v5

latestOpenAPI 3.1.0Proprietary2026-08-031,5423,1505.5 MB
Fixed Income

Treasury daily rate series

US Treasury daily rate time series for one dataset and year. dataset is one of: par_yield, real_yield, bill_rates, long_term, real_long_term. Defaults to the current year; narrow with start/end (YYYY-MM-DD).

get/api/v2/fixed-income/treasury/rates

Query parameters

datasetstring

par_yield, real_yield, bill_rates, long_term, real_long_term.

Example:par_yield

par_yield, real_yield, bill_rates, long_term, real_long_term.

yearinteger nullable

Calendar year. Defaults to current year.

Example:2026

Calendar year. Defaults to current year.

startstring nullable

Filter: include dates >= start (YYYY-MM-DD).

Example:2026-01-01

Filter: include dates >= start (YYYY-MM-DD).

endstring nullable

Filter: include dates <= end (YYYY-MM-DD).

Example:2026-06-30

Filter: include dates <= end (YYYY-MM-DD).

Response

Daily observations for the requested Treasury rate dataset.

Example response

{
  "data": {
    "dataset": "par_yield",
    "dataset_name": "Daily Treasury Par Yield Curve Rates",
    "kind": "curve",
    "count": 250,
    "observations": [
      {
        "date": "2026-06-26"
      }
    ]
  },
  "meta": {
    "endpoint": "/api/v1/fred/us/cpi",
    "data_time": "2026-04-16T14:30:00Z",
    "response_time": "2026-04-16T14:30:12Z",
    "provider": "Sugra API v1.0.1",
    "source": "sugra_crypto",
    "attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
    "fallback_chain": [
      "sugra_crypto",
      "sugra_finance"
    ]
  }
}