JASA allows researchers in agent-based computational economics to write high-performance trading simulations using a number of different auction protocols. The software also provides base classes for implementing simple adaptive trading agents.
Mircrogrid market is a proof-of-concept implementation of a combinatorial heat and power double auction exchange.
With this platform energy consumers and producers can buy or sell heat and power resources on demand for certain times of the day.
BidNobble is a Java based eBay auction tool. You can track eBay auctions and the snipe tool allows you to schedule your bid to be placed seconds before the auction ends. IMPORTANT: download and support on the homepage, the downloads here are out of date!
Auction Mage is a sniper software to manage and bid on your online auctions. It has many features: multi-language, bid now, bidding groups, timesync, $ and euro support, RAS connect, browser control (server mode), ...
DealerSys is a flexible retail e-commerce system for businesses which do not
fit mainstream e-commerce systems. It handles items sold by length, area or volume, unique items, and auction items.
auctionANT is an auction management tool.
It uses endofauction mails to generate a customer db and
send automatic payment instructions.
It also manages incoming money, ...
It is written in Java so it is platform independent.
Windows, Linux, Solaris
Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
Auctioner is an eBay-stylish auction software. It is intended as an example for the book "Portale und Webapplikationen mit Apache Frameworks" ed. Fabian Theis, but it may serve as a starting point for further development as well.
Gavel is a Web application for hosting charity auctions online. It was orginally developed for use by a public broadcasting station and is being refactored for general use.
This features a text based, interactive auction manager programmed in Java. I think it is not full functional for a "real" use, but may serve as a basis to anyone who wishes to implement his/her own auction system.