convert_currency
Quick currency conversion using live rates (supports 166 fiat currencies)
Get a live FX rate, work out what a transfer would really cost, and see where a stablecoin is yielding — with no API key anywhere.
LABSCO SUMMARY
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.
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.
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.
One command — npx -y fx-mcp
USE CASES
The ECB rate with Wise's alongside it, or a straight conversion across 166 currencies.
Wise, bank transfer and crypto compared on total cost for the amount you are actually sending.
Up to 90 days of history for the pair, which is enough to tell a move from noise.
Top DeFi yields for USDC, USDT, DAI and EURC in one call.
A swap estimate off CoinGecko spot, against the list of pairs it supports.
ECB rate, fear and greed, ETH gas and top FX rates in a single answer.
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
convert_currencyQuick currency conversion using live rates (supports 166 fiat currencies)
estimate_total_costCompare total cost of sending money via Wise, bank transfer, or crypto
get_crypto_quoteGet a crypto swap quote for token pairs (uses CoinGecko spot prices)
get_fx_rateGet real-time FX rate from ECB and Wise for a currency pair
get_market_overviewGet a financial market snapshot: ECB interest rate, crypto fear/greed, ETH gas, top FX rates
get_rate_historyGet historical FX rates for a currency pair (up to 90 days)
get_stablecoin_yieldsGet top DeFi yields for stablecoins (USDC, USDT, DAI, EURC) from DeFi Llama
list_supported_pairsList all supported fiat currencies and crypto tokens
BEFORE YOU INSTALL
8 tools when we connected.
npx on PATH
CONTEXT COST
Rated by the size of the 8 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Add the block to your client, or run the command directly.
{
"mcpServers": {
"fx-mcp": {
"command": "npx",
"args": [
"-y",
"fx-mcp"
]
}
}
}npx -y fx-mcp