curl --request POST \
  --url https://finceptbackend.share.zrok.io/quantlib/risk/var/historical \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "returns": [
    -0.025,
    0.018,
    -0.012,
    0.031,
    -0.008,
    0.022,
    -0.015,
    0.009,
    -0.005,
    0.014
  ],
  "confidence": 0.95,
  "portfolio_value": 5000000
}
'

{
  "success": true,
  "data": {
    "var": 87500,
    "confidence": 0.95
  }
}