# ČNB Exchange Rates Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## ČNB Exchange Rates

Official Czech National Bank exchange rates for CZK and 30+ currencies, daily and historical.

- Record: https://musedirectory.ai/connector/c-nb-exchange-rates
- Category: Finance & Bills
- Developer: Martin Havel (https://cz-agents.dev)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 1383ms, checked 2026-09-28T08:01:20Z
- Endpoint: https://cnb.cz-agents.dev/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T22:31:11Z)
- Source: Found in the official MCP Registry (dev.cz-agents/cnb) https://registry.modelcontextprotocol.io/v0/servers?search=dev.cz-agents%2Fcnb

Connects to the Czech National Bank (ČNB) for official daily and historical exchange rates. Muse can look up current or past CZK rates against EUR, USD and other major currencies, and convert amounts between any two currencies for accounting and business use.

Example request: "What was the EUR to CZK exchange rate on January 15th for my invoice?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use ČNB Exchange Rates to help me. It is a free service with an MCP server at https://cnb.cz-agents.dev/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- 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) for historical rates; otherwise returns latest.
- 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). Optional `date` for historical conversion.
- get_rate: Quick single-currency lookup. Returns just the CZK rate for one currency (or all rates if no code given).

Screening checks:
- MCP handshake: pass (Answered in 549ms)
- Domain against threat feeds (Cloudflare security DNS): pass (cnb.cz-agents.dev, cz-agents.dev not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (3 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)