Check out these two blog posts from 5/14:
"InfraWorks Web-Services REST API Preview" - http://civilizeddevelopment.typepad.com/
-from the Civilized Development blog
"Infraworks 360 REST API – Tech Preview available" - http://adndevblog.typepad.com/infrastructure/
-from the Infrastructure Modeling DevBlog:
Hope this helps!
I spoke with our customer services advisor, and she promised to put me in touch with someone for some better documentation. I heard nothing back despite nagging her several times. So, I did my own digging and you're in luck.
For your 'enjoyment'
The links to the documentation posted refer to the InfraWorks REST API, which is a "Cloud API" that allows access to model data for models that are published to InfraWorks 360. The REST API does not have any scripting capabilities for the desktop application, which I believe is what you are asking for.
The InfraWorks team is evaluating the work that needs to be done to provide a desktop API. Which form and capabilities it will have still to be determined. We are getting lots of questions about it, so the API is high on our priority list, but we want to insure we provide enough capabilities and functionality to make it useful before we publish it. Once an desktop API is published, extensive documentation will be provided with it.
Hope it helps,