The challenge: Build an AI agent that uses BuyWhere's MCP-native product catalog API to do something useful with real commerce data. Win a 15-inch M3 MacBook Air. BuyWhere is an AI-native product catalog API — real pricing, availability, and product details delivered as first-class MCP resources for AI agents. We're running a developer challenge to see what developers actually build when they have product data attached to their agent. What to Build Any AI agent that uses BuyWhere's MCP server to access real product data. The agent should do something useful — product lookup, price comparison, inventory check, shopping list optimization, deal finding — your call.…