대한민국 실시간 부채 시계.

미국

Public JSON endpoints for United States. No API key required, and every response is designed to be citable.

Primary endpoint

GET /api/usa/live.json

Returns the current interpolated snapshot for United States together with baseAsOf, per-series meta, and a ready-to-quote citeAs string.

Point-in-time citation

GET /api/usa/snapshot.json?t=<ISO>

Use the snapshot endpoint when you need reproducible references in articles, notes, or research archives.

Response fields that matter

  • baseAsOf — the official release date used as the base snapshot
  • citeAs — a ready-to-paste citation string
  • meta — per-series source, source URL, and supporting-source metadata