Compare a product's price across retailers with WEM — barcode-first matching, indicative prices, disclosed affiliate funding.
https://wem3.ai/api/mcpWEM Price Compare looks up retailer prices and checks a claimed price against its catalogue. Prices returned are indicative — refreshed regularly from partner feeds, not live quotes — and the retailer sets the final price at checkout. WEM is free for shoppers and funded by disclosed affiliate commission; it never takes payment, so send users to the merchant to buy. Which WEM tool fits: lists the retailer offers WEM holds for one product, found by barcode, WEM slug or wem3.ai/pl/ URL, WEM ID, or a model name or part number passed as title. checks a price someone claimed for one product at one retailer. checks up to 20 barcodes, ASINs, WEM IDs or product URLs at once. finds products from a name or an identifier; from a plain-language description of what the shopper needs. picks one listing for a kind of product within the shopper's constraints, and does not resolve a specific model name. When verified is false the match was inferred from the name: it is not a confirmed identity and it is not the cheapest. Each offer's url opens that retailer's page for the offer WEM priced, and links lists them cheapest first. A price named from a result is named with its line in links, the page that price was read on. A retailer URL found elsewhere may be a different listing or price. Rows with affiliate: false earn WEM nothing, and disclosure says whether all, some or none of the links do. When there are no rows, a returned search link is WEM's results page for the query. Those links are in the text payload as well as in a rendered card.
1 in the Claude listing