Amazon PA-API vs Keepa for price data on review sites
If your roundup shows live prices, you're choosing between the official API and a scraper-grade history service.
Amazon Product Advertising API
Pros
— Official, ToS-clean, returns image/title/price in one call
— Free to start once you have a tracking ID
Cons
— Brutal rate limits tied to your sales — no sales, near-zero requests
— Loses access entirely if you don't drive qualifying sales in a window
Keepa
Pros
— Full price history + drop alerts — you can show "lowest in 90 days"
— Not gated behind your affiliate sales volume
Cons
— Paid subscription; reselling/displaying data has ToS limits
— Not an official affiliate-link source
For: PA-API for compliant live price + buy buttons. Keepa for price-history widgets and "is this a real deal" credibility content.
Gotcha nobody mentions: New PA-API accounts get suspended for low sales within ~30-90 days. Plan a fallback cache or you'll show blank price fields the week you launch.
Bottom line: Buy buttons, PA-API. Price-history trust signals, Keepa.
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Amazon PA-API vs Keepa for price data on review sites
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