eBay is a leading e-commerce platform that connects buyers and sellers from all around the world. It offers a diverse range of products and services, from electronics to fashion, home goods, and more. With millions of active users, eBay provides a global marketplace for businesses of all sizes to sell their products and reach a broader audience. eBay's platform includes features such as bidding, instant purchasing, and seller ratings, which help to ensure a safe and reliable buying experience. eBay is a trusted and established platform that continues to evolve and innovate, providing a comprehensive suite of tools and resources for businesses to succeed in the e-commerce world.

MongoDB is an open source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL) which is deemed non-free by several distributions.