Costbell is a Chrome extension developed by Costbell that aims to help users shop for highly in-demand products, such as Xbox Series S (XSX), Xbox Series X (XSX), and PS5. This fully automated bot checks the inventory on merchant websites and purchases the item for the user as soon as it is back in stock.

The main features of Costbell include auto inventory check and page refresh, auto checkout and place order, auto cart error handling, auto CVV entering, auto login, browser notifications, and email notifications. With Costbell, users can spend less time monitoring product availability and completing purchases, and instead focus on more meaningful activities. The extension handles tasks such as refreshing product pages, placing orders, handling cart errors, entering CVV information, and logging in automatically, ensuring a seamless shopping experience.

Costbell's browser notifications keep users informed when the item is in the cart or when the purchase is successfully made. Additionally, email notifications are sent to users to keep them updated on the status of their purchases, even when they are away from their computer.

Overall, Costbell is a valuable Chrome extension for users who want to effortlessly shop for high-demand products and avoid the hassle of constantly monitoring inventory availability.