#yield-curve

Live official euro-area monetary data from the ECB Data Portal — no key, nothing cached. This is the money side of the euro, not exchange rates. The key-rates endpoint returns the ECB's three policy interest rates — the deposit facility rate, the main refinancing operations (MRO) rate and the marginal lending facility rate — the rates that set the price of money across the euro area, each with the date it took effect and recent history (deposit facility around 2.00%, MRO 2.15%). The estr endpoint returns €STR, the euro short-term rate, the overnight benchmark that replaced EONIA, with its recent path. The yield-curve endpoint returns the euro-area AAA-rated government bond spot-rate curve across maturities from 3 months to 30 years, with the 10-year-minus-1-year slope. Everything is the ECB's own published series. This is the euro-rates layer for any fixed-income, macro, forex or research app that needs authoritative European central-bank numbers. Live from the ECB, nothing stored. Distinct from exchange-rate APIs and from the Bank of Canada and US-Treasury APIs — this is the ECB's policy rates, €STR and euro yield curve. 4 endpoints.

api.oanor.com/ecb-api

Live US Treasury yield curve as an API — US government bond yields across the curve, served from Yahoo Finance. It returns the current yield (in percent) for the 3-month, 2-year, 5-year, 10-year and 30-year Treasuries with their daily change in basis points, the shape of the curve (steep, normal, flat or inverted), and the key spreads traders and economists watch — the 10y-2y and 10y-3m spreads, whose inversion has preceded every modern US recession — plus an inverted flag. Get the whole curve, a single maturity's yield, or the spread between any two maturities. The interest-rate and recession-signal layer for trading, macro-research and dashboard apps. Live, no key, no cache. Distinct from US Treasury fiscal-data APIs (which track national debt and issuance) — this is the live market yield curve.

api.oanor.com/yieldcurve-api