This is a SDK for accessing Federal APIs, not just Department of Labor. It is compatible with APIs from NOAA, Department of Energy, Department of Education, Department of Transportation, the EPA, and many more. Until the Swift programming language becomes more stable, this SDK is considered to be in Beta. See the API documentation for detailed instructions on getting started, including extensive code samples.
The New York Times' (NYT) list of web services includes some impressive APIs that make it easier to access and track information about a range of interests, including best selling books, real estate, people, articles, and the United States Government. The NY Times development team has been incorporating feedback from users in order to make changes and improvements on a regular basis. Most recently, NYT developers answered a request from users to add information about bills and speeches to its Congress API:
The movement to enable ordinary citizens, aided by civic-minded programmers, to plumb the depths of government data continues today with the launch of the Apps for Californians Contest. This new mashup competition from the State of California is intended to further the goals of transparency and access.