BitcoinAverage API

BitcoinAverage
BitcoinAverage.com is an open-source data service that provide the weighted average for Bitcoin price for all major currencies, using data collected from all available exchanges. The BitcoinAverage API, using REST calls and returning JSON or CSV, allows users to query for the full data contained within the site. The API includes calls to get ticker data for bitcoin, get exchange volumes for each exchange, and also historical data per hour and per day for average prices and volumes per exchange. Data updated every minute.