We built a series of web scrapers across a number of high-volume e-commerce platforms. Leveraging additional web scrapers and the many Amazon APIs readily available, we automated the process of comparing products, re-pricing, and quantity change detection in a near real-time data warehouse. This information was passed in an automated process to human evaluators who made the final decision to sell the products on the Amazon platform. Auto re-pricing and re-scraping algorithms were also built into the machine to avoid the catastrophic scenario of selling a product that was out-of-stock with the supplier.