What specific (Forex, Crypto, Indices) are you planning to analyze?
Crucially, Dukascopy tick data does include true tick volume (number of contracts/units traded) because Forex is an OTC market. The "tick volume" in JForex is merely the count of price changes, not actual trading volume. dukascopy+historical+data
JForex does not store every single timeframe permutation. Instead, it stores only four core time-based periods: What specific (Forex, Crypto, Indices) are you planning
from datetime import datetime, timedelta import dukascopy_python What specific (Forex