The Capital One Android SDK by Capital One allows to implement banking features into Java & Android applications. Includes installation with jar and usage with singleton. Nessie, the site in which public data is available, is Capital One’s Hackathon API.
What happens when Joe Investor ("sophisticated" or otherwise) backs too many ventures that go bust that take him down with them? Now that crowdfunding is legal thanks to the JOBS Act passed in 2012, scenarios like this and worse have the potential of becoming much more frequent. But just because it's legal doesn't mean it's free of regulation. In fact, the regulations that are still being hammered out promise to be fierce. How will a crowd sourcing investment site, or an enterprise looking for financing on one of those sites, keep track of it all? Actually, that may not even be possible--unless the funding portal uses a service like the Crowdbouncer API.