curl --request GET \
  --url https://mainnet.gomaestro-api.org/v1/protocol-parameters \
  --header 'api-key: <api-key>'

{
  "data": {
    "min_fee_coefficient": 44,
    "min_fee_constant": {
      "ada": {
        "lovelace": 155381
      }
    },
    "min_fee_reference_scripts": {
      "base": 15,
      "range": 25600,
      "multiplier": 1.2
    },
    "max_block_body_size": {
      "bytes": 90112
    },
    "max_block_header_size": {
      "bytes": 1100
    },
    "max_transaction_size": {
      "bytes": 16384
    },
    "max_reference_scripts_size": {
      "bytes": 204800
    },
    "stake_credential_deposit": {
      "ada": {
        "lovelace": 2000000
      }
    },
    "stake_pool_deposit": {
      "ada": {
        "lovelace": 500000000
      }
    },
    "stake_pool_retirement_epoch_bound": 18,
    "desired_number_of_stake_pools": 500,
    "stake_pool_pledge_influence": "3/10",
    "monetary_expansion": "3/1000",
    "treasury_expansion": "1/5",
    "min_stake_pool_cost": {
      "ada": {
        "lovelace": 170000000
      }
    },
    "min_utxo_deposit_constant": {
      "ada": {
        "lovelace": 0
      }
    },
    "min_utxo_deposit_coefficient": 4310,
    "plutus_cost_models": {
      "plutus_v1": [
        100788,
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        1,
        1,
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        8356,
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        16000,
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        16000,
        100,
        16000,
        100,
        16000,
        100,
        16000,
        100,
        16000,
        100,
        100,
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        100,
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        1,
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        1,
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        53384111,
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      ],
      "plutus_v2": [
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        420,
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        173,
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      "plutus_v3": [
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        1,
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        18,
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        18,
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        18,
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        36,
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        12,
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        1,
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        4307,
        36,
        284546,
        36,
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        26549,
        36,
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        36,
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        1,
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        72,
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        72,
        2261318,
        64571,
        4,
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        8310,
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        0,
        1,
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        0,
        1
      ]
    },
    "script_execution_prices": {
      "memory": "577/10000",
      "cpu": "721/10000000"
    },
    "max_execution_units_per_transaction": {
      "memory": 14000000,
      "cpu": 10000000000
    },
    "max_execution_units_per_block": {
      "memory": 62000000,
      "cpu": 20000000000
    },
    "max_value_size": {
      "bytes": 5000
    },
    "collateral_percentage": 150,
    "max_collateral_inputs": 3,
    "version": {
      "major": 9,
      "minor": 0
    },
    "stake_pool_voting_thresholds": {
      "no_confidence": "51/100",
      "constitutional_committee": {
        "default": "51/100",
        "state_of_no_confidence": "51/100"
      },
      "hard_fork_initiation": "51/100",
      "protocol_parameters_update": {
        "security": "51/100"
      }
    },
    "delegate_representative_voting_thresholds": {
      "no_confidence": "67/100",
      "constitutional_committee": {
        "default": "67/100",
        "state_of_no_confidence": "3/5"
      },
      "constitution": "3/4",
      "hard_fork_initiation": "3/5",
      "protocol_parameters_update": {
        "network": "67/100",
        "economic": "67/100",
        "technical": "67/100",
        "governance": "3/4"
      },
      "treasury_withdrawals": "67/100"
    },
    "constitutional_committee_min_size": 7,
    "constitutional_committee_max_term_length": 146,
    "governance_action_lifetime": 6,
    "governance_action_deposit": {
      "ada": {
        "lovelace": 100000000000
      }
    },
    "delegate_representative_deposit": {
      "ada": {
        "lovelace": 500000000
      }
    },
    "delegate_representative_max_idle_time": 20
  },
  "last_updated": {
    "timestamp": "2024-08-29 16:03:26",
    "block_hash": "ebe27467ad34f4ecb80a3a537aae2e084e34d751426d484f87a5a6a9db4c216f",
    "block_slot": 69264206
  }
}