TL;DR Keepa is the standard price and sales rank tracking tool for Amazon FBA sourcing. The browser extension is free; the full seller toolkit (Sales Rank history, Product Finder, Buy Box data) costs approximately $21/month (EUR 19) billed in euros. The core sourcing workflow is: find a price drop in Keepa Deals, confirm the price history shows a stable product with a temporary dip, check the sales rank is consistent, validate the ROI, then buy.
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Keepa is an Amazon price and sales rank tracking platform that monitors over 6 billion products across 19+ Amazon marketplaces. It embeds price history charts directly into Amazon product pages and provides a standalone database for proactive product research. For FBA sellers, the Sales Rank history and Buy Box tracking features are what separate good sourcing decisions from guesses. |
Keepa does not make sourcing decisions for you. It gives you the historical data to distinguish a genuinely attractive deal from a temporary price experiment or a product in structural decline. For a broader look at product research tools, see our guide to Amazon product research.
What Is Keepa and What Does It Cost?
Keepa was built in Germany in 2011 and now tracks over 6 billion Amazon products across 19+ marketplaces. More than 5 million users install the browser extension.
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Feature |
Free |
Paid (Pro) |
|
Price history charts on product pages |
Yes |
Yes |
|
Basic price drop alerts |
Yes |
Yes |
|
Sales Rank history |
No |
Yes |
|
Buy Box history and tracking |
No |
Yes |
|
Product Finder (50+ filter criteria) |
No |
Yes |
|
Deals section (full access) |
Limited |
Yes |
|
Seller Lookup |
No |
Yes |
|
Data export (ASIN lists) |
No |
Yes |
Paid plan: approximately $21/month (EUR 19) or $207/year (EUR 189). Keepa prices in euros — the dollar equivalent varies with exchange rates. Verify current pricing at keepa.com before purchasing.
For FBA sourcing, the paid plan is necessary. The free tier gives you a price chart on any product page you visit, useful for checking individual listings. It does not give you the Sales Rank history or Product Finder features that make Keepa powerful for systematic sourcing.
What Are the Key Keepa Features for FBA Sourcing?
Price History Chart
The chart embeds directly into every Amazon product page when you have the browser extension installed. It shows historical pricing across multiple offer types: Amazon’s own price, new third-party sellers, used, and Warehouse Deals.
What you are looking for is a flat line that suddenly drops. A stable price over months that just fell is a fundamentally different signal from a product that has been on a downward drift for a year. The flat-then-drop pattern is what makes a deal worth investigating. The slow decline is not.
Sales Rank History
The sales rank line shows how a product’s Best Seller Rank has moved over time. BSR and sales velocity are directly correlated: a product with a consistently low BSR sells regularly. A product whose BSR only improves when its price drops is telling you the demand is price-sensitive, not structural.
What good looks like: a BSR that moves up and down within a reasonable range but consistently returns. Products whose BSR only reaches your acceptable range during a price drop are speculative buys, not reliable inventory.
Product Finder
Product Finder is a search database inside Keepa that lets you query across 50+ filter criteria simultaneously: category, BSR range, price range, rating, review count, offer count, price drop percentage, stock status, and more. This is where proactive sourcing happens — instead of waiting for a deal to appear, you query for products that already match your criteria.
Deals Section
Keepa’s Deals section shows recent price drops across Amazon, filterable by category, percentage drop, current price, and sales rank. This is the reactive sourcing workflow: a price falls, Keepa logs it, you filter the feed for drops that match your criteria.
Buy Box History
The Buy Box tab shows who held the Buy Box over time and at what price. For sourcing, it tells you whether Amazon frequently holds the Buy Box (making FBA sourcing harder), and whether the Buy Box price is typically above the price you would need to profit.
How to Find Sourcing Opportunities Using Keepa Deals
Open the Deals section on keepa.com and apply filters in this order:
- Category. Start with the categories you sell in. Unfamiliar categories have different BSR dynamics and different competition profiles.
- Sales rank ceiling. Set a maximum BSR appropriate for your category and business model. A BSR threshold of 150,000 works for many general merchandise categories, but Electronics or Clothing may require tighter limits.
- Percentage drop. Filter for significant drops (30%+) rather than small ones. Small drops on low-priced products rarely leave enough margin after FBA fees.
- Current price. Filter out products priced so low that no realistic resale margin exists after referral fees and FBA costs.
The deals that meet all four filters are candidates for chart validation — not automatic buys.
How to Read a Keepa Chart to Validate a Deal
What does a good price history look like?
A product worth sourcing has a flat or gently fluctuating price over months or years, with a clear, recent drop. Three patterns to avoid:
Amazon experimenting with pricing. You will see this as a staircase pattern — price drops in steps, holds briefly, then steps down again or reverts. Amazon is testing price elasticity. The stable price may return, but you cannot rely on selling at a spread when Amazon controls the direction.
Seasonal pattern. A product that drops every November and recovers in January sells on seasonal dynamics. Timing matters; buying in February expecting to hold for a year is a different calculation.
Slow decline. A price that has been declining gradually for 12 months signals increasing competition or falling demand. A sudden additional drop looks like a deal. It is not.
What does a good sales rank history look like?
The BSR should move within a consistent band. Hills and valleys are normal. What matters is whether the BSR consistently returns to a range that indicates regular, sustained sales. If it only reaches your acceptable range when the price is low, buyers are responding to the deal — not purchasing at the normal price you need to generate margin.
What do Amazon stock-outs tell you?
When Amazon’s own price line disappears from the chart, Amazon ran out of stock. Frequent stock-outs in a product’s history indicate real, sustained demand that Amazon itself cannot always keep up with. This is a strong positive signal for FBA sourcing — buyers exist and Amazon has not locked down the supply permanently.
The 5-Check Sourcing Validation Before You Buy
|
Check |
What you are looking for |
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1. Price history pattern |
Flat baseline with a clear, recent drop — not a slow decline or staircase |
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2. Sales rank consistency |
BSR stays within your target range across time, not only during price drops |
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3. Amazon stock-out history |
Gaps in the Amazon price line confirm real demand |
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4. Offer count |
Current number of sellers is low or recently decreased — check FBA vs FBM split |
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5. ROI after all fees |
Margin holds after referral fee, FBA fulfillment, storage, and inbound placement. Use Seller Central FBA Revenue Calculator. See current rates in the Amazon FBA fees guide. |
Failing any one check does not automatically disqualify a product. It raises the risk profile. Failing two or more usually means a pass.
How to Use Keepa Product Finder for Proactive Sourcing
While the Deals section is reactive, Product Finder lets you search before a price drop happens. A basic query for retail or online arbitrage sourcing:
Category: your target category. Sales rank ceiling: within your BSR target. Reviews: 50+ (proven demand). Rating: 3.8+ (lower ratings produce more returns). Offer count: under 10 new sellers (higher competition compresses margin). Stock: in stock.
Export the results and run each candidate through the FBA Revenue Calculator. Products that pass the calculator check then go to full Keepa chart validation before any buy decision.
See our separate guide on how to use Keepa for a full walkthrough of the chart reading interface and alert setup.
Frequently Asked Questions
What is Keepa used for in Amazon FBA?
Keepa is used for two main jobs in FBA: validating sourcing deals and conducting proactive product research. For validation, it shows price history and sales rank history so you can confirm a price drop is a genuine opportunity. For proactive research, the Product Finder lets you query across 50+ filters to find products matching your sourcing criteria before a deal appears.
Is Keepa free for Amazon sellers?
The browser extension and basic price history charts are free. The seller-focused features — Sales Rank history, Buy Box history, Product Finder, full Deals access, and data export — require the paid plan. As of 2026, the paid plan costs approximately $21/month (EUR 19) or $207/year (EUR 189). Keepa prices in euros. Verify current pricing at keepa.com.
What is a good sales rank for FBA sourcing in Keepa?
It depends on the category. A BSR of 150,000 is a common upper ceiling for general merchandise categories, but the right threshold varies: Books with a BSR of 500,000 may still sell regularly, while Electronics often requires a much tighter range (under 50,000). Research your specific category’s typical sales velocity at different BSR levels before setting a fixed threshold.
What does it mean when the Amazon price disappears on a Keepa chart?
A gap in the Amazon price line means Amazon ran out of stock during that period. Frequent stock-outs over the product’s history indicate strong, real demand that Amazon cannot consistently satisfy. This is a positive sourcing signal — buyers exist, and you can fill the gap when Amazon is out. It also suggests the product sells through quickly, reducing storage fee exposure.
How is Keepa different from CamelCamelCamel?
Both tools track Amazon price history. CamelCamelCamel is free and works well for consumers checking whether a product is at a genuine low. Keepa adds Sales Rank history, Buy Box tracking, Product Finder, and seller-level data — the layer of information FBA sellers need to make sourcing decisions. For casual shoppers, CamelCamelCamel is sufficient. For FBA sourcing, Keepa Pro is the industry standard.
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