curl --request GET \
  --url https://test.deribit.com/api/v2/private/get_leg_prices \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "private/get_leg_prices",
  "params": {
    "price": 0.6,
    "legs": [
      {
        "instrument_name": "BTC-1NOV24-67000-C",
        "direction": "buy",
        "amount": 2
      },
      {
        "instrument_name": "BTC-1NOV24-66000-C",
        "direction": "sell",
        "amount": 2
      }
    ]
  }
}
'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "legs": [
      {
        "ratio": 1,
        "instrument_name": "BTC-1NOV24-67000-C",
        "price": 0.6001,
        "direction": "buy"
      },
      {
        "ratio": 1,
        "instrument_name": "BTC-1NOV24-66000-C",
        "price": 0.0001,
        "direction": "sell"
      }
    ],
    "amount": 2
  }
}