The idea is to develop a series of mobile and desktop products covering all manner of financial transactions: apps to help people open accounts; access credit; place orders for shares and communicate with each other and their financial service providers. Trade It, the first product, will focus on the third of these areas. It’s an API-based service that lets people place orders for trades instantly and securely directly on third-party sites, apps or Twitter.

http://techcrunch.com/2015/09/08/trading-ticket-gets-4m-from-thiels-valar-ventures-citi-launches-instant-trading-tool-trade-it/#.bultfn:jiAD