POST/v1/amazon/seller

Amazon Seller API

Get a third-party Amazon seller's profile — business info, ratings, and review breakdown from $0.01/call.

Fetch full seller profile metadata for any Amazon third-party seller. Returns business name, address, phone, logo, overall rating, 30/90/365/lifetime review breakdowns with positive/neutral/negative counts.

Full Docs Get API Key — Free $5 Credit $0.01 / call

Try it live

Fill in the fields and hit Run to see a real response.

POST/v1/amazon/selleramazon-seller$0.01/call

Response

Example response — hit "Send Request" to see a live result

{
  "ok": true,
  "data": {
    "status": "OK",
    "data": {
      "seller_id": "A02211013Q5HP3OMSZC7W",
      "name": "MemoryWhiz",
      "business_name": "Alast Corporation",
      "business_address": "20651 GOLDEN SPRINGS DRIVE Suite 111 Walnut CA 91789 US",
      "rating": 4.9,
      "ratings_total": 52177,
      "ratings_total_percentage": 99
    }
  }
}

Features

✓

Full business name and address

A /v1/amazon/seller lookup by seller_id returns the legal business_name (e.g. "Alast Corporation") and full business_address, so you know exactly who is behind a storefront.

✓

Storefront and profile links

Returns the seller's storefront and profile links, giving you stable URLs to monitor or deep-link for vetting and competitor tracking.

✓

Lifetime ratings total and %

Includes ratings_total (e.g. 52,177) and ratings_total_percentage (e.g. 99) alongside the overall rating (e.g. 4.9) — the headline reputation figures for the seller.

✓

30/90/365/lifetime review breakdowns

Breaks ratings down across 30-day, 90-day, 365-day, and lifetime windows with positive/neutral/negative counts, so you can see whether a seller's reputation is trending up or down.

✓

Logo image URL

Returns the seller's logo image URL for rendering recognizable seller cards in vetting dashboards and competitor trackers.

Use cases

Seller Vetting

Verify 3P seller reputation before placing orders or partnerships.

Arbitrage Screening

Filter arbitrage ops by seller rating and volume.

Competitor Research

Track your rivals' 3P seller storefronts and review trends.

Quick start

Copy this snippet and start making calls.

const res = await fetch('https://api.yepapi.com/v1/amazon/seller', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "seller_id": "A02211013Q5HP3OMSZC7W"
  }),
});
const data = await res.json();
console.log(data);

The Amazon Seller API for 3P storefront profiles

The YepAPI Amazon Seller API returns the full profile for any third-party Amazon seller. Look up a seller_id via /v1/amazon/seller and get back the business name and address, storefront and profile links, logo, overall rating, lifetime ratings_total and percentage, and review breakdowns across 30-day, 90-day, 365-day, and lifetime windows — all at $0.01 per call.

This describes the merchant, not a product. Where Offers tells you who's selling an item, the Seller API tells you who that seller actually is — legal business, address, and a time-windowed reputation trend — the data you need for seller vetting, arbitrage screening, and competitor research.

What is an Amazon Seller API?

An Amazon Seller API returns a third-party merchant's full profile as structured data, keyed on the seller's ID. You receive the legal business name and address, storefront and profile URLs, logo, overall star rating, lifetime ratings total and positive percentage, and a reputation breakdown across 30-day, 90-day, 365-day, and lifetime windows with positive/neutral/negative counts. It exists because evaluating who you're buying from — or competing against — requires more than a product page: it requires the merchant's identity and reputation trajectory, which this endpoint delivers in one call.

Build your own seller-vetting tool

Pass a seller_id to /v1/amazon/seller and render a vetting card with the business name, address, logo, and the multi-window rating breakdown. Use the 30/90/365-day splits to flag sellers whose reputation is declining even if their lifetime score still looks strong. It pairs directly with the Amazon Offers API — read the offers on an ASIN, then vet each competing seller — and with the Seller Reviews API for the underlying comments, all on one YepAPI key.

Amazon Seller API pricing — $0.01 per call

Seller profiles cost $0.01 per call. With no quotas or monthly minimums, screening a portfolio of competing sellers or arbitrage sources is just count × $0.01 — predictable whether you check ten sellers or ten thousand. Keepa and Rainforest API price by subscription or per request; YepAPI's flat per-call rate keeps seller-vetting workflows cheap to run on demand rather than gated behind a tier.

Time-windowed reputation trends

What sets the Seller API apart is the multi-window review breakdown. A single lifetime rating can hide a recent collapse in service quality; the 30-, 90-, and 365-day splits with positive/neutral/negative counts let you see the trajectory, not just the all-time average. Combined with the legal business name and address, that makes this the endpoint for trusting — or distrusting — a third-party seller before you transact or compete.

Try the Amazon Seller API free

Start with $5 in free credit — no card required — for 500 seller lookups to test the multi-window reputation breakdown on real storefronts. Pair it with the Amazon Offers and Seller Reviews endpoints on the same key for full competitor research.

Start making API calls in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

Get API Key — Free $5 Credit

What developers say

“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
Marcus T.
SEO Platform Founder

“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
Priya S.
Full-Stack Developer

“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Jake R.
Indie Hacker

Frequently asked questions

Each API call costs $0.01. No monthly minimums or subscriptions — you only pay for what you use.

Sign up for a free API key, then send a POST request to /v1/amazon/seller. Check the code example above for a ready-to-use snippet in JavaScript, cURL, or Python.

YepAPI bundles SEO, AI, and web scraping APIs under one key with no monthly minimums. You get lower per-call pricing, a unified dashboard, and one billing account instead of managing multiple providers.