Download
BAI for Windows
Version 0.1.0. One installer, no administrator rights, installs for your user only. About 40 MB to download, about 200 MB on disk: the app carries its own trading engine so nothing else needs installing.
Download BAI 0.1.0 for WindowsWindows 10 or 11, 64-bit
Early builds are not yet signed with a company certificate, so Windows SmartScreen may say the publisher is unknown. Click More info, then Run anyway, only when you downloaded the file from this page. Signed builds are coming; until then check the file's SHA-256 against the value on the release page.
What you need
A Windows PC that stays awake while the desk is armed, a brokerage account at a supported broker, and, optionally, your own market-data keys. A paper account works for everything except real money.
Brokers
Alpaca today, with paper accounts supported. Schwab is in progress and depends on their partner programme. The desk trades whole shares of US equities; options are research-only.
First run
Read the risk disclosure, create an account, connect your broker, and try the practice tape first. Arming for real money asks for a phrase you have to type. It is meant to be slow.
Updates arrive inside the app and are never installed while the desk is armed or holds a position. Release notes live on the release page. Questions: support.