# Amazon Product Reviews by ASIN

> Amazon Product Reviews by ASIN is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Fetches Amazon product reviews (text, rating, author, date, helpful votes, verified/Vine flags) plus star-rating breakdown for a given ASIN or product URL, using an async two-step snapshot flow.

## Facts

- Endpoint: GET https://api.x402node.dev/ecom/reviews
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/amazon-product-reviews-by-asin-1542a778
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aSVtj4gXUfyBOw2NQWKOJ

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-1542a778
```

Example prompt: Pull all the Amazon customer reviews for ASIN B08N5WRWNW — I want the review text, star ratings, whether each is a verified purchase, and the overall rating breakdown so I can mine for common complaints.

## When to prefer this

Use this endpoint when you need structured Amazon review data including per-review metadata (verified purchase, Vine, helpful votes, variant) and the aggregate star-rating breakdown — especially for review mining, sentiment analysis, complaint detection, or competitive weakness analysis. Prefer over generic web scraping when you need clean, parsed review fields rather than raw HTML.

## Known failure modes

- Invalid or non-existent ASIN returns an error or empty review set
- Snapshot ID not yet ready returns a pending/retry status — caller must wait ~40s before polling
- Amazon throttling or access restrictions may cause incomplete data
- Product with no reviews returns an empty reviews array
- Malformed URL input fails parameter validation
- Payment failure (insufficient USDC) results in 402 rejection before any data is returned

## How this service works

Get Amazon product reviews by ASIN or URL: review text, star rating, title, author, date, verified-purchase and Vine flags, helpful votes and variant, plus the product star-rating breakdown. Async: a first call with asin returns a snapshot id (collection ~40s); call again with that snapshot to fetch reviews. For review mining, sentiment, complaint detection and competitor weakness analysis. 亚马逊评论挖掘与差评分析。 Accepts payment on Base or Solana — either network works.

## Output

On first call with an ASIN or URL, returns a snapshot ID (collection takes ~40 seconds). On second call with the snapshot ID, returns a list of reviews each containing: review text, star rating (1-5), title, author name, date, verified-purchase flag, Vine flag, helpful votes count, product variant, plus an aggregate star-rating breakdown (count per star level) for the product.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "asin",
      "url",
      "snapshot"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Full Amazon product URL (alternative to asin)."
      },
      "asin": {
       "type": "string",
       "description": "Amazon ASIN, 10 chars (provide asin OR url for the first call)."
      },
      "domain": {
       "type": "string",
       "description": "Marketplace domain when using asin, e.g. amazon.com (default), amazon.co.uk."
      },
      "snapshot": {
       "type": "string",
       "description": "Snapshot id (sd_...) from the first call; pass it on the second call to fetch results."
      },
      "max_reviews": {
       "type": "string",
       "description": "Number of reviews to collect, 1-50 (default 10)."
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/amazon-product-reviews-by-asin-1542a778/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)