Are there any simple HTTP APIs out there which will let me get the stock price for a symbol (such as GOOG) at a specific date and time?
Something like…
http://somewebsite.com/?
symbol=GOOG&
year=2010&
month=7&
day=30&
hour=4&
minute=00
Giving a response of $484.85
I’m hoping to have an end result of a haskell function whose type signature looks something like…
getQuote :: Symbol -> Date -> Time -> Price
I believe YQL with Yahoo finance can complete this task, they have data going back to 1996 looking on some stocks.
http://www.yqlblog.net/blog/2009/06/02/getting-stock-information-with-yql-and-open-data-tables/
http://www.gummy-stuff.org/Yahoo-data.htm