Industry-vertical index for the public-sector / government API landscape across U.S. federal, state, and local levels.
Free API management gateway operated by GSA's Technology Transformation Services, fronting 450+ APIs across roughly 25 federal agencies.
U.S. federal open data catalog, powered by CKAN.
Federal regulatory dockets, documents, and public comments.
Daily Federal Register published by the Office of the Federal Register and GPO.