Hey Product Hunt, I'm Aidan, founder of LemMeBuyIt. 👋 This started with an annoyance. I'd ask an AI assistant what something cost, and it would answer with total confidence and get it wrong. It was quoting last season's price, or a store that had never carried the item. These models are great at reasoning. They just can't see the shelf. So we built the shelf. LemMeBuyIt is a hosted MCP server (https://mcp.lemmebuyit.com/mcp). Add it to Claude, Cursor, Grok Bot, ChatGPT or any MCP agent and sign in with your browser. There's nothing to install and no key to paste. Your agent can then: - Compare prices for the same item across 100+ U.S. retailers, matched by UPC/ASIN rather than fuzzy name matching - Check price history, so "on sale" can be checked against what the store actually charged in recent weeks - Search live promotions and coupon codes by store, category and expiry - Find resale flips ranked by ROI after marketplace fees, for resellers A real example from this week: Target showed the Sony WH-1000XM5 at $398.99, "marked down" from $399.99. The price history showed Target had it at $199.99 in early September. That's the kind of thing I want every agent to catch. Behind it, our homepage counters showed 291M+ ASIN mappings, 457M+ price-history records and about 3.3M products refreshed in 24 hours when I checked them on Oct 20. We also have a free Chrome/Edge extension that shows the same cross-store compare on the product page while you shop. Here's what I'd love from you: 1. Which store or category is missing for you? 2. If you build agents, what should a shopping tool return that we don't return yet? 3. Anything that confused you in setup? I'll be here all day answering every comment. Plans start free: https://lemmebuyit.com/pricing

LemMeBuyIt

The retail data layer for AI agents and resellers

The retail data layer for AI agents and resellers