Google Shopping search - returns product listings with titles, prices, sellers, ratings, delivery info, and product links. Use for price comparison, product research, or e-commerce intelligence. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.