curl --request GET \
  --url https://api.cryptorank.io/v3/global/fear-greed \
  --header 'X-Api-Key: <api-key>'

{
  "data": {
    "currentValue": 64,
    "classification": "Greed"
  },
  "status": {
    "usedCredits": 1,
    "timestamp": 1780000000000
  }
}