Getting historic exchange data through an API I'm trying my hands on a trading bot, but I need a website to pull trade data for min. the last 3 days. This can be from any major exchange. Eg. the exact same as this:
https://www.bitstamp.net/api/transactions/

But this only allows retrieval of transactions max. 1 hour old (or am I wrong?)
Have a look at the API of Bitcoin Charts. They have trade data available for all the major exchanges but delayed by 15 minutes. You can then fill up the gap using the available exchange APIs.