Angel One
Angel One copy trading for your own accounts
Use Angel One SmartAPI as the book that leads, then fan the same ticket out to the rest of your accounts.
Angel One connects through SmartAPI publisher login. After you approve the app, CopyTrading stores that session token and reads the order book on your master desk.
Children do not have to be Angel One. A fill on your Angel One master can land on Zerodha, Dhan, Groww, or any other wired broker once the same NSE or BSE instrument is resolved.
This is own-account copy only: you are not following a public Angel One trader. Quantity per child is a multiplier you set; shadow mode logs the ticket without sending it to the exchange.
How you connect
Register the CopyTrading callback URL on your SmartAPI app, then connect Angel One from the watch desk.