AllRatesToday MCP Server — Currency Rates in Claude Code & Cursor

Give Claude Code, Cursor, and Claude Desktop access to real-time currency exchange rates. Install @allratestoday/mcp-server in one line and let your AI assistant convert and compare currencies.

AllRatesToday now ships a Model Context Protocol (MCP) server — a tiny bridge that gives AI coding tools like Claude Code, Cursor, and Claude Desktop direct access to real-time mid-market exchange rates and historical data.

Once configured, your AI assistant can answer questions like:

• "What's the current USD to EUR rate?"
• "Show me GBP/JPY over the last 30 days."
• "Convert 250 USD to CAD using a real rate."
• "List every supported currency."

Install

Claude Code

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

Cursor

Edit ~/.cursor/mcp.json (or project .cursor/mcp.json):

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

Claude Desktop

Edit your Claude Desktop config file:

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

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

Restart the app after editing.

Tools exposed

Get an API key

1. Register at allratestoday.com/register.
2. Verify your email.
3. Copy your key from the dashboard — it looks like art_live_xxxxx.

The free plan gives 300 requests/month. Two tools (get_exchange_rate and list_currencies) don't need a key. Set ALLRATES_API_KEY for the historical and multi-target endpoints.

Environment variables

FAQ

What is MCP?

Model Context Protocol is Anthropic's open standard for connecting AI assistants to external tools and data. An MCP server exposes a set of typed tools; clients like Claude Code and Cursor call them on your behalf when the model needs them.

Is the MCP server free?

The MCP server itself is MIT-licensed. The underlying API has a free tier (300 req/mo) and paid plans from €4.99/mo. Public tools work without a key.

Does it work offline?

No — the tools call the AllRatesToday API over HTTPS. Cache your results locally if you need offline behaviour.

Can I contribute?

Yes. Source is on GitHub — issues and PRs welcome.

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