US Treasury Interest Rates API

The US Treasury (UST) Interest Rates API (beta) from EODHD provides structured, user-friendly access to official US Treasury interest-rate datasets - including Treasury bill (T-Bill) rates, long-term rates, the nominal par yield curve, and the real yield curve - delivered as time series that are widely used for macro research, fixed-income analytics, discounting/cost of capital, yield-curve modelling, and building risk-free rate baselines in trading and portfolio systems. The API is organized into four core endpoints (Bill Rates, Long-Term Rates, Yield Rates, Real Yield Rates), supports filtering by year (defaulting to the current year when omitted), and consumes 1 API call per request. Available to free and paid users.