Brokers

IB

Probably the main broker you should be using if anywhere else but the US

• ib_insync: python asyncio based api around the TCP message protocol
• you can be both long and short an instrument if you have more then one account
• web based symbol search utility
• api docs for tick types
• headless IB gateway instructions
• IBController user guide
• forum discussion on reliably running IBG in the cloud
• service status panel for if/when they go down (which rarely happens)
• data farm(s) connection status for geo-specific data ping testing
• margin tutorial page
• instructions on how to do internal account transfers

Questrade

• api documentation
• admin fees