curl --request GET \
  --url https://api.amberdata.com/markets/spot/twap/pairs/{pair}/historical \
  --header 'x-api-key: <api-key>'

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": [
    {
      "timestamp": "2020-09-11T20:41:00.000Z",
      "pair": "btc_usd",
      "price": 10311.5,
      "volume": 0.1212,
      "twap": 10315.9
    }
  ]
}