Currensor

{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 12,
      "minItems": 1,
      "description": "Target currency codes, e.g. [\"EUR\", \"INR\"]."
    },
    "from": {
      "type": "string",
      "description": "Source currency code, e.g. \"USD\"."
    },
    "amount": {
      "type": "number",
      "minimum": 0,
      "description": "Amount in the source currency. Defaults to 1."
    }
  }
}