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I used IB for few years. Recommend them highly. Not sure how much they charge these days. They're very flexible, have a great API and their transactional costs are cheap. You can get more info here: http://www.interactivebrokers.com/

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i use IB as my broker too. I don't think they offer data sales separately.

Thanks. Did you use them as a broker or just for their data API?

Broker... but they have no minimums.

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