curl --request GET \
  --url https://drb.coinbase.com/api/v2/private/get_account_summaries \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 2515,
  "jsonrpc": "2.0",
  "method": "private/get_account_summaries",
  "params": {
    "extended": true
  }
}
'

{
  "id": 2515,
  "jsonrpc": "2.0",
  "result": {
    "block_rfq_self_match_prevention": true,
    "creation_timestamp": 1687352432143,
    "email": "user@example.com",
    "id": 10,
    "interuser_transfers_enabled": false,
    "login_enabled": false,
    "mmp_enabled": false,
    "referrer_id": null,
    "security_keys_enabled": false,
    "self_trading_extended_to_subaccounts": false,
    "self_trading_reject_mode": "cancel_maker",
    "summaries": [
      {
        "available_funds": 301.38059622,
        "available_withdrawal_funds": 301.35396172,
        "balance": 302.60065765,
        "cross_collateral_enabled": false,
        "currency": "BTC",
        "delta_total": 31.602958,
        "delta_total_map": {
          "btc_usd": 31.594357699
        },
        "equity": 302.61869214,
        "estimated_liquidation_ratio": 0.10098722,
        "estimated_liquidation_ratio_map": {
          "btc_usd": 0.1009872222854525
        },
        "fee_balance": 0,
        "fees": {
          "btc_usd": {
            "future": {
              "block_trade": 0.3,
              "default": {
                "maker": -0.0001,
                "taker": 0.00035000000000000005,
                "type": "fixed"
              }
            },
            "option": {
              "block_trade": 0.625,
              "default": {
                "maker": 0.625,
                "taker": 0.625,
                "type": "relative"
              }
            },
            "perpetual": {
              "block_trade": 0.3,
              "default": {
                "maker": -0.0001,
                "taker": 0.00035000000000000005,
                "type": "fixed"
              }
            }
          }
        },
        "futures_pl": -0.32434225,
        "futures_session_rpl": -0.03258105,
        "futures_session_upl": 0.05921555,
        "initial_margin": 1.24669592,
        "limits": {
          "limits_per_currency": false,
          "matching_engine": {
            "cancel_all": {
              "burst": 250,
              "rate": 200
            },
            "guaranteed_quotes": {
              "burst": 2,
              "rate": 2
            },
            "max_quotes": {
              "burst": 10,
              "rate": 10
            },
            "quotes": {
              "burst": 500,
              "rate": 500
            },
            "spot": {
              "burst": 250,
              "rate": 200
            },
            "trading": {
              "total": {
                "burst": 250,
                "rate": 200
              }
            }
          },
          "non_matching_engine": {
            "burst": 1500,
            "rate": 1000
          }
        },
        "maintenance_margin": 0.8857841,
        "margin_balance": 302.62729214,
        "margin_model": "segregated_sm",
        "options_delta": -1.01962,
        "options_gamma": 0.00001,
        "options_gamma_map": {
          "btc_usd": 0.00001
        },
        "options_pl": -0.0065,
        "options_session_rpl": 0,
        "options_session_upl": -0.0065,
        "options_theta": 15.97071,
        "options_value": -0.0086,
        "options_vega": 0.0858,
        "options_vega_map": {
          "btc_usd": 0.0858
        },
        "portfolio_margining_enabled": false,
        "projected_delta_total": 32.613978,
        "projected_initial_margin": 1.01529592,
        "projected_maintenance_margin": 0.7543841,
        "session_rpl": -0.03258105,
        "session_upl": 0.05271555,
        "spot_reserve": 0,
        "total_pl": -0.33084225
      },
      {
        "additional_reserve": 0,
        "available_funds": 99.999598,
        "available_withdrawal_funds": 99.999597,
        "balance": 100,
        "cross_collateral_enabled": false,
        "currency": "ETH",
        "delta_total": 0,
        "delta_total_map": {
          "eth_usd": 0
        },
        "equity": 100,
        "estimated_liquidation_ratio": 0,
        "estimated_liquidation_ratio_map": {
          "eth_usd": 0
        },
        "fee_balance": 0,
        "fees": {
          "eth_usd": {
            "future": {
              "block_trade": 0.2,
              "default": {
                "maker": -0.00005,
                "taker": 0.00025,
                "type": "fixed"
              }
            },
            "option": {
              "block_trade": 0.5,
              "default": {
                "maker": 0.5,
                "taker": 0.5,
                "type": "relative"
              }
            },
            "perpetual": {
              "block_trade": 0.2,
              "default": {
                "maker": -0.00005,
                "taker": 0.00025,
                "type": "fixed"
              }
            }
          }
        },
        "futures_pl": 0,
        "futures_session_rpl": 0,
        "futures_session_upl": 0,
        "initial_margin": 0.000402,
        "limits": {
          "limits_per_currency": false,
          "matching_engine": {
            "cancel_all": {
              "burst": 250,
              "rate": 200
            },
            "guaranteed_quotes": {
              "burst": 2,
              "rate": 2
            },
            "max_quotes": {
              "burst": 10,
              "rate": 10
            },
            "quotes": {
              "burst": 500,
              "rate": 500
            },
            "spot": {
              "burst": 250,
              "rate": 200
            },
            "trading": {
              "total": {
                "burst": 250,
                "rate": 200
              }
            }
          },
          "non_matching_engine": {
            "burst": 1500,
            "rate": 1000
          }
        },
        "maintenance_margin": 0,
        "margin_balance": 100,
        "margin_model": "segregated_sm",
        "options_delta": 0,
        "options_gamma": 0,
        "options_gamma_map": {},
        "options_pl": 0,
        "options_session_rpl": 0,
        "options_session_upl": 0,
        "options_theta": 0,
        "options_theta_map": {},
        "options_value": 0,
        "options_vega": 0,
        "options_vega_map": {},
        "portfolio_margining_enabled": false,
        "projected_delta_total": 0,
        "projected_initial_margin": 0.0002,
        "projected_maintenance_margin": 0,
        "session_rpl": 0,
        "session_upl": 0,
        "spot_reserve": 0.0002,
        "total_pl": 0
      }
    ],
    "system_name": "user",
    "type": "main",
    "username": "user"
  }
}