U.S. Treasury Fiscal Data API Free, open REST API from the U.S. Department of the Treasury for federal financial data. No API key or registration required. Base URL: Browse the current dataset catalog via the dataset search. Verify endpoint paths on each dataset's API Quick Guide — paths change over time. Installation Quick Start Authentication None required. The API is fully open and free. Core Parameters | Parameter | Example | Description | |-----------|---------|-------------| | | | Select specific columns | | | | Filter records | | | | Sort (prefix for descending) | | | | Output format:…