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

https://binance-docs.github.io/apidocs/voptions/en/#get-current-limit-info-and-trading-pair-info

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