I use data.nasdaq.com (formerly quandl.com). It has reasonable a la carte pricing. Source: over 1 year ago

No chance. even getting just daily open, high, low, close, volume data will be costly. maybe look at quandl.com as well ? Source: about 3 years ago

This happens a bit too frequently. It may be time to finally migrate over to the other free option that is certainly more reliable - quandl.com. Source: about 3 years ago

As mentioned, I am sure that stockdata.org is not legit. Source: over 2 years ago

So then I stumbled upon stockdata.org which advertises commercial use plans as low as $9/month. My guess is it's so cheap because their data is relatively limited? (It doesn't even show bid/ask price, for example.) Then I was reading another company's website, Xignite specifically, which goes to great lengths to explain that not only do you need to pay them, the distributor, but you also need to pay the exchanges,... Source: over 2 years ago