Optional indicators use per-currency fetcher capability checks and may be temporarily hidden while source coverage is being remediated.
foreign_reserves
Available
cb_assets
UnavailableNot implemented on this currency fetcher yet.
inflation_mom
Available
About Central Bank Policy Rate (PLN)
The Poland policy interest rate is the benchmark rate set by the Narodowy Bank Polski to influence borrowing costs, credit conditions, and inflation throughout the economy. It is the single most important price in Poland's financial system.
Why FX traders watch it
Policy rate differentials between countries are the primary driver of carry-trade positioning and long-run FX equilibrium. When the Narodowy Bank Polski is hiking while others are on hold, the pln typically appreciates on an interest rate differential basis.
How to interpret the data
A surprise rate hike is pln-positive; a surprise cut is negative. Forward guidance and the policy statement accompanying each decision are often more market-moving than the rate change itself, as markets are usually well-positioned for the expected move.
Historical Central Bank Policy Rate (PLN)
Source: NBP/GUS
· ~10x/year
· %
Chart data not available. Access the full historical series via the API endpoint above.
This page documents the exact request inputs, response fields, access model, and currently published history window for
/api/v1/announcements/pln/policy_rate.
USD is free without a key. All other currencies require a Professional API key.
Public USD endpoint — anonymous callers receive the most recent 365 days. Add `?api_key=YOUR_API_KEY` to extend the window for USD or to access any other currency. Date filters are applied before pagination. The default page size is 20 rows and the maximum is 100. Forecasts are served separately by /v1/predictions/pln; join via `announcement_id`.
Path parameters
Parameter
Required
Type
Description
currency
YES
string
3-letter currency code.
indicator
YES
string
Indicator slug. Use /v1/data_catalogue/{currency} to list available slugs per currency.
Query parameters
Parameter
Required
Format
Description
start_date
NO
string (YYYY-MM-DD)
Earliest observation date to include. Date filters are applied before pagination. Defaults to 365 days ago.
end_date
NO
string (YYYY-MM-DD)
Latest observation date to include. Defaults to today.
limit
NO
integer
Maximum number of rows to return per page. Defaults to 20; maximum 100.
offset
NO
integer
Zero-based row offset after date filtering. Use with pagination.next_offset to request the next page.
api_key
Pro (USD: free for last 365 days)
string
Professional API key. Required for non-USD currencies and for USD requests that need history older than 365 days.
Pagination behavior
Use start_date and end_date to narrow the series first, then page through the filtered result with limit and offset.
The response includes earliest_available_date and latest_available_date for the full series coverage, plus a pagination object with
returned_count, total_count, has_more, and next_offset.
Response fields
Field
Type
Description
currency
string
3-letter currency code.
indicator
string
Indicator slug as requested.
has_official_forecast
boolean
True if the central bank publishes an official forecast for this indicator.
start_date
string
Earliest date in the filtered result set (YYYY-MM-DD).
end_date
string
Latest date in the filtered result set (YYYY-MM-DD).
earliest_available_date
string | null
Earliest date available for this series before any date filter or pagination is applied.
latest_available_date
string | null
Latest date available for this series before pagination is applied.
pagination.limit
integer
Page size used for this response.
pagination.offset
integer
Zero-based offset used for this response.
pagination.returned_count
integer
Number of rows included in data[].
pagination.total_count
integer
Total number of rows matching the path and date filters before pagination.
pagination.has_more
boolean
True when another page is available.
pagination.next_offset
integer | null
Offset to use for the next page, or null when there are no more rows.
cb_target
object | null
Central bank target metadata (e.g. inflation target range), if applicable.
data[].date
string
Observation date (YYYY-MM-DD).
data[].announcement_id
string
Stable announcement identifier in the form `{currency}_{indicator}_{date}` — use it to join predictions from /v1/predictions/{currency} and revision history.
data[].val
number | null
Observed value in the indicator's native unit.
data[].announcement_datetime
integer | null
Unix timestamp (UTC) of the official data release.
data[].pct_change
number | null
Period-over-period percentage change.
data[].pct_change_12m
number | null
12-month rolling percentage change.
Example Usage
To retrieve the first page of Central Bank Policy Rate data for PLN from 2023:
GET https://fxmacrodata.com/api/v1/announcements/pln/policy_rate?start_date=2023-01-01&end_date=2023-12-31&limit=20&offset=0&api_key=YOUR_API_KEY
Frequently Asked Questions
How do I get the Narodowy Bank Polski policy rate history via API?
Policy rate history for Poland is available at /api/v1/announcements/pln/policy_rate, with announcement_datetime for every meeting decision.
What happens to the pln when the Narodowy Bank Polski raises rates?
Rate hikes attract capital inflows seeking higher yield, which typically strengthens the pln in the short run. However, very aggressive hikes can raise recession fears and eventually weaken the currency.