supported: Currency Pair, quantity currency, price currency, btcusd. All order books consist of Level 2 data. Do not try to access it more than 600 times bitflyer btc price in ten minutes or else they'll block your IP (plus, it's unnecessary anyway; read more here ). Event Millis, order ID, execution Options, event Type.
For, bitcoin, historical data traces all the way back to August 2015. For Ethereum (ETH only, not ETC data starts in June 2016.
Historical order books can be used to simulate past market environments. For example, a large amount of buy orders for a Bitcoin currency pair may indicate there is buying pressure at a certain price, thus serving as support. Order book data is dynamic and constantly updating, making it a useful gauge for live or historical market conditions. Crypto order books provide an under-the-hood look at an exchange, recording all bids and asks live at a given moment. Below, you can browse our order book datasets. All sales are final.