Buy Box Monitoring — See Who Wins the Sale on Every Product
Track buy-box ownership, rotation patterns, and pricing on Amazon and bol.com around the clock. Get alerts the instant an unauthorized seller takes over or a MAP violation occurs.
Sound familiar?
You lose revenue every hour an unauthorized reseller holds the buy box on your listings.
Manual spot-checks only catch a fraction of buy-box rotations — most go unnoticed.
Without data on rotation frequency, you cannot negotiate effectively with marketplace partners.
MAP and MRP violations on the buy box erode brand perception and channel trust.
Competitors price below cost to steal the buy box, triggering a margin-destroying race.
Get started in minutes
Add Your ASINs or EANs
Upload the products you want to monitor. ShoppingScraper links them to the correct Amazon and bol.com listings automatically.
Schedule Checks
Set up to 4x daily monitoring or trigger on-demand checks via the API. Each check captures the current buy-box owner, price, shipping cost, and seller rating.
Receive Alerts and Reports
Get instant email or webhook alerts when the buy-box owner changes. Review rotation reports in the dashboard or export to CSV.
Deep-dive into any product — see exactly where you stand vs competitors
Everything you need
Real-Time Buy Box Tracking
Know exactly which seller holds the buy box at any given moment — updated up to 4x daily via scheduler or on demand via the API.
Ownership Rotation Reports
See how often the buy box rotates, which sellers are winning, and the average price at which they win.
MAP Violation Detection
Automatically flag when a buy-box price drops below your minimum advertised price, complete with seller name and timestamp.
Multi-Region Amazon Coverage
Monitor buy-box ownership across Amazon US, UK, DE, FR, IT, ES, NL, and more from one account.
bol.com Buy Box Support
Track the buy-box winner on bol.com — a must-have for Benelux brands and retailers.
Webhook & API Integration
Pipe buy-box change events directly into your CRM, repricing tool, or Slack channel via webhooks.
Why the Buy Box Decides Your Revenue
On Amazon, over 80% of sales go through the buy box. If you are not the featured offer, your product page might as well be invisible. For brands, an unauthorized third-party seller winning the buy box can undercut your pricing strategy, damage margins, and confuse customers. Continuous monitoring is the first step toward regaining control.
- Identify unauthorized sellers within minutes of their first buy-box win
- Build an evidence trail for enforcement actions against MAP violators
- Understand rotation patterns to optimize your own pricing and stock levels
Compare sellers side by side
From Detection to Enforcement
Data alone does not solve buy-box problems — action does. ShoppingScraper's alerts and reports give your brand protection team the evidence they need to file complaints, send cease-and-desist notices, or adjust distribution agreements. Timestamped screenshots, seller IDs, and pricing logs make enforcement faster and more effective.
- Export violation logs as CSV for legal and compliance teams
- Share read-only dashboards with channel managers and distributors
- Combine with price history data for trend analysis and forecasting
Full product price intelligence per EAN
Optimized for Amazon and bol.com Sellers
Whether you sell direct or through third-party resellers, buy-box intelligence helps you price competitively without sacrificing margin. Our data includes the seller name, fulfilled-by status, shipping cost, and rating — all the factors that Amazon and bol.com use to award the buy box.
- Fulfilled-by-Amazon (FBA) vs. merchant-fulfilled breakdown per listing
- Seller rating and feedback count included in every data point
- Historical buy-box ownership data for trend analysis
Complete merchant intelligence table
Buy Box API
2 endpoints — copy-paste in cURL, Python, or JavaScript. Full reference at app.shoppingscraper.com/apiguide.
Amazon Buy Box — current winner + price
Single call returns who currently owns the Amazon Buy Box for an EAN: seller name, price, shipping, total. Available on amazon.nl, .de, .co.uk, .fr.
Implementation
curl -X GET "https://api.shoppingscraper.com/buybox?api_key=your_api_key_here&site=amazon.nl&ean=4548736112025"
https://api.shoppingscraper.com/buybox?site=amazon.nl&ean=4548736112025&api_key=your_api_key_here{"ean": "4548736112025","sku": "B0863TXGM3","title": "Sony WH-1000XM4 Wireless Headphones","url": "https://www.amazon.nl/dp/B0863TXGM3","availability": "AVAILABLE","currency": "EUR","offers": {"sellerName": "Amazon","price": "229.00","formerPrice": "279.00","shippingPrice": "0.00","totalPrice": "229.00","condition": "New","isBuyBoxWinner": true}}
bol.com Koopblok — current winner + price
Returns the current bol.com Koopblok holder for an EAN: seller(s), price, shipping, total, condition. Use gl=nl|be / hl=nl|fr to switch storefront.
Implementation
curl -X GET "https://api.shoppingscraper.com/buybox?api_key=your_api_key_here&site=bol.com&ean=8718526126587"
https://api.shoppingscraper.com/buybox?site=bol.com&ean=8718526126587&api_key=your_api_key_here{"ean": "8718526126587","sku": "B0863TXGM3","title": "Kruidvat Zonnebrand Spray SPF 30","url": "https://www.bol.com/dp/B0863TXGM3","availability": "AVAILABLE","currency": "EUR","offers": {"sellerName": "Bol","price": "229.00","formerPrice": "279.00","shippingPrice": "0.00","totalPrice": "229.00","condition": "New","isBuyBoxWinner": true}}
Frequently Asked Questions
Which marketplaces support buy-box monitoring?+
Currently Amazon (all major regions) and bol.com. These are the two largest marketplaces with a buy-box system in our supported list.
How often is buy-box data updated?+
You choose the frequency — 4x daily is the most common for buy-box monitoring. On-demand API calls are also available for real-time checks.
Can I detect unauthorized sellers?+
Yes. By comparing buy-box winners against your authorized seller list, ShoppingScraper flags any seller that should not be holding the buy box.
Does it track MAP violations?+
Yes. You set your minimum advertised price per SKU, and the system flags any buy-box occurrence below that threshold with the seller name, price, and timestamp.
Can I export buy-box reports?+
Absolutely. Export to CSV, sync to Google Sheets, or pull data via the REST API. Shareable dashboard links are also available for team collaboration.
What data is included for each buy-box check?+
Each data point includes the buy-box winner (seller name), price, shipping cost, fulfilled-by status, seller rating, and a UTC timestamp.
How does this help with repricing?+
Knowing who holds the buy box and at what price lets you set smarter repricing rules — for example, matching the buy-box price only when the current winner is FBA.
Start monitoring your buy box today
100 free API calls. No credit card required. See results in minutes.