Price Comparison

Price comparison is the aggregation of pricing data for the same or similar products from multiple retailers, presented together so consumers or analysts can identify the lowest available price without visiting each retailer individually.

Building a price comparison feature requires an API that covers multiple stores in a single response, or separate integrations per retailer combined into a unified view. The Klarna Ecom API, for example, returns results from multiple retailers including Amazon, Walmart, and Best Buy in a single query.

Effective price comparison surfaces not just current price but also normalized value - factoring in shipping costs, delivery time, and seller ratings. Price alone is rarely sufficient for a genuinely useful comparison.