Summary
Connects to the National Bank of Poland's public API to pull exchange rates, gold prices, and other central bank data. No API key required. Part of the Pipeworx gateway system, which lets you query it either through direct tool calls or by asking questions in plain English via ask_pipeworx. Useful when you need Polish zloty exchange rates, historical currency data, or official NBP financial reference rates in your Claude workflows. The streamable HTTP transport means you can add it to any MCP-compatible client with a single URL. If you're building anything that touches Polish financial data or multi-currency applications involving PLN, this gives you direct access to the authoritative source.
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Narodowy Bank Polski (National Bank of Poland) Web API MCP. Keyless.
Part of Pipeworx — an MCP gateway connecting AI agents to 1683+ live data sources.
Tools
| Tool | Description |
|---|---|
exchange_rate_table | Full NBP exchange-rate table of PLN rates for many currencies at once. Pick a table: A = major currencies (mid-rate), B = other/minor currencies (mid-rate), C = bid/ask trading rates for the major set. Rates are PLN per 1 unit of each currency (per 100 for some minor units). Defaults to the latest published table; optionally pass a single date (YYYY-MM-DD) or last_n for the N most recent tables. Weekends/Polish holidays have no data (404). |
currency_rate | PLN exchange rate for one currency over time. Specify the table (A/B for mid-rate, C for bid/ask) and a 3-letter ISO 4217 code (e.g. USD, EUR, GBP, CHF, JPY). Defaults to the latest rate; optionally pass a single date, last_n recent points, or a start_date/end_date window (max ~93 days, working days only). Use this for one currency; use exchange_rate_table for the whole list. |
gold_price | NBP accounting price of gold (cena złota): PLN per 1 gram of pure gold (1000 fineness). Defaults to the latest published price; optionally pass a single date, last_n recent points, or a start_date/end_date window (max ~93 days, working days only). Weekends/Polish holidays have no data (404). |
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"nbp-pl": {
"url": "https://gateway.pipeworx.io/nbp-pl/mcp"
}
}
}
What this endpoint actually serves
tools/list at https://gateway.pipeworx.io/nbp-pl/mcp returns the tools in the table
above plus the shared Pipeworx meta-tools — ask_pipeworx,
discover_tools, search_within, remember/recall and the rest of the
gateway-wide set. So the tool count you see is larger than this table: a
single-pack endpoint currently lists roughly 30 shared tools alongside the
pack's own. The connection's initialize response states its exact scope, and
is the authoritative answer for a given day.
This is deliberate, not multiplexing by accident. The meta-tools are what let a
scoped connection answer a question this pack does not cover — via
ask_pipeworx, which routes across the whole catalog — without you adding a
second MCP server. There is currently no way to mount a pack endpoint without
them; if the extra schemas cost you more context than the routing is worth,
connect to the full gateway once rather than to several pack endpoints.
Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Both URLs reach the same gateway and the same 1683+ data sources. The
only difference is which pack's tools are listed directly; ask_pipeworx
reaches all of them from either one.
No MCP client? Call it over HTTP
curl -X POST https://gateway.pipeworx.io/v1/tools/exchange_rate_table \
-H 'Content-Type: application/json' \
-d '{"table":"A"}'
No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/exchange_rate_table. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.
Standalone (no gateway account)
This package also runs as a local stdio MCP server — no Pipeworx account, no gateway round-trip:
{
"mcpServers": {
"nbp-pl": {
"command": "npx",
"args": ["-y", "@pipeworx/mcp-nbp-pl"]
}
}
}
Or run it directly to confirm it starts:
npx -y @pipeworx/mcp-nbp-pl
It speaks MCP over stdin/stdout and answers initialize/tools/list/tools/call
for only this pack's tools — none of the shared meta-tools the gateway
connection above adds. Same source, same tools, no ask_pipeworx routing.
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:
ask_pipeworx({ question: "your question about Nbp Pl data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →