# Amazon Product Reviews by ASIN

> Amazon Product Reviews by ASIN is a paid API for AI agents from stableninja.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches Amazon customer reviews for a product identified by its ASIN, with filtering by star rating, sort order, and country.

## Facts

- Endpoint: GET https://stableninja.dev/api/amazon/product-reviews
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/amazon-product-reviews-by-asin-b30db6b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZXNgYkrtkI_b5xrNNQM86

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability amazon-product-reviews-by-asin-b30db6b5
```

Example prompt: Can you pull the top reviews for Amazon product ASIN B08N5WRWNW in the US, sorted by TOP_REVIEWS, only showing 5-star verified purchases from page 1?

## When to prefer this

Use this endpoint when you need to retrieve Amazon product reviews programmatically by ASIN, especially when you need to filter by star rating, sort by recency or top reviews, or limit to verified purchases. Prefer this over generic web scraping when structured review data with pagination is needed for a specific Amazon marketplace country.

## Known failure modes

- Invalid or non-existent ASIN returns empty results or error
- Unsupported country code returns validation error
- Page number out of range returns empty or error response
- Product has no reviews for the selected star filter
- Rate limiting or payment failure (x402) blocks the request
- Amazon anti-scraping measures may cause intermittent failures

## How this service works

Fetch Amazon product reviews by ASIN.

## Output

Returns a paginated list of Amazon customer reviews for the specified product, including review text, star rating, reviewer details, verified purchase status, and helpfulness data, filtered and sorted according to the requested parameters.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "asin"
     ],
     "properties": {
      "asin": {
       "type": "string",
       "minLength": 1
      },
      "page": {
       "type": "integer",
       "maximum": 9007199254740991,
       "minimum": 1
      },
      "country": {
       "enum": [
        "US",
        "AU",
        "BR",
        "CA",
        "CN",
        "FR",
        "DE",
        "IN",
        "IT",
        "MX",
        "NL",
        "SG",
        "ES",
        "TR",
        "AE",
        "GB",
        "JP",
        "SA",
        "PL",
        "SE",
        "BE",
        "EG",
        "ZA",
        "IE"
       ],
       "type": "string"
      },
      "sort_by": {
       "enum": [
        "TOP_REVIEWS",
        "MOST_RECENT"
       ],
       "type": "string"
      },
      "star_rating": {
       "enum": [
        "ALL",
        "5_STARS",
        "4_STARS",
        "3_STARS",
        "2_STARS",
        "1_STAR"
       ],
       "type": "string"
      },
      "verified_purchases_only": {
       "type": "boolean"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/amazon-product-reviews-by-asin-b30db6b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stableninja.dev](https://www.zero.xyz/host/stableninja.dev/llms.txt)