I am responding a little too late (7 Years later) but hey, we recently launched
Trading APIs. We did this to enable traders to execute their trading strategies in a more seamless way and without manual intervention if that's what they're looking for. They can configure checks and balances their end and customize the trading experience. To get access to our free APIs, you will have to register your details in the link above.
(Please note that the APIs are made available for free only to active traders with trading strategies, platforms, websites, etc. You will need to request access in the above link to be able to use API and it is only available for trading purposes. We're just selective about who we make it available to).