The Debt ClockUnited States National Debt

Open data · no key required

The Debt Clock API

Small, stable JSON endpoints for the latest confirmed debt, derived figures, recent Treasury publications and annual history. Responses are static, fast and CORS-enabled.

GET

/api/current.json

Latest confirmed debt, projection rate, per-person figures, GDP ratio, source and build timestamp.

Open response
fetch('https://thedebtclock.com/api/current.json')
  .then(response => response.json())
  .then(data => console.log(data.nationalDebt.confirmed));
GET

/api/history.json

The last 30 Treasury publications, one year-end observation per year since 1993, and transparent administration boundary records.

Open responseDownload CSVOpenAPI
curl https://thedebtclock.com/api/history.json

Freshness and provenance

The current endpoint was built from the Treasury record dated 11 September 2026. The buildTimestamp tells clients when the static response was produced. Consumers should compare the record date with their own current date rather than treating a ticking projection as official.

Primary source: U.S. Treasury, Debt to the Penny.

Usage

  • No authentication or API key.
  • CORS enabled for browser requests.
  • Amounts are numeric U.S. dollars, not formatted strings.
  • Dates use ISO YYYY-MM-DD.
  • Please cite “The Debt Clock, sourced from U.S. Treasury Debt to the Penny.”