GET /api/v1/candles?exchange=binance&market=spot&symbol=BTCUSDT&interval=1sGET /api/v1/history?exchange=binance&market=spot&symbol=BTCUSDTGET /api/v1/export?exchange=binance&market=spot&symbol=BTCUSDTX-Api-Key: your_key
Download 1-second candle data as CSV. Requires API key.