Option Expiration Spot Price Feeds and APIs

Binance

https://api1.binance.com/api/v3/klines?symbol={quote_currency}{base_currency}&interval={interval}&startTime={start_ms}&endTime={end_ms}

https://api.exchange.coinbase.com/products/{quote_currency}-{base_currency}/candles?start={start}&end={end}&granularity={interval}

https://api.kraken.com/0/public/OHLC?pair={quote_currency}{base_currency}&interval={interval}&since={start}

https://www.okx.com/api/v5/market/candles?instId={quote_currency}-{base_currency}&bar={interval}&before={start_ms}&after={end_ms}

https://api.kucoin.com/api/v1/market/candles?type={interval}&symbol={quote_currency}-{base_currency}&startAt={start}&endAt={end}

https://api.lbkex.com/v2/kline.do?symbol={quote_currency}_{base_currency}&size=1&type={interval}&time={start}