In addition to a real-time data streaming service, we provide access to a database of historical market data. The CoinAPI database currently holds more than 20 TB of raw and preprocessed market data available through the RESTful protocol. CoinAPI is by far and away the best exchange data provider in the cryptocurrency space. That rule had applied to us before CoinAPI started – their team provided us with clean and accurate data sets. Access to years of valuable financial data has never been easier and cheaper – we can strongly recommended CoinAPI service.