How to Compare Amazon Offers Using SteadyAPI

Staff Member

Oct 10, 2026

amazon API

An ASIN can have more than one seller. Offers lists those sellers for one product: price, condition, who ships it, and the seller id. You use it after you already have an ASIN from search, details, or a similar-products call.

👉 To access this endpoint, you must obtain an API key: https://steadyapi.com/register

Authentication

Every call uses a Bearer token from your SteadyAPI dashboard.

Documentation:
https://docs.steadyapi.com/#authenticating-requests

headers = {
  'Authorization': 'Bearer YOUR_API_KEY'
}

Where this fits

Start from a product ASIN, then call GET /v1/amazon/products/offers. The seller_id on a row is the input for GET /v1/amazon/seller/profile. This list is not a search. It will not find products by keyword.

Compare Amazon offers

Endpoint: GET /v1/amazon/products/offers

Documentation:
https://docs.steadyapi.com/#amazon-GETapi-v1-amazon-products-offers

Parameters

asin — required, max 20 characters (example: B09TDP1HCV)
country — optional marketplace code, default US
condition — optional: new, like_new, very_good, good, acceptable
delivery — optional: prime or free
language — optional language code for that marketplace

Omit condition and the list includes every condition. meta.condition is then all. Omit delivery and both Prime and non-Prime offers can appear. meta.delivery is then all. Set delivery to prime when you only want Prime. Country codes are case-insensitive. There is no page parameter.

Python

import requests

url = "https://api.steadyapi.com/v1/amazon/products/offers"
headers = {"Authorization": "Bearer YOUR_API_KEY"}

response = requests.get(url, headers=headers, params={
    "asin": "B09TDP1HCV",
    "delivery": "prime",
})
response.raise_for_status()
payload = response.json()
print(payload.get("meta", {}).get("asin"))

for offer in payload.get("body") or []:
    print(offer.get("product_price"), offer.get("seller"), offer.get("seller_id"))

Annotated sample

{
  "product_price": "$24.07",
  "product_original_price": null,
  "product_condition": "Used - Very Good",
  "ships_from": "Amazon.com",
  "seller": "Yuanchina",
  "seller_id": "A531LOZXINYGL",
  "currency": "USD",
  "delivery_price": "FREE",
  "delivery_time": "Monday, July 21"
}

Store seller_id if you will open the seller profile. Show seller and product_price. The price is a string, not a number. meta.asin is the ASIN you asked for, not a different product. delivery_price in this row is the word FREE. seller_star_rating can be null even when the offer is present.