Good points are covered in this blog post, however what if we would push it even further?

Why would people need to download a package? Why would anybody need to learn a programming language you package designed for (or assume you distribute packages for many programming language)?

When using APIs for integration or mashups, especially in business world, person who know how solution should looks like may not have time to code. So we at http://elastic.io think API could be via visual designer.

We believe it's also a way to make API usage _simpler_ for enduser, even the one who can not, or have no time to code.