Real Yield Curve (TIPS)

Get the real yield curve of a variety of countries: the yields of inflation-linked government bonds, which pay a return on top of inflation, by maturity. Together with the nominal curve (see fixedincome.get_government_bond_yield_curve) it gives the inflation the bond market expects, see get_breakeven_inflation_expectations.

Every curve comes from the official source without an API key:

• United States: the U.S. Department of the Treasury’s real par yield curve of Treasury Inflation-Protected Securities (TIPS), 5, 7, 10, 20 and 30 years, from
  1. When a FRED API key is set (see the fred_api_key parameter of the Economics class), the same figures come from FRED.
  • United Kingdom: the Bank of England’s real spot curve of index-linked gilts, 3 to 40 years, from 1985. Index-linked gilts pay the Retail Prices Index (RPI).
  • Germany: the real yields of the inflation-linked German federal securities the Bundesbank publishes, interpolated to constant maturities between 3 and 30 years from 2014. Germany has four to six of these bonds outstanding at a time, so only the maturities between its shortest (at least two years) and longest bond are filled. The bonds are indexed to euro area inflation (HICP excluding tobacco).

Yields are returned as a decimal fraction per annum (0.0174 for 1.74%), with one column per country and maturity. Weekly and monthly periods take the curve on the last trading day of each period.

See definition: https://fred.stlouisfed.org/series/DFII10

Also known as: TIPS yield curve, real Treasury yield curve, index-linked gilt curve, Bund linker real yields, inflation-linked bond yields.

Real Yield Curve (TIPS) in Python or via the MCP

Install the Finance Toolkit with:

pip install financetoolkit -U

Then call get_real_yield_curve as shown below.

from financetoolkit import Economics

economics = Economics(start_date='2026-04-01', end_date='2026-09-30')

real_yield_curve = economics.get_real_yield_curve(period='monthly')

real_yield_curve.xs('10Y', axis=1, level='Maturity')

Or, after setting up the Finance Toolkit MCP, ask:

Which returns:

Parameters

get_real_yield_curve accepts the following parameters.

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