// MCP TOOL REFERENCE

CNB TOOLS

3 tools from the Cnb MCP Server, categorised by risk level.

READ TOOLS

get_rate Quick single-currency lookup. Returns just the CZK rate for one currency (or all rates if no code given). 2/5 get_rates Get official CZK exchange rates published by ČNB. Returns all currencies from the daily sheet (~31 majors). Optional `date` parameter (YYYY-MM-DD) ...

WRITE TOOLS

convert Convert an amount between two currencies using official ČNB rates. E.g., convert 100 EUR to CZK, or 50 USD to GBP (goes via CZK cross-rate). Option... 2/5

// FAQ

How many tools does the Cnb MCP server have? +

The Cnb MCP server exposes 3 tools across 2 categories: Read, Write.

How do I enforce policies on Cnb tools? +

Use Intercept, the open-source MCP proxy. Write YAML rules for each tool — rate limits, argument validation, or deny rules — then run Intercept in front of the Cnb server.

What risk categories do Cnb tools fall into? +

Cnb tools are categorised as Read (2), Write (1). Each category has a recommended default policy.

Enforce policies on Cnb

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept

github.com/policylayer/intercept →