WHY LOCAL, BY DESIGN
Compliant by Design, Not by Accident
MyLinedChart is a local desktop app for one deliberate reason. The obvious way to build it — a cloud service streaming charts from our servers — would make us a market-data redistributor in the exchanges' eyes. Going that route through IBKR means a ~$60k Web API integration fee, and exchange market-data licenses on top of that (a separate, additional cost), plus a 250-active-user gate before you can even apply.
So we built the other way. The app runs on your machine, connects to your own IBKR session, and shows data under your own subscriptions — nothing streams through our servers, so there is no redistribution. Your data stays yours, and the product is compliant by design. That same constraint shaped the AI layer: since the edge isn't a cloud data feed, it's letting an AI operate your local chart — confirmation-gated, never your orders.
The full reasoning is in how to legally display IBKR market data, and the connector detail is on The Connector. (Educational, not legal advice.)
