Open, cited and portable
U.S. national debt data
Download the exact values behind this site. No account, API key or JavaScript SDK. Every dataset includes its source and build time.
JSON
Current snapshot
Confirmed debt components, projection methodology fields, derived per-person figures and provenance.
Open current JSONJSON
Historical snapshot
Recent publications, annual observations and administration boundary records.
Open history JSONCSV
Annual history
A spreadsheet-ready two-column series of record dates and nominal-dollar totals.
Download annual CSVOpenAPI
API specification
A machine-readable description of every public endpoint.
Open specificationSource and reuse
The underlying observations come from U.S. Treasury Debt to the Penny. We normalize field names, calculate transparent derived values and select historical observations as described in our methodology.
For implementation examples and field definitions, see the developer documentation.