Currency Conversion MCP server for AI agents

This MCP Currency Converter Server provides real-time currency conversion and exchange rate data using the Frankfurter API. It offers a streamlined way to integrate currency conversion capabilities into your applications through the Model Context Protocol.

Getting Started

The MCP server is available at two endpoints:

/mcp endpoint for streamable HTTP
/sse endpoint for legacy HTTP+SSE

Since many clients don't yet support streamable HTTP, you can use a proxy to connect to the server.

Installation with Proxy

To set up the currency converter with a proxy:

{
  "mcpServers": {
    "currency-conversion": {
      "command": "npx",
      "args": ["mcp-remote", "https://currency-mcp.wesbos.com/sse"]
    }
  }
}

Available Tools

The server provides several tools for currency conversion and exchange rate data.

Convert Currency

The convert_currency tool allows you to convert amounts between different currencies.

Parameters:

from (string): Source currency code (3 letters, e.g., "USD", "EUR")
to (string): Target currency code (3 letters, e.g., "USD", "EUR")
amount (number): Amount to convert (positive number)

Example: Converting 100 USD to EUR

{
  "from": "USD",
  "to": "EUR",
  "amount": 100
}

Get Latest Rates

The get_latest_rates tool fetches the most recent exchange rates.

Parameters:

base (string, optional): Base currency code (defaults to EUR)
symbols (string, optional): Comma-separated currency codes to limit results

Example: Getting USD rates for specific currencies

{
  "base": "USD",
  "symbols": "EUR,GBP,JPY"
}

List Available Currencies

The get_currencies tool provides a list of all available currencies with their full names.

Parameters: None required

Get Historical Rates

The get_historical_rates tool retrieves exchange rates for a specific date in the past.

Parameters:

date (string): Date in YYYY-MM-DD format
base (string, optional): Base currency code (defaults to EUR)
symbols (string, optional): Comma-separated currency codes to limit results

Example: Getting historical EUR rates for January 1, 2024

{
  "date": "2024-01-01",
  "base": "EUR",
  "symbols": "USD,GBP"
}

Data Source

All exchange rate data is provided by the Frankfurter API.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "currency-conversion" '{"command":"npx","args":["mcp-remote","https://currency-mcp.wesbos.com/sse"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "currency-conversion": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://currency-mcp.wesbos.com/sse"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "currency-conversion": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://currency-mcp.wesbos.com/sse"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect