# ASIN402 Top-Rated Amazon Sellers

> ASIN402 Top-Rated Amazon Sellers is a paid API for AI agents from asin402.com, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-31).

Returns an ordered list of Amazon seller IDs ranked by number of ratings in a given marketplace (up to 100,000 sellers).

## Facts

- Endpoint: GET https://asin402.com/api/data/topsellers?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/asin402-top-rated-amazon-sellers-33400a7e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VGdye6GUxy7eRga1doR8a

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 asin402-top-rated-amazon-sellers-33400a7e
```

Example prompt: Give me the top 500 most-rated Amazon sellers in the UK marketplace so I can analyze who dominates third-party selling there.

## When to prefer this

Use this endpoint when you need a ranked, high-volume list of top Amazon sellers by rating count in a specific marketplace — ideal for competitive intelligence, seller benchmarking, outreach targeting, or market landscape analysis. Prefer this over product-focused endpoints when your primary subject is the seller entity rather than specific ASINs or product listings.

## Known failure modes

- Invalid marketplace domain value returns an error or defaults to US
- Requesting more sellers than available in marketplace returns fewer results than requested
- Rate limiting or insufficient credits returns a payment/402 error
- Network timeout for large result sets (e.g. limit=100000)

## How this service works

Most-rated Amazon sellers. Ordered list of seller IDs with the most ratings in a marketplace (up to 100,000). 50 credits.

## Output

A JSON object containing an ordered array of Amazon seller ID strings ranked by rating count, the total number of sellers returned, the marketplace domain ID, whether the result was cached, and the price paid for the call.

## 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",
     "properties": {
      "limit": {
       "type": "integer",
       "description": "Return only the top N seller IDs. Default 1000."
      },
      "domain": {
       "type": "string",
       "description": "Amazon marketplace: us, uk, de, fr, jp, ca, it, es, in, mx, br. Default us."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "_meta": {
       "type": "object",
       "properties": {
        "cached": {
         "type": "boolean"
        },
        "price_paid": {
         "type": "string"
        },
        "marketplace_domain_id": {
         "type": "integer"
        }
       }
      },
      "total": {
       "type": "integer"
      },
      "seller_ids": {
       "type": "array",
       "items": {
        "type": "string"
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "_meta": {
   "cached": false,
   "price_paid": "$0.007",
   "marketplace_domain_id": 1
  },
  "total": 1,
  "seller_ids": [
   "A1SAMPLESELLER"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/asin402-top-rated-amazon-sellers-33400a7e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from asin402.com](https://www.zero.xyz/host/asin402.com/llms.txt)