want to use some data for option

Hello my friends! I am developing a options and futures trading tools with Binance API for my boss. We want time series data(2020-2021) for multi-products category(BTC\ETH\so on). Do anyone know: why all the options data we get are for BTC, and how to trace back these options price in history


The available symbol can be found in this endpoint, if you do not see it here that means it is not available for trading.