Summary
Rates and transfer costs, answered without a key.
The rate is the easy part; what it adds is the comparison — Wise against a bank against crypto for the same transfer — so the answer is what it costs, not just what it converts to.
What it is
A Node server over public financial data: ECB and Wise for currency rates, CoinGecko for crypto prices, DeFi Llama for yields, Open Exchange Rates for the long tail of currencies. It runs from npx and needs no credentials of any kind.
What you get
- get_fx_rate returns a real-time rate for a pair from ECB, with Wise's rate alongside for comparison
- convert_currency does a quick conversion across 166 fiat currencies
- estimate_total_cost compares the total cost of sending money by Wise, bank transfer or crypto
- get_rate_history returns historical rates for a pair, up to 90 days
- get_crypto_quote returns a swap estimate for a token pair, priced off CoinGecko spot
- get_stablecoin_yields returns top DeFi yields for USDC, USDT, DAI and EURC
- get_market_overview returns one snapshot: ECB interest rate, crypto fear and greed, ETH gas and top FX rates
- list_supported_pairs says which fiat currencies and tokens it covers
Requirements
`npx fx-mcp`, or `claude mcp add fx-mcp -- npx fx-mcp`. No account and no key: every source it reads — ECB, Wise's comparison API, CoinGecko, DeFi Llama, Open Exchange Rates and the Fear & Greed index — is public and free.
Setup effort
One command — npx -y fx-mcp