ExanomicDocs
OverviewAuthenticationEnvironments
OverviewInflationLabor MarketInterest RatesGDP & OutputSeries EndpointsObservationsTreasury APICorrelation API
ExanomicDocs

Interest Rates & Monetary Policy

Track interest rates across the yield curve including Federal Funds rate, Treasury securities from 3 months to 30 years, and money supply data. Essential for understanding monetary policy, bond markets, and borrowing costs throughout the economy.


Use Cases

  • Monitor Federal Reserve policy changes and interest rate expectations
  • Analyze yield curve shape for recession signals and economic forecasting
  • Track Treasury yields for bond portfolio management and valuation
  • Calculate spreads between different maturities for relative value analysis
  • Model impact of interest rate changes on equity valuations and credit markets

Plan Access

Free
Pro
Enterprise

Data Recency

Free: Updated daily
Pro: Updated daily
Enterprise: Updated daily

Historical Data

Free: All history
Pro: All history
Enterprise: All history

Available Series

FEDFUNDS

Federal Funds Rate

Target interest rate at which banks lend to each other overnight, set by the Federal Reserve

Frequency:daily
Units:%
SOFR

Secured Overnight Financing Rate

Benchmark interest rate for dollar-denominated loans and derivatives

Frequency:daily
Units:%
TREASURY_3M

3-Month Treasury Bill

Short-term Treasury security with 3-month maturity

Frequency:daily
Units:%
TREASURY_1Y

1-Year Treasury

Treasury security with 1-year maturity

Frequency:daily
Units:%
TREASURY_2Y

2-Year Treasury

Treasury note with 2-year maturity, sensitive to Fed policy expectations

Frequency:daily
Units:%
TREASURY_5Y

5-Year Treasury

Medium-term Treasury note with 5-year maturity

Frequency:daily
Units:%
TREASURY_10Y

10-Year Treasury

Benchmark long-term interest rate for mortgages and loans

Frequency:daily
Units:%
TREASURY_30Y

30-Year Treasury

Long-term Treasury bond with 30-year maturity

Frequency:daily
Units:%
SPREAD_10Y2Y

10-Year minus 2-Year Spread

Yield curve slope; negative values may signal recession

Frequency:daily
Units:%
M2

M2 Money Supply

Broad measure of money supply including cash, deposits, and money market funds

Frequency:monthly
Units:Billions USD

How to Query Interest Rate Data

Get Current Treasury Yield Curve

curl -X GET "https://api.exanomic.com/v2/curves/treasury" \
  -H "X-API-Key: your-api-key-here"

Track Federal Funds Rate Changes

curl -X GET "https://api.exanomic.com/v2/series/FEDFUNDS/observations?limit=50&sort=desc" \
  -H "X-API-Key: your-api-key-here"

Monitor Yield Curve Inversion (Recession Signal)

curl -X GET "https://api.exanomic.com/v2/series/SPREAD_10Y2Y/observations?limit=1&sort=desc" \
  -H "X-API-Key: your-api-key-here"

Understanding Interest Rate Data

The Yield Curve

The yield curve shows the relationship between interest rates and time to maturity for Treasury securities:

  • Normal curve: Long-term rates higher than short-term (positive slope)
  • Inverted curve: Short-term rates higher than long-term (negative slope) - historically precedes recessions
  • Flat curve: Similar rates across maturities - signals economic uncertainty

Federal Reserve Policy

The Fed sets the Federal Funds rate to influence economic growth and inflation. Rate increases slow the economy and reduce inflation; rate cuts stimulate growth. The 10-year Treasury yield reflects market expectations for long-term growth and inflation.

Data Sources

Federal ReserveU.S. Department of the Treasury