Powerhouse Museum is part of the Museum of Applied Arts and Sciences in Sydney, New South Wales, Australia. It holds a diverse collection including history, science, technology, design, industry, decorative arts, music, transport and space exploration. The Museum offers a number of online collections, as well as an OPAC. An API makes the collection datasets available to developers.
The API uses a RESTful protocol, returning responses in XML, JSON, JSONP, YAML, and XML. The catalog can also be queried using YQL.