Use to download history for backtesting or model training. Returns one UTC day (date=YYYY-MM-DD) of trade-flow candles for a symbol at 1m, 5m, 15m or 1h, separately per venue (on-chain DEX pools and Solana DEX pools for tokenized stocks): OHLCV, aggressor buy and sell volume, buy pressure, VWAP and trade count, as JSON or as a CSV file (format=csv). What exists is listed free at /api/v1/datasets.