curl --request GET \
  --url https://api.coinbase.com/api/v3/brokerage/portfolios/{portfolio_uuid} \
  --header 'Authorization: Bearer <token>'

{
  "breakdown": {
    "portfolio": {
      "name": "<string>",
      "uuid": "<string>",
      "type": "UNDEFINED",
      "deleted": true
    },
    "portfolio_balances": {
      "total_balance": {
        "value": "<string>",
        "currency": "<string>"
      },
      "total_futures_balance": {
        "value": "<string>",
        "currency": "<string>"
      },
      "total_cash_equivalent_balance": {
        "value": "<string>",
        "currency": "<string>"
      },
      "total_crypto_balance": {
        "value": "<string>",
        "currency": "<string>"
      },
      "futures_unrealized_pnl": {
        "value": "<string>",
        "currency": "<string>"
      },
      "perp_unrealized_pnl": {
        "value": "<string>",
        "currency": "<string>"
      }
    },
    "spot_positions": [
      {
        "asset": "<string>",
        "account_uuid": "<string>",
        "total_balance_fiat": 123,
        "total_balance_crypto": 123,
        "available_to_trade_fiat": 123,
        "allocation": 123,
        "cost_basis": {
          "value": "<string>",
          "currency": "<string>"
        },
        "asset_img_url": "<string>",
        "is_cash": true,
        "average_entry_price": {
          "value": "<string>",
          "currency": "<string>"
        },
        "asset_uuid": "<string>",
        "available_to_trade_crypto": 123,
        "unrealized_pnl": 123,
        "available_to_transfer_fiat": 123,
        "available_to_transfer_crypto": 123,
        "asset_color": "<string>",
        "account_type": "ACCOUNT_TYPE_UNKNOWN_UNSPECIFIED",
        "funding_pnl": 123
      }
    ],
    "perp_positions": [
      {
        "product_id": "<string>",
        "product_uuid": "<string>",
        "symbol": "<string>",
        "asset_image_url": "<string>",
        "vwap": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "position_side": "FUTURES_POSITION_SIDE_UNSPECIFIED",
        "net_size": "<string>",
        "buy_order_size": "<string>",
        "sell_order_size": "<string>",
        "im_contribution": "<string>",
        "unrealized_pnl": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "mark_price": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "liquidation_price": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "leverage": "<string>",
        "im_notional": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "mm_notional": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "position_notional": {
          "userNativeCurrency": {
            "value": "<string>",
            "currency": "<string>"
          },
          "rawCurrency": {
            "value": "<string>",
            "currency": "<string>"
          }
        },
        "margin_type": "MARGIN_TYPE_UNSPECIFIED",
        "liquidation_buffer": "<string>",
        "liquidation_percentage": "<string>",
        "asset_color": "<string>"
      }
    ],
    "futures_positions": [
      {
        "product_id": "<string>",
        "contract_size": "<string>",
        "side": "FUTURES_POSITION_SIDE_UNSPECIFIED",
        "amount": "<string>",
        "avg_entry_price": "<string>",
        "current_price": "<string>",
        "unrealized_pnl": "<string>",
        "expiry": "<string>",
        "underlying_asset": "<string>",
        "asset_img_url": "<string>",
        "product_name": "<string>",
        "venue": "<string>",
        "notional_value": "<string>",
        "asset_color": "<string>",
        "last_traded_at": "<string>"
      }
    ]
  }
}