Get Protocol Config

POST

https://iota.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Return the protocol config table for the given version number. If the version number is not specified, If none is specified, the node uses the version of the latest epoch it has processed.

Body

application/json

JSON-RPC request for iota_getProtocolConfig.

Structured JSON-RPC request information.

jsonrpcstring2.0required

JSON-RPC protocol version.

idintegerrequired

Client-defined identifier used to match the response to the request.

methodstringiota_getProtocolConfigrequired

IOTA JSON-RPC method name.

paramsArray<any>required

Ordered positional parameters supplied to the method.

Response

200OK

Successful JSON-RPC response returned by the node.

Get Protocol Config

curl -X POST 'https://iota.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "iota_getProtocolConfig",
    "params": [
      null
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://iota.nownodes.io/");
const result = await provider.send("iota_getProtocolConfig", [
  null
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://iota.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "iota_getProtocolConfig",
  "params": [
    null
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://iota.nownodes.io/"))
response = w3.provider.make_request("iota_getProtocolConfig", [
  null
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://iota.nownodes.io/"),
});

const result = await client.request({
  method: "iota_getProtocolConfig",
  params: [
  null
],
});

console.log(result);

const endpoint = "https://iota.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "iota_getProtocolConfig", params: [
  null
], id: 1 });
console.log(result);

const response = await fetch('https://iota.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "id": 1,
      "method": "iota_getProtocolConfig",
      "params": [
        null
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "id": 1,
  "method": "iota_getProtocolConfig",
  "params": [
    null
  ]
}

response = requests.post('https://iota.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://iota.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "iota_getProtocolConfig",
    "params": [
      null
    ]
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "iota_getProtocolConfig",
  "params": [
    null
  ]
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "minSupportedProtocolVersion": "1",
    "maxSupportedProtocolVersion": "34",
    "protocolVersion": "34",
    "featureFlags": {
      "accept_passkey_in_multisig": false,
      "additional_borrow_checks": true,
      "additional_multisig_checks": true,
      "adjust_rewards_by_score": false,
      "always_advance_dkg_to_resolution": true,
      "calculate_validator_scores": false,
      "congestion_control_gas_price_feedback_mechanism": true,
      "congestion_control_min_free_execution_slot": true,
      "congestion_limit_overshoot_in_gas_price_feedback_mechanism": true,
      "consensus_batched_block_sync": true,
      "consensus_block_restrictions": true,
      "consensus_commit_transactions_only_for_traversed_headers": true,
      "consensus_distributed_vote_scoring_strategy": true,
      "consensus_enable_absolute_score_leader_schedule": false,
      "consensus_enable_sliding_window_leader_schedule": false,
      "consensus_fast_commit_sync": true,
      "consensus_linearize_subdag_v2": true,
      "consensus_median_timestamp_with_checkpoint_enforcement": true,
      "consensus_round_prober": true,
      "consensus_round_prober_probe_accepted_rounds": true,
      "consensus_smart_ancestor_selection": false,
      "consensus_starfish_speed": false,
      "consensus_zstd_compression": true,
      "convert_type_argument_error": true,
      "deny_rule_governance": false,
      "deny_rule_governance_on_chain": false,
      "dependency_linkage_error": true,
      "disable_invariant_violation_check_in_swap_loc": true,
      "disallow_new_modules_in_deps_only_packages": true,
      "enable_group_ops_native_function_msm": false,
      "enable_move_authentication": true,
      "enable_move_authentication_for_sponsor": false,
      "enable_pcool_flow": false,
      "enable_poseidon": false,
      "enable_vdf": false,
      "hardened_otw_check": true,
      "metadata_in_module_bytes": true,
      "minimize_child_object_mutations": true,
      "move_native_tx_context": true,
      "native_charging_v2": true,
      "no_extraneous_module_bytes": true,
      "normalize_ptb_arguments": true,
      "package_metadata_with_dynamic_module_metadata": false,
      "pass_calculated_validator_scores_to_advance_epoch": false,
      "pass_validator_scores_to_advance_epoch": true,
      "passkey_auth": true,
      "pcool_skip_immutable_object_locks": true,
      "pre_consensus_sponsor_only_move_authentication": false,
      "protocol_defined_base_fee": true,
      "publish_package_metadata": true,
      "relocate_event_module": true,
      "report_move_authentication_error": true,
      "rethrow_serialization_type_layout_errors": true,
      "select_committee_from_eligible_validators": true,
      "select_committee_supporting_next_epoch_version": true,
      "separate_gas_price_feedback_mechanism_for_randomness": true,
      "track_non_committee_eligible_validators": true,
      "uncompressed_g1_group_elements": false,
      "validate_identifier_inputs": true,
      "validator_metadata_verify_v2": true,
      "variant_nodes": true
    },
    "attributes": {
      "address_from_bytes_cost_base": {
        "u64": "52"
      },
      "address_from_u256_cost_base": {
        "u64": "52"
      },
      "address_to_u256_cost_base": {
        "u64": "52"
      },
      "auth_context_authenticator_function_info_v1_cost_base": {
        "u64": "270"
      },
      "auth_context_digest_cost_base": {
        "u64": "30"
      },
      "auth_context_replace_cost_base": {
        "u64": "30"
      },
      "auth_context_replace_cost_per_byte": {
        "u64": "2"
      },
      "auth_context_tx_commands_cost_base": {
        "u64": "30"
      },
      "auth_context_tx_commands_cost_per_byte": {
        "u64": "2"
      },
      "auth_context_tx_data_bytes_cost_base": {
        "u64": "30"
      },
      "auth_context_tx_data_bytes_cost_per_byte": {
        "u64": "2"
      },
      "auth_context_tx_inputs_cost_base": {
        "u64": "30"
      },
      "auth_context_tx_inputs_cost_per_byte": {
        "u64": "2"
      },
      "base_gas_price": {
        "u64": "1000"
      },
      "base_tx_cost_fixed": {
        "u64": "1000"
      },
      "base_tx_cost_per_byte": {
        "u64": "0"
      },
      "bcs_failure_cost": {
        "u64": "52"
      },
      "bcs_legacy_min_output_size_cost": {
        "u64": "1"
      },
      "bcs_per_byte_serialized_cost": {
        "u64": "2"
      },
      "binary_address_identifiers": {
        "u16": "100"
      },
      "binary_constant_pool": {
        "u16": "4000"
      },
      "binary_enum_def_instantiations": null,
      "binary_enum_defs": null,
      "binary_field_handles": {
        "u16": "500"
      },
      "binary_field_instantiations": {
        "u16": "250"
      },
      "binary_friend_decls": {
        "u16": "100"
      },
      "binary_function_defs": {
        "u16": "1000"
      },
      "binary_function_handles": {
        "u16": "1500"
      },
      "binary_function_instantiations": {
        "u16": "750"
      },
      "binary_identifiers": {
        "u16": "10000"
      },
      "binary_module_handles": {
        "u16": "100"
      },
      "binary_signatures": {
        "u16": "1000"
      },
      "binary_struct_def_instantiations": {
        "u16": "100"
      },
      "binary_struct_defs": {
        "u16": "200"
      },
      "binary_struct_handles": {
        "u16": "300"
      },
      "binary_variant_handles": null,
      "binary_variant_instantiation_handles": null,
      "bls12381_bls12381_min_pk_verify_cost_base": {
        "u64": "49282"
      },
      "bls12381_bls12381_min_pk_verify_msg_cost_per_block": {
        "u64": "2"
      },
      "bls12381_bls12381_min_pk_verify_msg_cost_per_byte": {
        "u64": "2"
      },
      "bls12381_bls12381_min_sig_verify_cost_base": {
        "u64": "44064"
      },
      "bls12381_bls12381_min_sig_verify_msg_cost_per_block": {
        "u64": "2"
      },
      "bls12381_bls12381_min_sig_verify_msg_cost_per_byte": {
        "u64": "2"
      },
      "bridge_should_try_to_finalize_committee": null,
      "buffer_stake_for_protocol_upgrade_bps": {
        "u64": "5000"
      },
      "check_zklogin_id_cost_base": null,
      "check_zklogin_issuer_cost_base": null,
      "checkpoint_rate_window_size": {
        "u64": "20"
      },
      "checkpoint_summary_version_specific_data": {
        "u64": "1"
      },
      "config_read_setting_impl_cost_base": {
        "u64": "100"
      },
      "config_read_setting_impl_cost_per_byte": {
        "u64": "40"
      },
      "consensus_bad_nodes_stake_threshold": {
        "u64": "20"
      },
      "consensus_commits_per_schedule": null,
      "consensus_gc_depth": {
        "u32": "60"
      },
      "consensus_leader_schedule_window_size": null,
      "consensus_max_acknowledgments_per_block": null,
      "consensus_max_num_transactions_in_block": {
        "u64": "512"
      },
      "consensus_max_transaction_size_bytes": {
        "u64": "262144"
      },
      "consensus_max_transactions_in_block_bytes": {
        "u64": "524288"
      },
      "crypto_invalid_arguments_cost": {
        "u64": "100"
      },
      "debug_print_base_cost": {
        "u64": "52"
      },
      "debug_print_stack_trace_base_cost": {
        "u64": "52"
      },
      "deny_rule_removal_grace_round_floor": null,
      "deny_rule_update_max_entries_per_tx": null,
      "dynamic_field_add_child_object_cost_base": {
        "u64": "100"
      },
      "dynamic_field_add_child_object_struct_tag_cost_per_byte": {
        "u64": "10"
      },
      "dynamic_field_add_child_object_type_cost_per_byte": {
        "u64": "10"
      },
      "dynamic_field_add_child_object_value_cost_per_byte": {
        "u64": "10"
      },
      "dynamic_field_borrow_child_object_child_ref_cost_per_byte": {
        "u64": "10"
      },
      "dynamic_field_borrow_child_object_cost_base": {
        "u64": "100"
      },
      "dynamic_field_borrow_child_object_type_cost_per_byte": {
        "u64": "10"
      },
      "dynamic_field_has_child_object_cost_base": {
        "u64": "100"
      },
      "dynamic_field_has_child_object_with_ty_cost_base": {
        "u64": "100"
      },
      "dynamic_field_has_child_object_with_ty_type_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_has_child_object_with_ty_type_tag_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_hash_type_and_key_cost_base": {
        "u64": "100"
      },
      "dynamic_field_hash_type_and_key_type_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_hash_type_and_key_type_tag_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_hash_type_and_key_value_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_remove_child_object_child_cost_per_byte": {
        "u64": "2"
      },
      "dynamic_field_remove_child_object_cost_base": {
        "u64": "100"
      },
      "dynamic_field_remove_child_object_type_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_k1_decompress_pubkey_cost_base": {
        "u64": "52"
      },
      "ecdsa_k1_ecrecover_keccak256_cost_base": {
        "u64": "500"
      },
      "ecdsa_k1_ecrecover_keccak256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_k1_ecrecover_keccak256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_k1_ecrecover_sha256_cost_base": {
        "u64": "500"
      },
      "ecdsa_k1_ecrecover_sha256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_k1_ecrecover_sha256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_k1_secp256k1_verify_keccak256_cost_base": {
        "u64": "1470"
      },
      "ecdsa_k1_secp256k1_verify_keccak256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_k1_secp256k1_verify_keccak256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_k1_secp256k1_verify_sha256_cost_base": {
        "u64": "1470"
      },
      "ecdsa_k1_secp256k1_verify_sha256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_k1_secp256k1_verify_sha256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_r1_ecrecover_keccak256_cost_base": {
        "u64": "1173"
      },
      "ecdsa_r1_ecrecover_keccak256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_r1_ecrecover_keccak256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_r1_ecrecover_sha256_cost_base": {
        "u64": "1173"
      },
      "ecdsa_r1_ecrecover_sha256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_r1_ecrecover_sha256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_r1_secp256r1_verify_keccak256_cost_base": {
        "u64": "4225"
      },
      "ecdsa_r1_secp256r1_verify_keccak256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_r1_secp256r1_verify_keccak256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecdsa_r1_secp256r1_verify_sha256_cost_base": {
        "u64": "4225"
      },
      "ecdsa_r1_secp256r1_verify_sha256_msg_cost_per_block": {
        "u64": "2"
      },
      "ecdsa_r1_secp256r1_verify_sha256_msg_cost_per_byte": {
        "u64": "2"
      },
      "ecvrf_ecvrf_verify_alpha_string_cost_per_block": {
        "u64": "2"
      },
      "ecvrf_ecvrf_verify_alpha_string_cost_per_byte": {
        "u64": "2"
      },
      "ecvrf_ecvrf_verify_cost_base": {
        "u64": "4848"
      },
      "ed25519_ed25519_verify_cost_base": {
        "u64": "1802"
      },
      "ed25519_ed25519_verify_msg_cost_per_block": {
        "u64": "2"
      },
      "ed25519_ed25519_verify_msg_cost_per_byte": {
        "u64": "2"
      },
      "event_emit_cost_base": {
        "u64": "52"
      },
      "event_emit_output_cost_per_byte": {
        "u64": "10"
      },
      "event_emit_tag_size_derivation_cost_per_byte": {
        "u64": "5"
      },
      "event_emit_value_size_derivation_cost_per_byte": {
        "u64": "2"
      },
      "execution_version": {
        "u64": "1"
      },
      "gas_model_version": {
        "u64": "2"
      },
      "gas_rounding_step": {
        "u64": "1000"
      },
      "groth16_prepare_verifying_key_bls12381_cost_base": {
        "u64": "53838"
      },
      "groth16_prepare_verifying_key_bn254_cost_base": {
        "u64": "82010"
      },
      "groth16_verify_groth16_proof_internal_bls12381_cost_base": {
        "u64": "72090"
      },
      "groth16_verify_groth16_proof_internal_bls12381_cost_per_public_input": {
        "u64": "8213"
      },
      "groth16_verify_groth16_proof_internal_bn254_cost_base": {
        "u64": "115502"
      },
      "groth16_verify_groth16_proof_internal_bn254_cost_per_public_input": {
        "u64": "9484"
      },
      "groth16_verify_groth16_proof_internal_public_input_cost_per_byte": {
        "u64": "2"
      },
      "group_ops_bls12381_decode_g1_cost": {
        "u64": "2848"
      },
      "group_ops_bls12381_decode_g2_cost": {
        "u64": "3770"
      },
      "group_ops_bls12381_decode_gt_cost": {
        "u64": "3068"
      },
      "group_ops_bls12381_decode_scalar_cost": {
        "u64": "7"
      },
      "group_ops_bls12381_g1_add_cost": {
        "u64": "1556"
      },
      "group_ops_bls12381_g1_div_cost": {
        "u64": "5091"
      },
      "group_ops_bls12381_g1_hash_to_base_cost": {
        "u64": "2962"
      },
      "group_ops_bls12381_g1_hash_to_cost_per_byte": {
        "u64": "2"
      },
      "group_ops_bls12381_g1_msm_base_cost": {
        "u64": "62648"
      },
      "group_ops_bls12381_g1_msm_base_cost_per_input": {
        "u64": "1333"
      },
      "group_ops_bls12381_g1_mul_cost": {
        "u64": "4842"
      },
      "group_ops_bls12381_g1_sub_cost": {
        "u64": "1550"
      },
      "group_ops_bls12381_g1_to_uncompressed_g1_cost": {
        "u64": "2099"
      },
      "group_ops_bls12381_g2_add_cost": {
        "u64": "3048"
      },
      "group_ops_bls12381_g2_div_cost": {
        "u64": "9206"
      },
      "group_ops_bls12381_g2_hash_to_base_cost": {
        "u64": "8688"
      },
      "group_ops_bls12381_g2_hash_to_cost_per_byte": {
        "u64": "2"
      },
      "group_ops_bls12381_g2_msm_base_cost": {
        "u64": "131192"
      },
      "group_ops_bls12381_g2_msm_base_cost_per_input": {
        "u64": "3216"
      },
      "group_ops_bls12381_g2_mul_cost": {
        "u64": "9108"
      },
      "group_ops_bls12381_g2_sub_cost": {
        "u64": "3019"
      },
      "group_ops_bls12381_gt_add_cost": {
        "u64": "188"
      },
      "group_ops_bls12381_gt_div_cost": {
        "u64": "27804"
      },
      "group_ops_bls12381_gt_mul_cost": {
        "u64": "27490"
      },
      "group_ops_bls12381_gt_sub_cost": {
        "u64": "497"
      },
      "group_ops_bls12381_msm_max_len": {
        "u32": "32"
      },
      "group_ops_bls12381_pairing_cost": {
        "u64": "26897"
      },
      "group_ops_bls12381_scalar_add_cost": {
        "u64": "10"
      },
      "group_ops_bls12381_scalar_div_cost": {
        "u64": "91"
      },
      "group_ops_bls12381_scalar_mul_cost": {
        "u64": "11"
      },
      "group_ops_bls12381_scalar_sub_cost": {
        "u64": "10"
      },
      "group_ops_bls12381_uncompressed_g1_sum_base_cost": {
        "u64": "77"
      },
      "group_ops_bls12381_uncompressed_g1_sum_cost_per_term": {
        "u64": "26"
      },
      "group_ops_bls12381_uncompressed_g1_sum_max_terms": {
        "u64": "1200"
      },
      "group_ops_bls12381_uncompressed_g1_to_g1_cost": {
        "u64": "677"
      },
      "hash_blake2b256_cost_base": {
        "u64": "10"
      },
      "hash_blake2b256_data_cost_per_block": {
        "u64": "2"
      },
      "hash_blake2b256_data_cost_per_byte": {
        "u64": "2"
      },
      "hash_keccak256_cost_base": {
        "u64": "10"
      },
      "hash_keccak256_data_cost_per_block": {
        "u64": "2"
      },
      "hash_keccak256_data_cost_per_byte": {
        "u64": "2"
      },
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  }
}