Is there a Google 3d Warehouse API?

Does anyone know if there is an official or unofficial API for Google 3D warehouse. I know of the iPhone app NaviCAD, which shows Collada models from Google Warehouse - it has search, most-viewed, most-recent functionality; so I guess it is usin开发者_Go百科g some sort of API to get that data. But I couldn't find any auch api after searching around. Do you know if there is any?

I think you are out of luck; from Google Sketchup API Blog:

• Removed Client Warehouse SDK from the package. If you need support on this please post your contact info to the SDK support group.