Their data (quantgo) seem very constrained. Only US data, for futures only trades and top of book quotes, for options only opera feed, for stocks only top of book and trades. I was looking at something more comprehensive hence did not consider quant go further. Their information on their website is outdated and not accurate.
I too require an API solution for global intra-day data via an API.
I currently use historical end-of-day data for over 13k assets from Metastock. Their data comes from Thompson Reuters and is great quality. I've had to jump through a few hoops to extract the data from the Windows based Downloader application to an OSx based solution but it's pretty much automated now (well sort of!)
The next stage is to obtain intraday data for analysis.
I've had a look at quantgo and it looks pretty good. They offer a cloud solution to obtain the data in their cloud only. However, there is nothing stopping anyone from developing their own software (running in their cloud servers) to stream real-time quotes to your own more protected cloud servers.
Note - this streaming suggestion is for analysis of data purposes only and is not for real-time execution - before anyone starts banging on about delays etc!
Interestingly, their solution is AWS based, which is annoying because I developed my solution based on GCloud (Google) - oh well.
I'm going to find out more and will report back. Interested to hear any other ideas anyone may have.
