finwire.pl
Public financial data API
NBP policy rates and WIBOR/POLSTR, CPI inflation, NBP FX rates, NBP BaRN housing prices, GUS wages, government bonds and finwire's own indicators (credit stress map, barometers). One clean format, normalized, with explicit source attribution.
Source: finwire.pl, https://public-api.finwire.pl
The data may be used with source attribution and a backlink to finwire.pl. Public data (NBP, GUS, Ministry of Finance) requires attribution to the original source; finwire indicators are available under CC BY 4.0.
Time series
Interest rates: NBP, WIBOR, POLSTR
Daily and historical values of NBP policy rates and the WIBOR and POLSTR benchmarks (all tenors). POLSTR is the successor to WIBOR in the Polish benchmark reform.
/v1/series/interest-rate/{indicator}
CPI inflation (GUS)
Consumer price inflation (CPI), year-over-year (YoY) and month-over-month (MoM), monthly and annual, based on data from Statistics Poland (GUS).
/v1/series/cpi
NBP currency rates
Mid rates (table A) and bid/ask rates (table C) for major currencies against the Polish zloty, current and historical, based on NBP tables.
/v1/series/fx/{code}
Housing prices (NBP BaRN)
Average price per square meter of flats on the secondary and primary market in provincial capitals, quarterly since 2006, based on the NBP BaRN database.
/v1/series/housing/{city}
Government bonds
Interest rates of retail government bonds (OTS, ROR, DOR, TOS, COI, EDO, ROS, ROD) across successive issues, based on Polish Ministry of Finance data.
/v1/bonds
Wages (GUS) - median and percentiles
Median, mean and percentiles of gross wages in Poland, plus average wages across the 16 provinces, based on GUS wage-distribution data.
/v1/wages
Legal limits (IKE, IKZE)
Current legal limits updated annually: annual contribution limits for the IKE and IKZE retirement accounts and related values, based on official announcements.
/v1/legal-limits
finwire indicators
finwire credit stress map
The installment of a model mortgage for a 50 sqm flat as a percentage of the average net wage in each of the 16 provinces, with DSTI thresholds per the KNF Recommendation S. Computed by finwire.pl.
/v1/index/credit-stress
Real return on deposits
The rate of the best term deposits minus CPI inflation - a barometer of whether savings actually gain or lose value. Computed by finwire.pl.
/v1/index/real-deposit-rate
Housing affordability (financeable area)
The number of square meters of housing that a model household can finance with a mortgage. Computed by finwire.pl.
/v1/index/housing-affordability
Mortgage cost
A barometer of the current mortgage interest rate against the 3-year average. Computed by finwire.pl.
/v1/index/credit-cost
Borrowing power (barometer)
The maximum mortgage available to a model household over time. Computed by finwire.pl.
/v1/index/borrowing-power
Purchasing power (inflation)
A barometer of the zloty purchasing power based on year-over-year CPI inflation. Computed by finwire.pl.
/v1/index/purchasing-power
Market aggregates
Term deposit rate aggregates
Median, percentiles and spread of term deposit rates currently available on the market, for a model amount and term. Aggregates only - no individual bank offers.
/v1/market/deposit-rates
Savings account rate aggregates
Median and percentiles of savings account rates currently available on the market. Aggregates only - no individual bank offers.
/v1/market/savings-rates
Mortgage rate aggregates
Median APRC (RRSO), margin and nominal rate of mortgages for a model loan. Aggregates only - no individual bank offers.
/v1/market/mortgage-rates
Cash loan rate aggregates
Median APRC (RRSO) and nominal rate of cash loans for a model amount and term. Aggregates only - no individual bank offers.
/v1/market/cash-loan-rates
Snapshot
Usage policy
- Responses are JSON with a
metablock containing the source, date and a ready-to-use citation. - Rate limit: 120 requests / minute per IP. Data is cached at the edge - it refreshes once a day.
- Raw bank offers are not exposed - the "Market aggregates" section returns statistics only.
- The data is informational. finwire.pl is not a licensed investment adviser.