curl --request GET \
  --url https://api.onswitch.xyz/rates \
  --header 'x-service-key: <api-key>'

{
  "success": true,
  "message": "Rates fetched successfully",
  "timestamp": "2026-04-18T14:22:08.631Z",
  "data": [
    {
      "currency": "NGN",
      "rate": 1582.441
    },
    {
      "currency": "GHS",
      "rate": 16.08
    },
    {
      "currency": "KES",
      "rate": 142.35
    }
  ]
}