Building CryptoCloudHosting back in 2013 we struggled to find accurate and reliable pricing data on a range of cryptocurrencies from a single provider, we eventually found various providers where we could pull data from but these weren't very reliable.
Over the years we have worked to become independent of 3rd party APIs but unfortunately we didn't have the infrastructure to pull it off. Luckily an option opened for CryptoBates to take dedicated Data Centre hosting racks giving us much more flexibility, so development started.
Our API now powers nearly all of our services which require live pricing and coin data, pricing data is averaged over 24 hours and all data is JSON formatted.
One of our services currently using our new API pricing data is https://btc-gbp.co.uk