How to write a Exchange Bot

[Shoxc]

Hello,

I am currently trying to build an own Kraken/Poloniex/Bittrex trading bot for my personal usage - maybe open source it, if I can get it running.
My problem is, that the APIs of those exchanges aren't really providing any informations about the candles - at least I didn't find any.

Does someone here know about an exchange where the API provides you with informations about single candles of a coin?

Thank you guys very much in advance.