BankAPI
This is a cool project, but considering how over-regulated banks are these days (at least in Europe) I think it's very unlikely that they would actually use this. Most bank software is still written in Cobol code that they have invested four decades into and are now too afraid to rewrite or even touch. So, specifying the requirements for an interbank message system would probably take them a few years already, and implementing it in a "proper" way -i.e. confirming to all their regulatory requirements- would take ages (also, they will probably already have a system for this in place).That being said, I think for less regulated sectors of the industry this could be a very interesting project.