Short a cryptocurrency, predict the next election, and bet on real world events.
Choose an event to trade on. Anything is fair game, from the next presidential election to the success of a company’s product. If a market doesn’t exist for what you want to trade, create one.
Trade on the outcome of your event by buying and selling shares in its market. Buy shares to go long on an outcome, or sell shares to short it. When you do, you're trading against other people who are taking the opposite trade.
Users who hold shares of the winning outcomes are paid out from the market contract when the market is resolved.
Turn political knowledge into predictive power by trading on the outcome of upcoming elections, potential policy decisions, and other political events.
Hedge against catastrophic events like natural disasters, market crashes, and geopolitical upheaval by betting that the event will occur.
Harness the power of crowds to create a more accurate weather prediction tool for events like hurricane landfalls, heat waves, and daily temperature averages.
Short a cryptocurrency or predict the next bullrun. With user created markets, you can have exposure to all sorts of cryptocurrencies and assets.
Trading fees go directly to market creators and reporters. There's no third party making money from your trades.
There are no limits on what markets can be created. If you want to trade on it, a market can be created for it. 
No limits or trade restrictions. Any order size will be executed as long as there is a willing counterparty.
Augur is a permissionless protocol. Anyone, anywhere in the world can participate.
Trading on the Augur protocol is done with Ethereum, the decentralized world computer. As one of the most widely-used cryptocurrencies, Ethereum helps make trading on Augur accessible to all.
REP is used for reporting on and disputing the outcomes of events. REP holders are rewarded for reporting the correct winning outcome of the event after it occurs, while others can dispute if they don't agree.
If you have a specific issue you would like to report, open an Issue in the relevant Github repository. If you have code you would like to contribute, open a Pull Request. Directions for setting up a local development environment can be found in each repository.
The Augur Github repositories can be found at github.com/AugurProject.
The repos under most active development are: