend endpoints. Route by marketplace:
scripts/amazon_us_reviews.py, pass marketplace: "US". See references/api_us.mdscripts/amazon_reviews.py, pass domainCode: "". See references/api.md| Parameter | Type | Required | Scope | Description | Default |
|---|---|---|---|---|---|
| ----------- | ------ | ---------- | ------- | ------------- | --------- |
| asin | string | Yes | All | Amazon product ASIN | - |
| star1Num | integer | No | All | 1-star reviews to fetch (0-100) | Non-US: 10, US: 0 |
| star2Num | integer | No | All | 2-star reviews to fetch (0-100) | Non-US: 10, US: 0 |
| star3Num | integer | No | All | 3-star reviews to fetch (0-100) | Non-US: 10, US: 0 |
| star4Num | integer | No | All | 4-star reviews to fetch (0-100) | Non-US: 10, US: 0 |
| star5Num | integer | No | All | 5-star reviews to fetch (0-100) | Non-US: 10, US: 0 |
| sortBy | string | No | All | recent (newest) or helpful (most helpful) | recent |
| formatType | string | No | All | current_format or all_formats | current_format |
| domainCode | string | No | Non-US | Marketplace code (see Supported Marketplaces) | ca |
| filterByKeyword | string | No | Non-US | Filter reviews by keyword (max 1000 chars) | - |
| reviewerType | string | No | Non-US | all_reviews or avp_only_reviews (verified only) | all_reviews |
| mediaType | string | No | Non-US | all_contents or media_reviews_only | all_contents |
| marketplace | string | No | US | Fixed value US | US |
| allStarsNum | integer | No | US | Reviews across all stars (0-100); active when star1-5Num are all 0 | 10 |
| positiveNum | integer | No | US | 4-5 star positive reviews (0-100) | 0 |
| criticalNum | integer | No | US | 1-3 star critical reviews (0-100) | 0 |
| Marketplace | Code |
|---|---|
| ------------- | ------ |
| United States | US |
| Canada | ca |
| United Kingdom | co.uk |
| Germany | de |
| France | fr |
| Italy | it |
| Spain | es |
| Japan | co.jp |
| India | in |
| Australia | com.au |
| Brazil | com.br |
| Mexico | com.mx |
| Netherlands | nl |
| Sweden | se |
| United Arab Emirates | ae |
US uses the marketplace parameter; all others use domainCode. Always confirm the user's intended marketplace.
1. Fetch US reviews — balanced snapshot
{"asin": "B08N5WRWNW", "marketplace": "US", "allStarsNum": 20, "sortBy": "recent"}
2. Fetch negative reviews with keyword filter (Germany)
{"asin": "B08N5WRWNW", "domainCode": "de", "star1Num": 30, "star2Num": 30, "filterByKeyword": "quality", "reviewerType": "avp_only_reviews"}
3. Fetch 5-star reviews with media (Japan)
{"asin": "B08N5WRWNW", "domainCode": "co.jp", "star5Num": 50, "star1Num": 0, "star2Num": 0, "star3Num": 0, "star4Num": 0, "sortBy": "helpful", "mediaType": "media_reviews_only"}
rating as full text (e.g., "5.0 out of 5 stars") and numberOfHelpful as string — extract numeric values for consistent display. US reviews may also include attributes (color, size, etc.) — display them to show which variant was reviewed.filterByKeyword, reviewerType, mediaType are only available for non-US marketplaces; allStarsNum, positiveNum, criticalNum are only available for the US marketplace.Applicable — Tasks involving Amazon product reviews:
| User Says | Scenario |
|---|---|
| ----------- | ---------- |
| "Show me the reviews for this ASIN" | Direct review lookup |
| "Get US reviews for B08N5WRWNW" | Marketplace-specific lookup |
| "What are customers complaining about" | Negative review analysis |
| "Get me all the 1-star reviews" | Star-filtered retrieval |
| "Any common issues in the bad reviews" | Pain point mining |
| "What do people like about this product" | Positive review analysis |
| "Find reviews mentioning 'battery'" | Keyword-filtered reviews (non-US) |
| "Show me reviews with photos" | Media-filtered reviews (non-US) |
| "Verified purchase reviews only" | Reviewer-type filtering (non-US) |
| "Help me analyze competitor reviews" | Competitor review research |
| "Product improvement suggestions from reviews" | Actionable insight extraction |
Not applicable — Needs beyond product review data:
Boundary judgment: If "product research" or "competitor analysis" boils down to reading customer reviews for specific ASINs, this skill applies. If it involves search volume, keyword rankings, sales estimates, or market sizing, it does not.
Feedback:
Auto-detect and report feedback via the Feedback API when any of the following apply:
Call the feedback API as specified in the references. Do not interrupt the user's flow.
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