curl --request GET \
  --url https://api.walletsuite.io/api/staking/apr \
  --header 'x-api-key: <api-key>'

{
  "ok": true,
  "code": "<string>",
  "message": "<string>",
  "data": {
    "chain": "<string>",
    "apr": 123,
    "apy": 123,
    "updatedAt": "2023-11-07T05:31:56Z",
    "source": "<string>"
  }
}