Metodologia
Transparent methodology
011. Calculation
Real yield calculation
Step 1
Subtract fees
Step 2
Apply tax
Step 3
Subtract inflation
022. Data Sources
ECB
- €STR rate
- Bond yields
Eurostat
- HICP data
- Country inflation
Banks
- Published rates
- Term deposits
Funds & ETFs
- TER from documents
- Current yields
3. Tax Rates
Standard rates simplified
- Income brackets
- Product type
- Residency
- Deductions
- Holding period
Open Data API
The market data behind this site is available as a free, unauthenticated JSON endpoint. No API key required; CORS is open, so it can be consumed directly from browsers.
GET https://euroyields.com/api/market-data
The response includes the ECB deposit facility and main refinancing rates, Euribor 3M, the euro-area AAA yield curve (1Y/2Y/3Y/10Y), 10-year government bond yields and HICP inflation for 16 countries, plus source attributions and a timestamp. Values refresh from official ECB and Eurostat sources; responses are cached for up to 15 minutes.
A machine-readable feed of headline rate changes (ECB decisions, Euribor and €STR moves) is available at /feed.xml.
If you build on this data, an attribution link to euroyields.com is appreciated. Underlying sources: ECB Data Portal and Eurostat (both free and official).
5. Limitations
Errors Possible
Mistakes can occur
Not Financial Advice
Educational tool only
No Liability
No responsibility