The Prosper Python SDK by Brian Elliot interacts with the API to access financial features. Code includes parser configuration and JSON protocol. Requests and responses are part of the practice in the sandbox.
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.