ai.wondelPublished by wondel.aiOfficial publisherv1.0.0Updated Nov 3, 2026
Official Polish central bank (NBP) exchange rates, currency conversion and gold prices.
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NBP's hosted MCP server (mcp.wondel.ai), published by wondel.ai; no sign-in required; Streamable HTTP; 5 tools.
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{
"mcpServers": {
"nbp": {
"type": "http",
"url": "https://mcp.wondel.ai/nbp/mcp"
}
}
}NBP exchange-rate table
Get a full NBP (Polish central bank) exchange-rate table against PLN — the latest published table by default, or the table in force on a historical date. NBP publishes only on Polish business days — on weekends/holidays the request falls back to the most recent preceding publication; effectiveDate in the response shows the date actually used. Rates data starts 2002-01-02.
datetableno_cacheNBP currency rate vs PLN
Get the official NBP rate for one currency against PLN (Polish złoty) — the latest rate by default, or the rate in force on a historical date. Tables 'a'/'b' return the mid rate; table 'c' returns bid/ask. NBP publishes only on Polish business days — on weekends/holidays the request falls back to the most recent preceding publication; effectiveDate in the response shows the date actually used. Use nbp_rate_series for a multi-day history.
coderequireddatetableno_cacheNBP currency rate history
Get a historical time series of NBP rates for one currency against PLN: either the last N published quotes (last_n, default 30, max 255) or an explicit start_date/end_date window (max 93 days per query — NBP's hard limit; chain calls for longer spans). Quotes exist only for publication days: business days for tables 'a'/'c', Wednesdays for 'b'. Data starts 2002-01-02.
coderequiredtablelast_nend_dateno_cachestart_dateConvert currencies via NBP rates
Convert an amount between two currencies using official NBP mid rates, cross-rated through PLN. Supports PLN and every currency NBP quotes: table A is used first and table B (exotic currencies, published Wednesdays) is consulted automatically for codes A doesn't carry — each side of the response shows the rate, table and effectiveDate used. Latest rates by default, or historical with date. NBP publishes only on Polish business days — on weekends/holidays the request falls back to the most recent preceding publication; effectiveDate in the response shows the date actually used.
torequireddatefromrequiredamountrequiredno_cacheNBP gold price
Get the official NBP gold price — PLN per 1 gram of 1000-fineness gold. Latest price by default; or one historical date; or the last N quotes (last_n, max 255); or a start_date/end_date range (max 93 days per query). Published every business day. NBP publishes only on Polish business days — on weekends/holidays the request falls back to the most recent preceding publication; effectiveDate in the response shows the date actually used. Gold data starts 2013-01-02.
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