Absolutely not. Your capital never leaves your Binance account. When creating your API key on Binance, you must leave the "Withdrawal" box unchecked. Kairós only has permission to execute trades.
Since Kairós uses a maximum of 10% of your capital per trade for risk management, and Binance requires a $5 minimum per trade, we highly recommend having at least 50 USDT in your Binance Spot wallet.
No. You pay for 30 days of access. At the end of the 30 days, the bot stops. You decide if you want to renew manually from your dashboard.