@currencytrip/mcp

MCP server for Currency Trip — plan trips by how far your money goes.

Gives an AI assistant live mid-market exchange rates and travel-affordability rankings for ~140 currencies across ~160 countries, with change bands derived from weekly history archived since 1999.

No API key. No account.

Install

{
  "mcpServers": {
    "currencytrip": {
      "command": "npx",
      "args": ["-y", "@currencytrip/mcp"]
    }
  }
}

Tools

| Tool | Ask it | |---|---| | find_cheap_destinations | "Where does my money go furthest right now?" | | compare_destinations | "Japan, Thailand or Portugal?" | | check_destination | "Is Japan affordable at the moment?" | | get_exchange_rate | "What is USD to JPY today?" | | get_rate_history | "Was the pound ever stronger against the yen?" | | where_is_my_currency_strongest | "Where is the pound strongest?" |

Place names are fuzzily matched server-side — "Britain", "the states", "Bali" and "czechia" all resolve, and every result reports how it was matched.

Design

The server is a thin proxy over the public JSON API. It holds no data logic and no credentials, deliberately:

• No logic, because the subtle rules (medians rather than means, so one hyperinflating pair cannot swamp a ranking; the popular-destination filter; nulls-last ordering) live in one place on the server. Duplicating them here would let the tool and the page disagree.
• No credentials, because an npx-distributed package with a database key baked in is a secret you cannot rotate.

Every result carries the source URL and a ready-to-paste citation.

Caveats the tools surface

• Rates are mid-market: no card or bureau fees, so real cost is typically 1–4% worse.
• A missing change figure is genuinely unavailable, never zero.
• Rankings measure exchange rates, not local price levels — where a currency has weakened through domestic inflation, local prices will have risen too.

Development

npm install && npm run build
CURRENCYTRIP_API=http://localhost:8000/api/v1 node dist/index.js

MIT licensed.