curl --request GET \
  --url https://api.mainnet.aptoslabs.com/decibel/api/v1/contracts \
  --header 'Authorization: Bearer <token>'

{
  "contracts": [
    {
      "base_currency": "<string>",
      "base_volume": "<string>",
      "contract_index": 1,
      "end_timestamp": "<string>",
      "funding_rate": "<string>",
      "high": "<string>",
      "index_currency": "<string>",
      "index_price": "<string>",
      "last_price": "<string>",
      "low": "<string>",
      "next_funding_rate": "<string>",
      "next_funding_rate_timestamp": "<string>",
      "open_interest": "<string>",
      "open_interest_usd": "<string>",
      "product_type": "<string>",
      "start_timestamp": "<string>",
      "target_currency": "<string>",
      "target_volume": "<string>",
      "ticker_id": "<string>"
    }
  ]
}