io.github.CloudCorpRecords/fxrates

Official registry Other

Frankfurter FX rates: currencies, latest and historical rates, and conversions, keyless.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @reneturcios/fxrates
Claude Code
claude mcp add fxrates -- npx -y @reneturcios/fxrates@0.1.0 mcp
JSON configuration (Claude Desktop, Cursor, VS Code)
{
    "mcpServers": {
        "fxrates": {
            "command": "npx",
            "args": [
                "-y",
                "@reneturcios/fxrates@0.1.0",
                "mcp"
            ]
        }
    }
}
OCI package ghcr.io/cloudcorprecords/fxrates:0.1.0
Claude Code
claude mcp add fxrates -- docker run -i --rm ghcr.io/cloudcorprecords/fxrates:0.1.0 mcp
JSON configuration (Claude Desktop, Cursor, VS Code)
{
    "mcpServers": {
        "fxrates": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "ghcr.io/cloudcorprecords/fxrates:0.1.0",
                "mcp"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. fxrates
  2. Install
  3. CLI
  4. MCP server
  5. Development
  6. License

fxrates

fxrates reads foreign-exchange data from the Frankfurter API: which currencies are supported, what the latest rates are, what the rates were on a single past date or across a range, and conversions between currencies worked out locally from the fetched rate. One binary serves a command-line interface and a stdio MCP server.

No API key is needed. The service is keyless, so fxrates works with nothing configured. The API base URL can be overridden with FRANKFURTER_API_URL; when it is not set, calls go to https://api.frankfurter.dev/v1.

Install

npx @reneturcios/fxrates currencies

Or run the container image:

docker run -i ghcr.io/cloudcorprecords/fxrates

The container defaults to the MCP server (see below). Pass CLI arguments to use it as a CLI instead.

CLI

fxrates currencies
fxrates latest --base USD --symbols EUR,GBP
fxrates convert 25 EUR USD
fxrates historical 2024-05-01 --base EUR --symbols USD
fxrates range 2024-05-01 2024-05-03 --base EUR
fxrates convert-on 2020-01-02 100 USD EUR
fxrates greet Ada

fxrates --version

Rate commands print the upstream JSON payload. Conversions print a JSON object with amount, from, to, rate, converted, and date when the API supplies one. Exit codes: 0 on success, 1 when a call fails (including an upstream API error), 2 for usage errors.

Conversions are computed locally: the tool fetches the single rate it needs and multiplies. The result is trimmed to at most six decimal places by rounding at the sixth place; no fee, spread, or extra rounding is applied.

MCP server

One bin serves both faces. The mcp subcommand starts a stdio MCP server:

npx -y @reneturcios/fxrates mcp

MCP client configuration:

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

To point the server at a different Frankfurter-compatible host, add FRANKFURTER_API_URL to the client's env for this server.

Tools
ToolInputWhat it returns
get_supported_currencies(none)The map of supported currency codes to names.
get_latest_exchange_ratesbase, symbols (both optional)The latest rates payload.
convert_currency_latestamount, from, to (all required)A conversion at the latest rate: amount, pair, rate, converted value, and date.
get_historical_exchange_ratesdate or start_date/end_date, plus optional base, symbolsRates for one date or a range.
convert_currency_specific_datedate, amount, from, to (all required)A conversion at that date's rate.
greetname (optional)A greeting string. Present for internal testing.

Dates use YYYY-MM-DD. symbols is a comma-separated list such as USD,GBP. Currency arguments are codes such as EUR and USD.

Development

npm install
npm run build   # tsc -> dist/
npm test        # node test runner over test/*.test.ts, no network (fake fetch fixtures)
npm run dev     # run the CLI from source via tsx

License

MIT — see LICENSE.

Frequently asked questions

What is io.github.CloudCorpRecords/fxrates?

Frankfurter FX rates: currencies, latest and historical rates, and conversions, keyless.

How do I install io.github.CloudCorpRecords/fxrates?

It runs on your machine. In Claude Code: claude mcp add fxrates -- npx -y @reneturcios/fxrates@0.1.0 mcp. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.CloudCorpRecords/fxrates need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.CloudCorpRecords/fxrates open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.CloudCorpRecords/fxrates?

It is published by CloudCorpRecords. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.