Amazon Product Sourcer for
Real-Time ASIN Analysis
SellerMagnet Sourcer is an Amazon product research tool and product sourcer that lets you analyze any ASIN in seconds: built-in Amazon profit calculator, price history tracker, Buy Box share data, stock levels, and competitor offers, so you can find profitable products to sell on Amazon with confidence.
Sellers using SellerMagnet Sourcer identify 30% fewer unprofitable products and save an average of 4+ hours per week on product research. (Based on SellerMagnet platform data)
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14-day free trial · Credit card required · Cancel anytime
Key Performance Stats
Let’s start with the basics ↓
What Is an Amazon Product Sourcer and How Does SellerMagnet Work?
SellerMagnet Sourcer is an Amazon product sourcer designed to help you evaluate any product opportunity in seconds. Enter an ASIN (or other identifiers like EAN or ISBN) and instantly get the key signals that matter before you invest: current pricing, Buy Box dynamics, competitor offers, stock availability, and profitability.
Unlike generic research tools, SellerMagnet combines ASIN analysis with an integrated profit calculator so you can validate margins and ROI while you're reviewing real market conditions.
- Real-time product metrics: eligibility checks and marketplace signals at a glance
- Built-in Amazon profit calculator: FBA and FBM scenarios with fee breakdown
- Offer and competitor monitoring: active sellers, stock signals, and Buy Box dynamics
- Price history and BSR visibility: trend behavior and demand context
Why You Need a Product Research Tool to Find Profitable Products on Amazon
If you want to find profitable products to sell on Amazon, you need more than a “good feeling”. You need evidence: demand signals, pricing stability, competition pressure, and a realistic profit calculation after fees and costs.
Price Volatility Risk
Is the price stable or volatile? Without price history data, you're buying inventory based on a snapshot, not a trend. SellerMagnet's price history tracker shows you the full picture before you commit.
Hidden Fee Surprises
What's your net profit after FBA fees, referral fees, VAT, shipping, and cost of goods? Most sellers discover margin problems after purchasing inventory. The built-in profit calculator prevents that.
Competitive Blind Spots
How crowded is the offer listing? Is the Buy Box concentrated or constantly changing hands? Without competitor analysis, you may enter a race to the bottom, or miss an open market entirely.
The solution: SellerMagnet Sourcer gives you the complete picture: price stability, competition density, and real profitability. So you source with evidence, not guesswork.
- Open 5+ browser tabs for each product
- Manually calculate fees in spreadsheets
- No visibility into competitor pricing
- Guessing if price is stable or volatile
- Discovering margin problems after purchasing
- Everything in one dashboard, one search
- Instant profit calculation with all fees included
- Full competitor offers and Buy Box share view
- 90-day price history chart with trend detection
- Data-driven go/no-go decisions before investing
Based on average user workflow comparison.
What Sellers Are Saying
Join thousands of Amazon sellers who source smarter with SellerMagnet.
“The profit calculator alone saved me from purchasing 200 units of a product that looked profitable at first glance but would have netted a loss after FBA fees.”
Marco R.
FBA Seller, DE
“I used to spend hours jumping between tabs to check prices, competitors, and fees. SellerMagnet gives me everything in one view. It's a game-changer for sourcing.”
Sophie K.
Reseller, UK
“The Buy Box share and competitor offer view are incredible. I can instantly see if it's worth competing on a listing before committing any budget.”
Luca P.
Wholesale Seller, IT
Source Smarter, Starting Today
Start analyzing ASINs with real data: profit, competition, and price history, in under 5 seconds.
Now let’s see what it can do ↓
What Are the Core Capabilities of This Amazon Product Research Tool?
From ASIN lookup to competitive intelligence, SellerMagnet Sourcer, the all-in-one product research tool for Amazon sellers, puts every critical data point at your fingertips.
ASIN Lookup & Product Details
Enter any ASIN, EAN, UPC, or ISBN and get the full product profile in seconds: title, brand, category, BSR (Best Sellers Rank), dimensions, weight, and eligibility flags.
- Supports ASIN, EAN, UPC, ISBN search
- BSR rank and category context
- Eligibility and restriction alerts
Amazon Profit Calculator
Know your numbers before you buy. Enter buy cost, sell price, and shipping, and the calculator instantly breaks down referral fees, FBA/FBM costs, VAT impact, and net margin, for any Amazon marketplace worldwide.
- FBA vs FBM side-by-side comparison
- Complete fee breakdown (referral, fulfillment, storage)
- ROI and margin percentage
Price History & Trend Analysis
See how the Buy Box price has evolved over time. Identify seasonal patterns, price wars, and stability levels, so you know whether today’s price is a norm or an outlier.
- Historical Buy Box price chart
- BSR trend overlay
- Volatility and seasonal pattern detection
Competitor & Offer Analysis
See who’s selling the same product, at what price, with what fulfillment method, and who holds the Buy Box. Understand your competitive landscape before listing.
- Active seller count and price spread
- Buy Box share distribution
- FBA vs FBM offer breakdown
The Amazon Profit Calculator: Know Your Numbers Before You Buy
The Sourcer’s built-in profit calculator auto-detects product category, dimensions, and weight to compute fees with pinpoint accuracy. No manual lookups required.
Every cost layer is surfaced transparently: referral fee, FBA pick-and-pack, monthly storage, closing fee, and VAT. You’ll see exactly where your money goes before you commit a single euro.
The calculator renders an FBA vs FBM side-by-side comparison, letting you instantly evaluate which fulfillment route maximizes your margin for any given product.
Use the scenario simulation sliders to change buy cost, sell price, or shipping and watch margin, ROI, and net profit update in real time, perfect for testing margin sensitivity before you negotiate with suppliers.
- Auto category & dimension detection for precise fee calculation
- Full fee stack: referral, FBA/FBM fulfillment, storage, closing, VAT
- FBA vs FBM side-by-side profit comparison
- Real-time scenario simulation for margin sensitivity testing
Profit Calculator
90-Day Price Trend
Live DataPrice History & BSR Tracker: Read the Market Before You Invest
Historical price data is the single most underrated weapon in a sourcer’s toolkit. Knowing where the price has been tells you where it’s likely going.
Identify seasonal patterns like Q4 price spikes and Prime Day dips. Time your inventory purchases to ride the wave up, not chase it.
The BSR overlay correlates price drops with sales velocity increases, revealing when a price reduction is a strategic move that drives volume, and when it’s a race to the bottom.
Learn to distinguish price wars from healthy competition. A stable price corridor with modest fluctuation signals a mature market; erratic drops mean risk.
- 90-day Buy Box price and BSR trend charts
- Seasonal pattern and Q4 spike detection
- Price-to-BSR correlation overlay for sell-through analysis
- Volatility scoring to flag price-war risk markets
Competitive Intelligence: Know Who You’re Up Against
The Sourcer’s competitor analysis panel gives you a full breakdown of every seller on a listing: who they are, how they fulfill, and what price they’re offering.
Key metrics at a glance: total seller count, FBA/FBM breakdown, Buy Box share percentage, and price spread. Each metric tells a different story about how competitive, or how welcoming, a listing really is.
Use this data for clear go/no-go sourcing decisions. A listing with 3 FBA sellers and a 25% Buy Box gap is a very different opportunity than one dominated by a single reseller.
Watch for red flag indicators: more than 15 FBA sellers competing, Amazon itself as a seller, or less than 5% margin spread across offers. Any of these signals calls for extreme caution.
- Total active seller count with FBA/FBM split
- Buy Box share distribution per seller
- Price spread and margin corridor analysis
- Red flag alerts: Amazon-as-seller, overcrowded listings, razor margins
Competitor Panel
Buy Box Share Distribution
How Does the Amazon Sourcer Work?
Enter any ASIN, EAN, UPC, or ISBN and get instant access to profitability data, competitor offers, price history, and Buy Box dynamics. The entire workflow takes under a minute, from search to sourcing decision.
Unlike juggling 5+ browser tabs and spreadsheets, SellerMagnet Sourcer consolidates every critical data point into one view. It’s built to work as part of a complete selling system: the Repricer, Listing Optimizer, Alerts, and Analytics all connect inside SellerMagnet.
1 Search Any Product
2 Analyze Competition & Profitability
3 Source with Confidence
Search Any Product
ASIN · EAN · UPC · ISBN
Analyze & Compare
Offers · Buy Box · Margins
Source with Confidence
90-day trend · Go / No-go
See the Product Sourcer in Action
Explore a real ASIN analysis, no signup required. See how profit calculations, price history, and competitor data work.
No credit card · No signup · Takes 60 seconds
Ready to see it in action? ↓
Ready to Source Profitable Products?
Start your free trial and analyze your first ASIN in under 5 seconds.
Chrome Extension: Analyze Any Amazon Listing Instantly
With the SellerMagnet Chrome Extension, you don’t need to leave Amazon. As you browse listings, the extension overlays real-time data, including profit estimates, Buy Box share, competitor offers, and price history, directly on the product page.
- One-click ASIN analysis while browsing Amazon
- Profit overlay showing margin and ROI at a glance
- Competition snapshot with active seller count and Buy Box holder
- Works on all Amazon marketplaces supported by SellerMagnet
Why Choose SellerMagnet Sourcer Over Separate Tools?
Most Amazon sellers cobble together 4–5 different subscriptions for product research, fee calculation, price tracking, and competitor analysis. SellerMagnet Sourcer replaces them all.
All-in-One Platform
Stop juggling 4–5 separate subscriptions for profit calculation, price tracking, competition analysis, and BSR monitoring. SellerMagnet Sourcer consolidates every sourcing function into a single dashboard.
Unlimited ASIN Lookups
No daily caps, no credit systems, no per-lookup fees. Analyze as many ASINs as your business demands.
Real-Time Data
Live data via Amazon SP-API. Prices, Buy Box holders, stock levels, and fees pulled in real time, not cached from hours ago.
Chrome Extension
Analyze any Amazon listing without leaving the page. Profit overlay, Buy Box share, and competitor data right on the product page. Free with every plan.
Full Global Coverage
Analyze products across 20+ Amazon marketplaces worldwide. Fees, VAT, and fulfilment costs calculated with marketplace-specific accuracy.
Complete Seller Suite
Sourcer is part of a toolkit including Repricer, Listing Optimizer, Review Request, and Alerts. One subscription covers your entire selling workflow.
How Does SellerMagnet Compare to Alternatives?
See how SellerMagnet Product Sourcer stacks up against manual Amazon research and generic sourcing tools.
Scroll to compare
| Feature | SellerMagnet | Manual Research | Generic Sourcing Tools |
|---|---|---|---|
| ASIN Lookup & Deep Analysis | Yes Instant, automated | Partial Manual copy-paste | Yes Basic data |
| Built-in Profit Calculator | Yes Full FBA & FBM | No Spreadsheet needed | Partial Basic estimates |
| Price History Tracker | Yes Interactive chart | No | Partial Varies |
| Buy Box Share Analysis | Yes Real-time data | No | No |
| Competitor Offers & Stock Levels | Yes Full dashboard | Partial Manual checks | Partial Limited |
| Full Seller Suite (Repricer, Listing, Alerts) | Yes All-in-one | No | No Sourcing only |
| Multi-Marketplace | Yes All 20+ marketplaces | Partial 1 at a time | Partial Varies |
| Time per Product | Fast Under 5 sec | Slow 15-30 min | Moderate 3-10 min |
| Data Export & Bulk Analysis | Yes | No | Partial Varies |
| Starting Price | Free (plans from €10/mo) | Free but manual | $29 to $99/mo |
SellerMagnet Product Sourcer is the only tool that combines instant ASIN analysis, a built-in profit calculator with real Amazon fees, price-history charts, Buy Box insights, and competitor monitoring, all within a single, all-in-one seller platform with a free tier and paid plans from €10/mo.
14-day free trial · Cancel anytime
Recommended for Resellers & Arbitrage Sellers
Part of a complete seller toolkit ↓
Amazon Sourcer Is Part of a Complete Amazon Suite
Finding profitable products is the first step. To actually sell them, you need competitive pricing, real profit tracking, and more reviews. These tools work together with the Sourcer.
Amazon Repricer
Once you source a profitable product, you need to win the Buy Box. Repricer adjusts pricing automatically based on competitor moves and your margin rules, so the products you sourced actually sell.
Win the Buy Box on every sourced ASIN
Analytics / Profit Dashboard
The Sourcer shows estimated profit before you buy. The Dashboard shows real profit per ASIN after Amazon fees, ad spend, and returns, confirming your sourcing decisions were right across your entire catalog.
Verify real profit on every sourced product
Review Requester
More reviews drive higher conversion and sales velocity on the products you sourced. Review Requester automates compliant review requests with one-click campaigns, turning well-sourced products into top sellers.
Turn great sourcing into 5-star momentum
How to Source Profitable Products on Amazon: A Seller’s Guide
Profitable sourcing isn’t luck. It’s a repeatable process. Master these six pillars and you’ll evaluate any product in minutes, with confidence that the numbers add up before you commit a single dollar of inventory spend.
Margin Analysis First
Calculate net profit including ALL Amazon fees: referral fees, FBA/FBM fulfilment, storage, closing fees, and VAT before committing. A product that looks profitable at the Buy Box price may actually lose money after fees. Use the built-in profit calculator to simulate FBA vs FBM scenarios side by side.
Key fee types to account for: Amazon referral fee (typically 8–15 % depending on category), FBA pick-and-pack and weight handling fees, monthly and long-term storage fees, variable closing fees for media categories, and marketplace-specific digital service taxes.
Margin thresholds: Aim for a minimum 20 %+ ROI after all fees and landed costs. Products below a 15 % net margin leave almost no buffer for price drops or unexpected fees. The higher your target ROI, the more resilient your catalogue is to market fluctuations.
Break-even calculation: Determine the minimum Buy Box price at which you still make a profit. If the current price is close to break-even, even a small price war could push you into negative territory. Always know your floor before you source.
Validate Demand with BSR Trends
BSR (Best Sellers Rank) is the closest proxy to sales velocity on Amazon. A low BSR means high sales volume. But a single BSR snapshot is misleading; the trend over weeks or months matters far more than any one data point.
BSR ranges by category: A BSR of 5,000 in “Home & Kitchen” represents very different sales volume than 5,000 in “Industrial & Scientific.” Always interpret BSR relative to the category size. Top-level categories with millions of listings require much lower BSRs to indicate strong demand.
Seasonal patterns: Some products spike to a BSR under 1,000 during Q4 but languish above 50,000 in summer. A BSR trend chart reveals these cycles, helping you time your purchases and avoid overstocking for off-peak periods.
BSR vs rank stability: A product whose BSR fluctuates wildly (e.g., 2,000 one week, 40,000 the next) has inconsistent demand. Prefer products with a stable, consistently low BSR. This signals reliable, repeatable sales.
Assess Competition Density
Count the number of active sellers, the FBA vs FBM ratio, and Buy Box share distribution. A listing with 20+ FBA sellers and thin margins is a race to the bottom; avoid it unless you have a significant cost advantage.
Ideal seller count: Listings with 2–8 FBA sellers often offer the best balance of demand validation and margin potential. Fewer sellers means less price pressure; more sellers indicates proven demand but slimmer profits.
Buy Box rotation: Check how the Buy Box is distributed among sellers. If one seller holds 80 %+ of the Buy Box, it may be difficult to compete unless you can match their price and fulfilment method. A more even rotation suggests the algorithm is price-sensitive and open to new entrants.
Amazon-as-seller signal: When Amazon Retail is an active seller on a listing, they typically dominate the Buy Box with aggressive pricing. Unless your landed cost is exceptionally low, competing directly with Amazon on that ASIN is usually unprofitable.
Check Price Stability
Use price history charts to evaluate pricing volatility. If the Buy Box price has fluctuated wildly over 90 days, the market is unstable and your margin projections are unreliable.
Price floor & ceiling: Identify the lowest and highest Buy Box prices over the last 90–180 days. Your profit calculation should be based on the price floor, not the current or average price. If you’re still profitable at the floor, the product is a safer bet.
Seasonal price patterns: Some products consistently rise in price during certain months (e.g., heaters in winter, fans in summer). If you can source before the price increase, your margin widens naturally with seasonal demand.
Price war indicators: Look for rapid, repeated price drops over short periods. This is a classic sign of an automated repricing war. Multiple sellers undercutting each other by pennies in rapid succession erodes margins for everyone. Avoid these listings unless the war has ended and prices have stabilized.
Timing and Seasonality
Many Amazon products have predictable seasonal demand cycles: Q4 holiday season, Prime Day, back-to-school. Source inventory BEFORE demand peaks to capture margin at higher prices and avoid stockouts during the surge.
Lead times for sourcing: Account for supplier lead times, shipping to Amazon fulfilment centres, and FBA inbound processing. For Q4 peaks, many successful sellers begin sourcing in August or September. Late sourcing means products arrive after the demand window closes.
Seasonal stocking strategies: Use historical BSR and price data to identify exactly when demand begins to climb. Ramp up inventory 4–6 weeks before the peak. Overstock slightly for proven winners; stay lean on experimental SKUs to avoid long-term storage fees.
Off-peak buying advantages: Suppliers often offer better unit prices during their slow seasons. Negotiate bulk discounts when demand is low, and warehouse the inventory until the next seasonal cycle. This approach requires capital but significantly improves per-unit margins.
Marketplace Arbitrage
Compare the same product across multiple Amazon marketplaces. A product saturated on Amazon.de may have low competition on Amazon.it or Amazon.pl, opening up significantly higher margins for the same SKU.
Cross-border fee differences: Referral fees, FBA fulfilment costs, and VAT rates vary by marketplace. A product with a 12 % margin on Amazon.de could yield 22 % on Amazon.it simply due to lower competition and different fee structures. Always run the numbers per marketplace.
Pan-European FBA: Amazon’s Pan-European programme distributes your inventory across EU fulfilment centres, enabling Prime delivery in multiple countries from a single shipment. This dramatically reduces per-unit shipping costs and makes cross-border selling operationally simple.
Currency considerations: When selling across marketplaces with different currencies (GBP, SEK, PLN, EUR), factor in currency conversion fees and exchange rate fluctuations. Amazon’s Currency Converter for Sellers (ACCS) charges approximately 1.5 %, which should be included in your margin calculation.
SellerMagnet Sourcer covers all six pillars automatically and gives you a single dashboard to track profitability.
Source Smarter, Whatever Your Business Model
Whether you’re launching your first product or scaling across marketplaces, Sourcer adapts to your workflow and budget.
New Sellers
Stop guessing, start sourcing with data.
FREE for accounts under 50 orders/month
- Validate product ideas before your first purchase
- See net margin after all fees before ordering inventory
- Compare FBA vs FBM profitability visually
Scaling Resellers
Speed matters when you’re evaluating dozens of products per week. Analyze any ASIN in seconds.
- Chrome Extension for instant analysis while browsing Amazon
- Price history to spot seasonal trends and price wars
- Competitor analysis with seller count and Buy Box share
Agencies & Wholesalers
Research products across all Amazon marketplaces from a single tool, ideal for cross-border selling.
- 20+ Amazon marketplaces supported worldwide
- Competitor intelligence on every listing you evaluate
- Included in every plan with Repricer, Listing Optimizer & more
Free for accounts under 50 orders/month · CC required
Free Amazon Tools Included
Each tool solves a specific problem in your FBA or FBM workflow. No account required.
Amazon Fee Calculator
Use the free Amazon FBA & fee calculator to estimate product profitability before you order inventory. Enter an ASIN, choose your marketplace and set the sale price to preview FBA vs FBM fees, referral fees, estimated revenue, profit and ROI.
- FBA vs FBM side-by-side comparison
- Referral, fulfillment & closing fees
- Profit margin & ROI estimate
FBA Fees
$5.40
FBM Fees
$3.22
Revenue
$29.99
Profit
$12.37
ROI
71%
Amazon Title Checker
Audit your product title against Amazon’s official style guide. Check character length, forbidden phrases, Title Case and 22 compliance rules in seconds.
- Title length & truncation check
- Forbidden phrases detection
- Multi-marketplace support
ASIN / UPC / EAN Converter
Convert between ASIN, UPC, EAN and ISBN product identifiers instantly. Supports bulk conversion across all Amazon marketplaces.
- Single & bulk conversion
- All Amazon marketplaces
- CSV export included
Frequently Asked Questions
Everything you need to know about the SellerMagnet Amazon Product Sourcer.
· Written by the SellerMagnet Product Team
Stats reflect average internal platform data across 2025. Rating aggregated from Trustpilot, SourceForge, SaaSHub, Slashdot and G2.
An Amazon product sourcer is a tool that helps sellers evaluate whether a product is worth selling on Amazon before committing to purchase inventory. It does this by consolidating the key data points that impact sourcing decisions: pricing dynamics, competition levels, demand signals, and profitability estimates, into a single, fast-access view.
SellerMagnet Sourcer takes this a step further by integrating a real-time profit calculator directly into the analysis flow. When you enter an ASIN (or scan an EAN, UPC, or ISBN), you don't just see the current Buy Box price; you see the estimated net profit after all Amazon fees (referral fee, FBA/FBM fulfillment, storage, closing fees), shipping costs, VAT, and your cost of goods.
The tool also surfaces competitive intelligence: how many sellers are on the listing, who holds the Buy Box, what prices competitors are offering, and whether sellers are using FBA or FBM. This helps you assess whether entering the listing is strategically viable or if you'd be walking into a price war.
Additionally, SellerMagnet provides price history charts and BSR (Best Sellers Rank) trend data, so you can see whether a product's demand is growing, seasonal, or in decline. This combination of margin analysis, competitor mapping, and historical trends makes sourcing decisions faster, more objective, and less risky.
SellerMagnet Sourcer supports all Amazon marketplaces worldwide. This includes North America (Amazon.com, Amazon.ca, Amazon.com.mx), Europe (Amazon.co.uk, Amazon.de, Amazon.fr, Amazon.it, Amazon.es, Amazon.nl, Amazon.se, Amazon.pl, Amazon.com.be, Amazon.ie, Amazon.com.tr), and Far East & Middle East (Amazon.co.jp, Amazon.com.au, Amazon.sg, Amazon.in, Amazon.ae, Amazon.sa, Amazon.com.br).
This multi-marketplace coverage is essential for sellers practising cross-border arbitrage or expanding into new regions. Each marketplace has different fee structures, VAT rates, and competitive dynamics, so the Sourcer automatically adjusts its fee calculations and profit estimates based on the marketplace you select. For example, referral fee percentages on Amazon.de may differ from Amazon.com for the same product category.
You can switch between marketplaces instantly within the Sourcer dashboard or Chrome Extension, making it quick to compare whether a product is more profitable to sell in one country versus another. This is particularly useful for FBA sellers using Amazon's Pan-European or Remote Fulfilment programmes.
As Amazon opens new marketplaces, SellerMagnet adds support promptly, so you'll always be able to source products wherever Amazon operates.
While standalone product research tools are popular, SellerMagnet Sourcer offers a fundamentally different value proposition. Many tools focus only on price-tracking charts and historical data but don’t include a built-in profit calculator or real-time competitor offer analysis. Others are oriented toward keyword and niche analysis for private-label sellers, but their sourcing-specific features are limited for arbitrage and wholesale workflows.
SellerMagnet combines sourcing, profit calculation, and competitive intelligence into one unified view. When you look up an ASIN, you see profitability estimates (including all Amazon fees and VAT), Buy Box share data, stock levels, competitor prices, and price history, all without switching between tabs or tools.
Additionally, SellerMagnet isn't just a sourcing tool. Your subscription includes a full suite of seller tools: the Repricer, Listing Optimizer, Review Request, Inventory Manager, and Amazon Alerts. With standalone research tools, you’d typically need to purchase separate subscriptions for repricing, listing optimisation, and review management, which adds up quickly.
In short, SellerMagnet replaces multiple paid tools with one affordable, all-in-one platform designed for day-to-day selling operations.
Absolutely. SellerMagnet Sourcer is designed to support all major Amazon selling models, including online arbitrage (OA), retail arbitrage (RA), wholesale, and private-label sourcing. The core functionality, including profit calculation, fee estimation, competitor analysis, and price history, is equally useful regardless of your sourcing strategy.
For wholesale and arbitrage sellers, the Sourcer's ability to instantly show net profit after all fees is invaluable when evaluating supplier price lists or scanning products in-store. You can enter your buy cost and see whether the margin justifies the purchase before committing. The competitor offer view also helps you gauge whether a listing is oversaturated with sellers, which is a critical factor in wholesale go/no-go decisions.
For private-label sellers, the Sourcer helps validate product ideas by showing real demand data (via BSR trends), current pricing dynamics, and the competitive landscape. You can estimate your target sell price, input your anticipated manufacturing and shipping cost, and immediately see your projected margin and ROI, before you even contact a supplier.
The Chrome Extension further enhances this workflow by overlaying sourcing data directly on Amazon product pages, so you can analyse listings on-the-fly without switching to a separate dashboard.
SellerMagnet pulls data directly from the Amazon Product Advertising API and Seller Partner API, ensuring that the information you see, including current prices, Buy Box status, competitor offers, and product details, is as close to real-time as possible. Price and offer data is refreshed every time you perform a lookup, so you always get the latest snapshot of the listing.
For fee calculations, SellerMagnet maintains an up-to-date database of Amazon's fee structures across all supported marketplaces. When Amazon adjusts referral fees, FBA fulfillment fees, or storage rates (which typically happens annually), our system is updated promptly to ensure your profit estimates remain accurate.
Price history and BSR data are aggregated over time to build meaningful trend graphs. The longer a product has been tracked, the more historical data is available for analysis. This is especially useful for spotting seasonal patterns, for example, identifying products that spike in demand during Q4 or drop off after holiday periods.
While no third-party tool can guarantee 100% accuracy (Amazon's own systems update continuously), SellerMagnet's data is reliable enough for professional sourcing decisions and is used daily by thousands of active sellers across all Amazon regions worldwide.
SellerMagnet Sourcer accepts ASIN, EAN, UPC, and ISBN input, which means it can be used alongside mobile barcode scanner apps for retail arbitrage (RA). The Chrome Extension also works on mobile-friendly Chromium-based browsers, giving you access to sourcing data while browsing Amazon on your phone or tablet.
While there's no dedicated mobile app yet, the web dashboard is fully responsive and works seamlessly on tablets and smartphones. The interface adapts to smaller screens, so you can view profit calculations, competitor data, and price history charts without any loss of functionality.
For in-store retail arbitrage, sellers typically use this workflow: scan a product's barcode with your phone's camera app (or a barcode scanner app), copy the resulting EAN or UPC, and enter it into the SellerMagnet Sourcer dashboard. Within seconds, you'll see whether the product is profitable to sell on Amazon, including net margin after all fees.
This makes SellerMagnet an effective companion tool for RA sourcing trips, wholesale showroom visits, or any scenario where you need to evaluate products on the go.
Yes. SellerMagnet provides multiple support channels to help you get the most out of the platform. Live chat support is available during business hours (CET timezone), and email support is available around the clock with responses typically within a few hours.
The average response time for live chat is under 5 minutes, so you can get quick answers to questions about features, workflows, or account setup without waiting. For more complex issues, the support team will follow up via email with detailed guidance.
New users receive an onboarding email sequence that walks through each major feature, including the Sourcer, Repricer, and Listing Optimizer, with step-by-step instructions and video tutorials. A comprehensive knowledge base with searchable articles and how-to guides is also available 24/7.
Enterprise plan customers receive a dedicated account manager for personalised onboarding, strategy consultations, and priority support. Support is available in English, German, Italian, French, Spanish, and Polish.
Ready to Source
Profitable Products?
Quick ROI Math (hypothetical example):
If better sourcing decisions help you avoid just 3 losing products/month at €80 loss each, that’s €240/mo saved. Add the time saved vs manual research and SellerMagnet pays for itself in the first week. Plans start at just €10/mo.

