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Realtime Exchange Rate Mcp

@cahthuranag

Live currency exchange rates, historical FX data, and multi-currency lookups for Claude Code, Cursor, Claude Desktop, and Windsurf. Real-time mid-market rates across 160+ currencies — sourced from Reuters/Refinitiv interbank feeds.
Overview

Realtime Exchange Rate MCP

Give your AI coding assistant a live window into the foreign-exchange market.

A Model Context Protocol server that lets Claude Code, Cursor, Claude Desktop, Windsurf, and any other MCP-compatible client fetch real-time currency rates, historical data, and multi-currency lookups.

What it does

After installation, your assistant can answer questions like:

  • "What's the current USD to EUR rate?"
  • "Show me how GBP/JPY moved over the last 30 days."
  • "Convert 250 USD into CAD at a real rate."
  • "Compare USD against EUR, GBP, and JPY simultaneously."
  • "List every supported currency."

Tools exposed

  • get_exchange_rate — current mid-market rate between two currencies
  • get_historical_rates — time-series data over 1d / 7d / 30d / 1y
  • get_rates_authenticated — multi-currency batch lookup
  • list_currencies — full list of 160+ supported ISO 4217 codes

Get an API key

The server requires ALLRATES_API_KEY. A free key is enough for development and personal use — no credit card required.

  1. Register at allratestoday.com/register
  2. Verify your email
  3. Copy your key (format: art_live_xxxxx) from your dashboard

Install (Claude Code)

claude mcp add allratestoday -- npx -y @allratestoday/mcp-server
claude mcp env allratestoday ALLRATES_API_KEY=art_live_xxxxx

Install (Cursor / Claude Desktop / Windsurf)

Edit your client's MCP config:

{
  "mcpServers": {
    "allratestoday": {
      "command": "npx",
      "args": ["-y", "@allratestoday/mcp-server"],
      "env": {
        "ALLRATES_API_KEY": "art_live_xxxxx"
      }
    }
  }
}

Source code

- npm: https://www.npmjs.com/package/@allratestoday/mcp-server
- GitHub: https://github.com/cahthuranag/realtime-exchange-rate-mcp
- License: MIT
- Currencies: 160+ ISO 4217 codes
- Update frequency: ~60 second mid-market rate refresh
- Data source: Reuters / Refinitiv interbank feeds

Server Config

{
  "mcpServers": {
    "allratestoday": {
      "command": "npx",
      "args": [
        "-y",
        "@allratestoday/mcp-server"
      ],
      "env": {
        "ALLRATES_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}
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Realtime Exchange Rate Mcp MCP Server