Reverse ASIN and Amazon Rank Tracking From Python, Without a Seller-Tool Subscription

#python #ecommerce #amazon #api

Amazon sellers keep asking the same two questions: which keywords does this listing rank for, and is my rank going up or down? Seller tools answer both for a monthly fee. Here's how to get the answers from code and pay per result, plus what a real reverse-ASIN run returns.

Four modes

Disclosure: we (SteadyScrape) built the tool below and get paid when it's used.

Amazon Keyword Research & Rank Tracker: Reverse ASIN (steady-scrape/amazon-keyword-research-rank-tracker) is an Apify Actor with four modes:

Mode	Input	Output
`reverse_asin`	1–10 ASINs	Keywords each product ranks for, with monthly searches and organic rank
`related`	Seed keywords	Keywords shoppers search around your seed
`volume`	Up to 1,000 keywords	Amazon monthly searches for your own list
`rank_track`	ASINs × up to 100 keywords	Live organic and sponsored rank, plus the change since the last run

What a real reverse-ASIN run returns

We ran the Actor's prefilled example input: one ASIN (B00FLYWNYQ, a well-known Instant Pot), Amazon US, 20 keywords.

20 keywords returned in about 4 seconds.
Cost at the Free-plan list price: $0.03 run + $0.02 database request + 20 × $0.002 + $0.00005 Apify start fee = $0.090.

A few of the rows:

Keyword	Volume	Organic rank
sale	427,706	23
kitchen	161,530	18
pots	103,822	19
instant pot	57,783	1
kitchen appliances	46,076	5
slow cooker	43,608	17
pot	36,091	8
pressure cooker	34,856	1

Copy the high-volume keywords you're missing into your title, bullets and backend search terms, or feed them straight into a Sponsored Products campaign. Broad head terms like sale and kitchen show up often on reverse ASIN; filter by maxRank (e.g. page-one only) or keep the ones that match your product.

Example: reverse ASIN a competitor's best seller

from apify_client import ApifyClient

client = ApifyClient("<YOUR_APIFY_TOKEN>")
run = client.actor("steady-scrape/amazon-keyword-research-rank-tracker").call(run_input={
    "mode": "reverse_asin",
    "asins": ["B00FLYWNYQ"],
    "marketplace": "US",
    "maxKeywordsPerItem": 50,
    "maxRank": 48,   # page-one keywords only
})
for row in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(row["keyword"], row["searchVolume"], row["organicRank"])

Example: a daily rank tracker

run = client.actor("steady-scrape/amazon-keyword-research-rank-tracker").call(run_input={
    "mode": "rank_track",
    "asins": ["B00FLYWNYQ"],
    "keywords": ["instant pot", "pressure cooker", "slow cooker"],
    "marketplace": "US",
    "historyStoreName": "my-brand-ranks",
})
for row in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(row["keyword"], row["organicRank"], row["sponsoredRank"], row["previousRank"])

The Actor keeps the history in a key-value store in your own Apify account. Schedule it daily and every row carries previousRank, rankChange and a change label (up, down, entered, lost...).

Limits worth knowing

Reverse ASIN and related keywords cover Amazon US, UAE, Saudi Arabia and Egypt; search volume covers 16 Amazon stores and rank tracking 15.
Search volumes are monthly estimates from a licensed keyword database, not Amazon's own numbers.
Rank tracking checks live Amazon results, 100 at a time; looking deeper than the top 100 costs one more check per page of 100.
Only public product information is returned. No seller or reviewer personal data.

Cost

$0.002 per keyword (less on paid Apify plans: $0.0018 / $0.0016 / $0.0015) and $0.006 per rank check (per ASIN × keyword × page of 100; paid plans $0.0054 / $0.0048 / $0.0045), plus $0.03 per run with results and $0.02 per keyword-database request, and Apify's $0.00005 start fee.

The reverse-ASIN test above: $0.090 for 20 keywords.
Reverse ASIN with 100 keywords: about $0.25.
Daily tracking of 20 keywords for one ASIN (depth 100): about $0.15 a day.

Runs with no results and filtered-out keywords aren't charged.

Try it on the Apify Store: the prefilled example input runs the same reverse-ASIN test shown above. For Google keyword ideas there's Keyword Research Explorer, for bulk Google volumes Keyword Search Volume, and for competitor Google gaps Competitor Keyword Gap.

Built by SteadyScrape (steady-scrape). More tools: https://apify.com/steady-scrape

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