Louis is a collection of, at present, some 300,000 Federal Government documents, scraped daily from the Government Printing Office website, GPO Access. This API is a web framework for accessing the collection. Essentially, you can pass filtering parameters to document feeds, and receive results in XML syndication format. The overall scheme is based on Google's GData API.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.