Finance

Currency Exchange Calculator

Convert an amount between currencies using live exchange rates from a free, no-key API (open.er-api.com). Supports 160+ world currencies. Shows the converted amount, the exchange rate used, a comparison table against popular currencies, and the rate update timestamp.

html· HTML resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/currency-exchange' \
  -H 'Content-Type: application/json' \
  -d '{"amount":1000,"fromCurrency":"USD","toCurrency":"EUR","decimalPlaces":2}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/currency-exchange

Parameters

Name	Type	Required	Description
amount	number	Yes	—
fromCurrency	text	Yes	—
toCurrency	text	Yes	—
decimalPlaces	number	No	—

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-currency-exchange": {
      "name": "currency-exchange",
      "description": "Convert an amount between currencies using live exchange rates from a free, no-key API (open.er-api.com). Supports 160+ world currencies. Shows the converted amount, the exchange rate used, a comparison table against popular currencies, and the rate update timestamp.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=currency-exchange",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "currency-exchange",
    "arguments": {
  "amount": 1000,
  "fromCurrency": "USD",
  "toCurrency": "EUR",
  "decimalPlaces": 2
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

Browse tools Open tool

Name

Type

Required

Description

amount

number

Yes

—

fromCurrency

text

Yes

—

toCurrency

text

Yes

—

decimalPlaces

number

—

{ "mcpServers": { "elysiatools-currency-exchange": { "name": "currency-exchange", "description": "Convert an amount between currencies using live exchange rates from a free, no-key API (open.er-api.com). Supports 160+ world currencies. Shows the converted amount, the exchange rate used, a comparison table against popular currencies, and the rate update timestamp.", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=currency-exchange", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "currency-exchange", "arguments": { "amount": 1000, "fromCurrency": "USD", "toCurrency": "EUR", "decimalPlaces": 2 } } }