Amazon Repricing + Buy Box Monitoring
Track the Buy Box winner on the ASINs that matter, daily or on demand. Cross-marketplace coverage, seller-level data and repricer-ready output.
USE CASE
PAIN POINTS
Why Marketplace Repricers Lose The Buy Box
- 01
You Can't See Who Takes the Buy Box
On competitive ASINs, the Buy Box moves between sellers often. Seller reports show your own share, not which competitor won it, when or at what price.
- 02
Marketplace APIs Show Part of the Picture
Your repricer is fed by marketplace APIs built around your own listings. Detail on competing sellers is limited, and there is no history of who held the Buy Box.
- 03
Cross-Marketplace Listings Drift
Same SKU on Amazon, eBay, Walmart — each marketplace's pricing engine moves independently. Manual reconciliation is impossible at scale.
- 04
FBA Stock Drift Affects Buy Box Eligibility
FBA inventory levels affect Buy Box win-rates. Without stock signal monitoring, you set prices on partial information.
- 05
Account Health Degrades Silently
Marketplaces flag restricted-brand violations weeks after they occur. Without seller-side monitoring, your account suspends without warning.
EUR 0.15
Per 1,000 listing pages collected — no plan, no seat licence, no quota
36
Ready-made marketplace and retailer endpoints, callable straight from your repricer
5
Free requests on every new account — pull one of your own ASINs before you commit
HOW IT WORKS
How Marketplace Repricing Works With Scrapewise
01
List Your ASINs
ASINs, GTINs, SKUs, or marketplace URLs you want covered.
02
Scrapewise Refreshes on Your Schedule
Buy Box, prices, sellers and stock signals extracted on the schedule you set.
03
Feed Your Repricer
Pull structured data through the REST API or a CSV export and use it in your repricer rules or your own pricing logic.
One ASIN, Four Offers, One Price Worth Reacting To
A repricer that chases the lowest number on the page will cut your margin against an offer that was never competing with you. This is the same ASIN read properly — B07ZL47PXP, where you sit at $45.99.
Read Every Offer, Not the Headline Price
The ASIN page shows one price at the top and a stack of offers underneath. Four sellers are live: NorthTech at $43.49 FBA, you at $45.99 FBA, ValuePort at $41.20 FBM with six-day handling, and ReStock at $34.00 used. A single-price scrape returns $43.49 and loses the other three, including the one holding the Buy Box.
Discard the Offers You Do Not Compete With
ValuePort is cheaper and irrelevant — six-day merchant fulfilment is not Buy Box eligible against Prime-speed offers, so it wins nothing. ReStock is used condition, a different product as far as the Buy Box is concerned. Repricing against either is a margin cut that buys no additional sales.
Act on the One Offer That Holds It
NorthTech at $43.49, FBA, new, in stock — that is the offer holding the Buy Box and the only number your rule should read. The row you receive carries the winner, their price, their fulfilment type and the timestamp, so the repricer decides on the same evidence you would have used by hand.
What Decides the Buy Box Besides Price
Sellers reprice against the lowest offer because it is the only field they have. Price is one input among several, and the others are readable from the listing — which is why a lower price frequently loses.
Fulfilment and Delivery Speed
FBA and Prime-speed merchant fulfilment compete on one tier; slow merchant fulfilment competes on another. A cheaper offer with six-day handling is not in your race at all. Reading fulfilment type alongside price is what separates a real competitor from a number that only looks like one.
- fulfilment
- ships_in_days
- is_prime
- seller_name
Condition
Used, renewed and open-box offers sit on a separate Buy Box from new. They regularly sit at the bottom of the offer stack and regularly get scraped as "the lowest price". A repricer fed that number cuts a new-condition price to chase a refurbished one.
- condition
- condition_note
- is_new
- offer_id
Stock and Eligibility
An offer that has run out does not hold the Buy Box regardless of its price, and your own FBA stock position affects whether you can hold it. Stock signal read from the listing tells you when a competitor's price stopped mattering — often the cheapest explanation for a Buy Box you suddenly won or lost.
- in_stock
- stock_signal
- buy_box_winner
- checked_at
History
A single snapshot cannot tell you whether a competitor is testing a price for an afternoon or has repositioned permanently. Only the second is worth matching. Every run retained means a Buy Box loss can be traced to the offer and the hour it changed, rather than guessed at from a seller report a week later.
- price
- previous_price
- buy_box_winner
- won_at
What You Send, What You Receive
You supply the ASINs and the cadence. You receive the full offer stack per listing, with the Buy Box winner identified.
You give
- ASINs, SKUs or listing URLsrequired
The listings you want covered. ASINs, GTINs, your own SKUs, or raw marketplace URLs.
B07ZL47PXP, B0B5HBT3T6, B09NMLZ2GH - Marketplacesrequired
Amazon by region, plus eBay, Walmart Marketplace and Etsy. The same configuration model covers all of them.
amazon.comamazon.deebay.comwalmart.com - Offer scopeoptional
- New condition, Buy-Box-eligible only
On by default. Used, renewed and slow-fulfilment offers are captured and labelled, but excluded from the competing-price field your repricer reads.
- Refresh scheduleoptional
- Daily
- Every few days
- On demand
How often each listing is re-read. A full-access API key also lets you start runs from your own code.
You get
One row per competing offer, 11 columns each
- asin
- marketplace
- listing_url
- seller_name
- offer_price
- currency
- fulfilment
- condition
- in_stock
- is_buy_box_winner
- checked_at
Delivered by REST API, CSV export or a scheduled push into your repricer. Offers from the same ASIN stay on separate rows, so you can see who you are actually losing the Buy Box to.
The Offer Row You Actually Receive
One row per offer per run, not one row per ASIN. This is B07ZL47PXP as it lands in your repricer.
| asin | seller_name | offer_price | fulfilment | condition | in_stock | is_buy_box_winner |
|---|---|---|---|---|---|---|
| B07ZL47PXP | NorthTech | $43.49 | FBA | new | yes | yes |
| B07ZL47PXP | you | $45.99 | FBA | new | yes | no |
| B07ZL47PXP | ValuePort | $41.20 | FBM — 6 day | new | yes | no |
| B07ZL47PXP | ReStock | $34.00 | FBM | used — like new | yes | no |
BUILD VS BUY
Marketplace API, or an Independent Data Layer
Feature
Marketplace API Alone
Scrapewise
Competing offers
Limited detail on sellers other than you
The full offer stack read from the listing, seller by seller
Buy Box winner
Your own share, not who took it or at what price
Winner identified per run, with their price and fulfilment type
Cross-marketplace
A separate integration and a separate schema per marketplace
Amazon, eBay, Walmart and Etsy in one schema
History
Whatever window the API retains
Every run kept, so a Buy Box loss is traceable to an offer
Effect on your seller account
n/a
Runs on our infrastructure — never from your seller account or its IP
What you compare on cost
Integration work, plus the margin lost repricing on partial data
EUR 0.15 per 1,000 delivered pages, 5 free requests to test
BENEFITS
Repricing Data You Control
Buy Box Data On Your Schedule
Seller and price data from the listing itself, for the ASINs that matter.
Cross-Marketplace + Seller-Level
Amazon, eBay, Walmart, Etsy — all in one schema. Seller name, FBA flag, stock all captured.
Repricer-Ready Output
Pull Buy Box and seller data through the REST API into your own pricing engine, or export CSV for your repricer rules.
Who Won the Buy Box Yesterday? Your Repricer Should Know.
Stop running marketplace pricing on marketplace API data alone. Scrapewise gives marketplace sellers independent Buy Box and seller data.
FAQ
Frequently Asked Questions
Common questions about marketplace repricing with Scrapewise.
Repricers automate price changes. Scrapewise is the independent data layer beneath, with seller-level + listing-level data your repricer can use to make better decisions.