curl --request GET \
  --url https://api.amberdata.com/markets/derivatives/analytics/volatility/term-structures/richness \
  --header 'x-api-key: <api-key>'

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": {
    "data": [
      {
        "timestamp": "2019-05-22T00:00:00.000Z",
        "exchange": "deribit",
        "currency": "BTC",
        "atm7days": 91.25547790527344,
        "atm30days": 92.43169403076172,
        "atm60days": 91.62701416015625,
        "atm90days": 89.92632293701172,
        "atm180days": 85.50126647949219,
        "ratio": 10.325310347771273,
        "counter": 10,
        "richness": 1.0325310347771273
      }
    ],
    "metadata": {
      "api-version": "2023-09-30"
    }
  }
}