Abstract: The embodiments generally relate to systems and methods for an online marketplace for goods and services. The systems and methods involve a hardware processor that receives attributes for a good or service from the seller terminal, generates pricing data for the good or service using a price estimator and market analyser, and processes the attributes for the good or service using a condition analyzer. The systems and methods facilitate a product or service listing using an interface between a seller terminal and at least one of a dealer terminal, and a buyer terminal to generate and provide a listing for the product or service. The systems and methods can facilitate a product or service listing using an interface between a seller terminal and at least one of a dealer terminal, and a buyer terminal with an auction/transaction conductor to list the product or service, including in an auction in some embodiments.