If you are building an AI agent that needs to answer "where should I buy this?", the hard part is rarely the model. The hard part is commerce plumbing. Most agent stacks can already reason. What they cannot do out of the box is query a normalized catalog, compare products across merchants, and hand users off to a real listing without scraping HTML or stitching together merchant-specific integrations. That is the gap BuyWhere is built to fill. BuyWhere gives AI agents a product catalog layer they can call through one REST API or an MCP-compatible integration path. The canonical first request is GET /v1/products/search .…