From their site: GovTrack.us tracks the U.S. Congress and is a reference for legislation, votes, Members of Congress, congressional districts, and the congressional record. The database that powers the site is also made freely available, and several APIs are available. APIs are URLs on GovTrack that serve XML rather than HTML. They are intended to be called by applications to retrieve data dynamically.
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.