See here for broker setup guides.

• Sterling Technologies (Echo, Cyber Trader, etc)
• InteractiveBrokers
• Assent (used without permission of Assent, this site is not affiliated with or endorsed by Assent)
• A virtual broker for trading outside of market hours
• Genesis Securities
• Deutsche Bank DBFX (send and cancel orders only at present)

BETA Broker support (let us know if you can test these brokers)

• TD Ameritrade (one symbol only at present)
• MB Trading
• Blackwood

Data Providers Supported:

• eSignal (live and historical data)
• CQG (purchase inexpensive historical data from CQG and import
• TradeStation (historical)
• Live data from any of supported brokers, and auto-recording of live data.

All trademarks are holders of their respective holders and are used WITHOUT permission.

See here for broker setup guides.