Configuration Parameter Reference - Cosmos Documentation

Technical reference for all Cosmos EVM chain parameters organized by configuration phase and module.

For step-by-step configuration guides, see Pre-Genesis & Genesis Setup and Runtime Configuration & Launch.

Pre-Genesis Parameters (Source Code)

Parameters set in source code before building the binary. Require rebuild to change.

Show View Parameters

Bech32 Address Prefix

Attribute	Value
Description	Address format prefix for all Cosmos addresses
Location	`config/config.go:62`
Default	`cosmos`
Type	String (lowercase alphanumeric)
Adjustable	Immutable
Source	`config/config.go`

const Bech32Prefix = "yourchain"

BIP44 Coin Type

Attribute	Value
Description	HD wallet derivation path coin type
Location	`crypto/hd/hdpath.go:9`
Default	`60` (Ethereum)
Type	uint32
Adjustable	Immutable
Standard	SLIP-0044
Source	`crypto/hd/hdpath.go`

Bip44CoinType uint32 = 60

Common Values: 60 (Ethereum/EVM), 118 (Cosmos), 330 (Terra)

EVM Chain ID

Attribute	Value
Description	EIP-155 replay protection chain ID
Location	`config/config.go:78`
Default	`262144`
Type	uint64
Adjustable	Immutable
Standard	EIP-155
Source	`config/config.go`

const EVMChainID = 262144

Note: Must be unique. Check chainlist.org before mainnet.

Default Denominations

Attribute	Value
Description	Default token denominations in config templates
Location	Multiple files
Default	`aatom` (extended), `uatom` (base), `atom` (display)
Type	String
Adjustable	Pre-Genesis
Source	`x/vm/types/params.go:21-25`

Files:

server/config/migration/v0.50-app.toml:11 - minimum-gas-prices
x/vm/types/params.go:21-25 - EVM module defaults
config/constants.go:5-8 - Example chain constants

Genesis Parameters

Parameters configured in genesis.json after init. Location: ~/.yourchain/config/genesis.json

Show View All Genesis Parameters

Root Level

Show View Parameters

chain_id

Attribute	Value
Description	Cosmos chain identifier
Genesis Path	`chain_id`
Default	User-defined during `init`
Type	String
Adjustable	Immutable

"chain_id": "mychain-1"

genesis_time

Attribute	Value
Description	UTC timestamp for chain start
Genesis Path	`genesis_time`
Default	Auto-generated
Type	RFC3339 timestamp
Adjustable	Immutable

"genesis_time": "2024-12-01T00:00:00Z"

initial_height

Attribute	Value
Description	Starting block height
Genesis Path	`initial_height`
Default	`"1"`
Type	String (numeric)
Adjustable	Immutable

VM Module (x/vm)

Show View Parameters

evm_denom

Attribute	Value
Description	Denomination for EVM gas payments
Genesis Path	`app_state.evm.params.evm_denom`
Default	`"aatom"`
Type	String
Adjustable	Governance
Source	`x/vm/types/params.go:21`

"evm_denom": "atoken"

extended_denom_options

Attribute	Value
Description	Extended denomination for non-18 decimal tokens
Genesis Path	`app_state.evm.params.extended_denom_options`
Default	`null`
Type	Object
Required For	6-decimal or 8-decimal tokens
Adjustable	Governance
Source	`x/vm/types/params.go:76`

"extended_denom_options": {
  "extended_denom": "atoken"
}

Note: Requires x/precisebank module for non-18 decimal tokens.

history_serve_window

Attribute	Value
Description	Number of blocks to keep historical state
Genesis Path	`app_state.evm.params.history_serve_window`
Default	`8192`
Type	Integer
Adjustable	Governance
Source	`x/vm/types/params.go:50`

extra_eips

Attribute	Value
Description	Additional EIPs to enable beyond default
Genesis Path	`app_state.evm.params.extra_eips`
Default	`[]`
Type	Array of integers
Adjustable	Governance
Source	`x/vm/types/params.go:33`

"extra_eips": [1153]

active_static_precompiles

Attribute	Value
Description	Enabled precompiled contracts
Genesis Path	`app_state.evm.params.active_static_precompiles`
Default	`[]`
Type	Array of hex addresses (must be sorted)
Adjustable	Governance
Source	`x/vm/types/precompiles.go:22-32`

"active_static_precompiles": [
  "0x0000000000000000000000000000000000000100",
  "0x0000000000000000000000000000000000000400"
]

Available: 0x0100 (P256), 0x0400 (Bech32), 0x0800 (Staking), 0x0801 (Distribution), 0x0802 (ICS20), 0x0803 (Vesting), 0x0804 (Bank), 0x0805 (Gov), 0x0806 (Slashing)

evm_channels

Attribute	Value
Description	IBC channels to EVM chains
Genesis Path	`app_state.evm.params.evm_channels`
Default	`[]`
Type	Array of IBC channel IDs
Adjustable	Governance

"evm_channels": ["channel-0"]

access_control

Attribute	Value
Description	Contract deployment and call permissions
Genesis Path	`app_state.evm.params.access_control`
Default	Permissionless (type 0)
Type	Object
Adjustable	Governance
Source	`x/vm/types/params.go:160-165`

"access_control": {
  "create": {
    "access_type": 0,
    "access_control_list": []
  },
  "call": {
    "access_type": 0,
    "access_control_list": []
  }
}

Types: 0 = Permissionless, 1 = Restricted (blocklist), 2 = Permissioned (allowlist)

FeeMarket Module (x/feemarket)

Show View Parameters

no_base_fee

Attribute	Value
Description	Disable EIP-1559 base fee mechanism
Genesis Path	`app_state.feemarket.params.no_base_fee`
Default	`false`
Type	Boolean
Adjustable	Governance
Source	`x/feemarket/types/params.go:21`

base_fee

Attribute	Value
Description	Initial base fee per gas (wei)
Genesis Path	`app_state.feemarket.params.base_fee`
Default	`"1000000000"` (1 gwei)
Type	String (decimal)
Adjustable	Governance
Source	`x/feemarket/types/params.go:13`

base_fee_change_denominator

Attribute	Value
Description	Max base fee % change per block = 1/denominator
Genesis Path	`app_state.feemarket.params.base_fee_change_denominator`
Default	`8` (±12.5% max)
Type	uint32
Adjustable	Governance

elasticity_multiplier

Attribute	Value
Description	Gas target = max_gas / elasticity_multiplier
Genesis Path	`app_state.feemarket.params.elasticity_multiplier`
Default	`2` (50% target)
Type	uint32
Adjustable	Governance

min_gas_price

Attribute	Value
Description	Network-wide minimum gas price floor
Genesis Path	`app_state.feemarket.params.min_gas_price`
Default	`"0"`
Type	String (decimal)
Adjustable	Governance
Source	`x/feemarket/types/params.go:17`

min_gas_multiplier

Attribute	Value
Description	Minimum gas price as fraction of base fee
Genesis Path	`app_state.feemarket.params.min_gas_multiplier`
Default	`"0.5"` (50%)
Type	String (decimal, 0-1)
Adjustable	Governance
Source	`x/feemarket/types/params.go:15`

enable_height

Attribute	Value
Description	Block height to activate EIP-1559
Genesis Path	`app_state.feemarket.params.enable_height`
Default	`0` (enabled from genesis)
Type	int64
Adjustable	Governance
Source	`x/feemarket/types/params.go:19`

ERC20 Module (x/erc20)

Show View Parameters

enable_erc20

Attribute	Value
Description	Enable ERC20 module functionality
Genesis Path	`app_state.erc20.params.enable_erc20`
Default	`true`
Type	Boolean
Adjustable	Governance
Source	`x/erc20/types/params.go:26`

permissionless_registration

Attribute	Value
Description	Allow anyone to register token pairs
Genesis Path	`app_state.erc20.params.permissionless_registration`
Default	`true`
Type	Boolean
Adjustable	Governance
Source	`x/erc20/types/params.go:27`

native_precompiles

Attribute	Value
Description	ERC20 precompile addresses for native tokens
Genesis Path	`app_state.erc20.native_precompiles`
Default	`[]`
Type	Array of hex addresses

"native_precompiles": ["0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE"]

token_pairs

Attribute	Value
Description	Registered Cosmos denom ↔ ERC20 mappings
Genesis Path	`app_state.erc20.token_pairs`
Default	`[]`
Type	Array of token pair objects

"token_pairs": [{
  "erc20_address": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
  "denom": "atoken",
  "enabled": true,
  "contract_owner": 1
}]

contract_owner: 0 = External, 1 = Module

Bank Module

Show View Parameters

denom_metadata

Attribute	Value
Description	Token denomination metadata
Genesis Path	`app_state.bank.denom_metadata`
Default	`[]`
Type	Array of metadata objects
Adjustable	Governance

"denom_metadata": [{
  "description": "Native token",
  "denom_units": [
    {"denom": "atoken", "exponent": 0},
    {"denom": "token", "exponent": 18}
  ],
  "base": "atoken",
  "display": "token",
  "name": "Token",
  "symbol": "TKN"
}]

Staking Module

Show View Parameters

bond_denom

Attribute	Value
Description	Denomination for staking
Genesis Path	`app_state.staking.params.bond_denom`
Default	`"stake"`
Type	String
Adjustable	Governance (not recommended)

Note: Must match evm_denom and mint_denom.

unbonding_time

Attribute	Value
Description	Duration tokens locked after unstaking
Genesis Path	`app_state.staking.params.unbonding_time`
Default	`"1814400s"` (21 days)
Type	Duration string
Adjustable	Governance

max_validators

Attribute	Value
Description	Maximum active validators
Genesis Path	`app_state.staking.params.max_validators`
Default	`100`
Type	uint32
Adjustable	Governance

max_entries

Attribute	Value
Description	Max concurrent unbonding/redelegations per pair
Genesis Path	`app_state.staking.params.max_entries`
Default	`7`
Type	uint32
Adjustable	Governance

historical_entries

Attribute	Value
Description	Historical validator set entries to keep
Genesis Path	`app_state.staking.params.historical_entries`
Default	`10000`
Type	uint32
Adjustable	Governance

min_commission_rate

Attribute	Value
Description	Minimum validator commission rate
Genesis Path	`app_state.staking.params.min_commission_rate`
Default	`"0.000000000000000000"` (0%)
Type	String (decimal, 18 places)
Adjustable	Governance

Slashing Module

Show View Parameters

signed_blocks_window

Attribute	Value
Description	Blocks tracked for validator liveness
Genesis Path	`app_state.slashing.params.signed_blocks_window`
Default	`"10000"`
Type	String (integer)
Adjustable	Governance

min_signed_per_window

Attribute	Value
Description	Minimum fraction of blocks to sign
Genesis Path	`app_state.slashing.params.min_signed_per_window`
Default	`"0.500000000000000000"` (50%)
Type	String (decimal)
Adjustable	Governance

downtime_jail_duration

Attribute	Value
Description	Jail duration for downtime
Genesis Path	`app_state.slashing.params.downtime_jail_duration`
Default	`"600s"` (10 minutes)
Type	Duration string
Adjustable	Governance

slash_fraction_double_sign

Attribute	Value
Description	Stake % slashed for double-signing
Genesis Path	`app_state.slashing.params.slash_fraction_double_sign`
Default	`"0.050000000000000000"` (5%)
Type	String (decimal)
Adjustable	Governance

slash_fraction_downtime

Attribute	Value
Description	Stake % slashed for downtime
Genesis Path	`app_state.slashing.params.slash_fraction_downtime`
Default	`"0.010000000000000000"` (1%)
Type	String (decimal)
Adjustable	Governance

Governance Module

Show View Parameters

min_deposit

Attribute	Value
Description	Minimum deposit to submit proposal
Genesis Path	`app_state.gov.params.min_deposit`
Default	Chain-specific
Type	Array of coin objects
Adjustable	Governance

"min_deposit": [{"denom": "atoken", "amount": "10000000000000000000"}]

max_deposit_period

Attribute	Value
Description	Time to reach minimum deposit
Genesis Path	`app_state.gov.params.max_deposit_period`
Default	`"172800s"` (2 days)
Type	Duration string
Adjustable	Governance

voting_period

Attribute	Value
Description	Voting duration for proposals
Genesis Path	`app_state.gov.params.voting_period`
Default	`"172800s"` (2 days)
Type	Duration string
Adjustable	Governance

expedited_voting_period

Attribute	Value
Description	Voting duration for expedited proposals
Genesis Path	`app_state.gov.params.expedited_voting_period`
Default	`"86400s"` (1 day)
Type	Duration string
Adjustable	Governance

quorum

Attribute	Value
Description	Minimum participation for valid proposal
Genesis Path	`app_state.gov.params.quorum`
Default	`"0.334"` (33.4%)
Type	String (decimal)
Adjustable	Governance

threshold

Attribute	Value
Description	Minimum Yes votes to pass
Genesis Path	`app_state.gov.params.threshold`
Default	`"0.5"` (50%)
Type	String (decimal)
Adjustable	Governance

veto_threshold

Attribute	Value
Description	NoWithVeto votes to reject
Genesis Path	`app_state.gov.params.veto_threshold`
Default	`"0.334"` (33.4%)
Type	String (decimal)
Adjustable	Governance

expedited_threshold

Attribute	Value
Description	Yes votes required for expedited proposals
Genesis Path	`app_state.gov.params.expedited_threshold`
Default	`"0.667"` (66.7%)
Type	String (decimal)
Adjustable	Governance

expedited_min_deposit

Attribute	Value
Description	Minimum deposit for expedited proposals
Genesis Path	`app_state.gov.params.expedited_min_deposit`
Default	5x standard min_deposit
Type	Array of coin objects
Adjustable	Governance

Mint Module

Show View Parameters

mint_denom

Attribute	Value
Description	Denomination of minted tokens
Genesis Path	`app_state.mint.params.mint_denom`
Default	`"stake"`
Type	String
Adjustable	Governance (not recommended)

Note: Must match bond_denom and evm_denom.

inflation_rate_change

Attribute	Value
Description	Max annual inflation rate change
Genesis Path	`app_state.mint.params.inflation_rate_change`
Default	`"0.130000000000000000"` (13%)
Type	String (decimal)
Adjustable	Governance

inflation_max

Attribute	Value
Description	Maximum annual inflation rate
Genesis Path	`app_state.mint.params.inflation_max`
Default	`"0.200000000000000000"` (20%)
Type	String (decimal)
Adjustable	Governance

inflation_min

Attribute	Value
Description	Minimum annual inflation rate
Genesis Path	`app_state.mint.params.inflation_min`
Default	`"0.070000000000000000"` (7%)
Type	String (decimal)
Adjustable	Governance

goal_bonded

Attribute	Value
Description	Target bonded token ratio
Genesis Path	`app_state.mint.params.goal_bonded`
Default	`"0.670000000000000000"` (67%)
Type	String (decimal)
Adjustable	Governance

blocks_per_year

Attribute	Value
Description	Expected blocks per year
Genesis Path	`app_state.mint.params.blocks_per_year`
Default	`"6311520"` (~5s blocks)
Type	String (integer)
Adjustable	Governance

Distribution Module

Show View Parameters

community_tax

Attribute	Value
Description	Rewards percentage to community pool
Genesis Path	`app_state.distribution.params.community_tax`
Default	`"0.020000000000000000"` (2%)
Type	String (decimal)
Adjustable	Governance

withdraw_addr_enabled

Attribute	Value
Description	Allow custom withdraw addresses
Genesis Path	`app_state.distribution.params.withdraw_addr_enabled`
Default	`true`
Type	Boolean
Adjustable	Governance

base_proposer_reward

Attribute	Value
Description	Deprecated - Set to zero
Genesis Path	`app_state.distribution.params.base_proposer_reward`
Default	`"0.000000000000000000"`
Type	String (decimal)

bonus_proposer_reward

Attribute	Value
Description	Deprecated - Set to zero
Genesis Path	`app_state.distribution.params.bonus_proposer_reward`
Default	`"0.000000000000000000"`
Type	String (decimal)

Runtime Configuration (app.toml)

Node-specific parameters. Location: ~/.yourchain/config/app.toml

Show View All app.toml Parameters

Base Configuration

Show View Parameters

minimum-gas-prices

Attribute	Value
Description	Node minimum gas price
Section	Root
Adjustable	Per Node
Default	`"0aatom"`
Format	`<amount><denom>`
Source	`server/config/migration/v0.50-app.toml:11`

minimum-gas-prices = "1000000000atoken"

pruning

Attribute	Value
Description	State pruning strategy
Section	Root
Adjustable	Per Node
Default	`"default"`
Options	`default`, `nothing`, `everything`, `custom`

Values: default (keep 362,880 states), nothing (archive), everything (keep 2), custom

pruning-keep-recent / pruning-interval

Attribute	Value
Description	Custom pruning parameters
Section	Root
Adjustable	Per Node
Default	`"0"` / `"0"`
Type	Integer

Only used if pruning = "custom"

halt-height / halt-time

Attribute	Value
Description	Graceful halt at height/time
Section	Root
Adjustable	Per Node
Default	`0`
Type	Integer / Unix timestamp

min-retain-blocks

Attribute	Value
Description	Minimum blocks for CometBFT pruning
Section	Root
Adjustable	Per Node
Default	`0`
Type	Integer

inter-block-cache

Attribute	Value
Description	Enable inter-block caching
Section	Root
Adjustable	Per Node
Default	`true`
Type	Boolean

index-events

Attribute	Value
Description	Event types to index (empty = all)
Section	Root
Adjustable	Per Node
Default	`[]`
Type	Array of strings

iavl-cache-size

Attribute	Value
Description	IAVL tree cache size (nodes)
Section	Root
Adjustable	Per Node
Default	`781250`
Type	Integer

iavl-disable-fastnode

Attribute	Value
Description	Disable IAVL fast node
Section	Root
Adjustable	Per Node
Default	`false`
Type	Boolean

app-db-backend

Attribute	Value
Description	Database backend
Section	Root
Adjustable	Per Node
Default	`""` (use CometBFT default)
Options	`goleveldb`, `rocksdb`, `pebbledb`

EVM Configuration

Show View Parameters

tracer

Attribute	Value
Description	VM tracer type
Section	`[evm]`
Adjustable	Per Node
Default	`""`
Options	`""`, `"json"`, `"markdown"`, `"struct"`, `"access_list"`
Source	`server/config/config.go:56`

max-tx-gas-wanted

Attribute	Value
Description	Max gas per transaction
Section	`[evm]`
Adjustable	Per Node
Default	`0` (unlimited)
Type	uint64
Source	`server/config/config.go:62`

cache-preimage

Attribute	Value
Description	Track SHA3 preimages
Section	`[evm]`
Adjustable	Per Node
Default	`false`
Type	Boolean
Source	`server/config/config.go:59`

evm-chain-id

Attribute	Value
Description	EIP-155 chain ID (read-only)
Section	`[evm]`
Adjustable	Per Node
Default	From source code
Type	uint64
Source	`server/config/config.go:149`

Note: Written during init, do not manually edit.

min-tip

Attribute	Value
Description	Minimum priority fee (wei)
Section	`[evm]`
Adjustable	Per Node
Default	`0`
Type	uint64
Source	`server/config/config.go:68`

geth-metrics-address

Attribute	Value
Description	Geth metrics server address
Section	`[evm]`
Adjustable	Per Node
Default	`"127.0.0.1:8100"`
Format	`host:port`
Source	`server/config/config.go:71`

EVM Mempool

Show View Parameters

price-limit

Attribute	Value
Description	Minimum gas price (wei)
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`1`
Type	uint64
Source	`server/config/config.go:179`

price-bump

Attribute	Value
Description	Price increase % to replace tx
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`10` (10%)
Type	uint64
Source	`server/config/config.go:180`

account-slots

Attribute	Value
Description	Executable slots per account
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`16`
Type	uint64
Source	`server/config/config.go:181`

global-slots

Attribute	Value
Description	Max executable slots (all accounts)
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`5120`
Type	uint64
Source	`server/config/config.go:182`

account-queue

Attribute	Value
Description	Non-executable slots per account
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`64`
Type	uint64
Source	`server/config/config.go:183`

global-queue

Attribute	Value
Description	Non-executable slots (all accounts)
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`1024`
Type	uint64
Source	`server/config/config.go:184`

lifetime

Attribute	Value
Description	Max time for queued txs
Section	`[evm.mempool]`
Adjustable	Per Node
Default	`"3h0m0s"`
Type	Duration string
Source	`server/config/config.go:185`

JSON-RPC Configuration

Show View Parameters

enable

Attribute	Value
Description	Enable JSON-RPC server
Section	`[json-rpc]`
Adjustable	Per Node
Default	`false`
Type	Boolean
Source	`server/config/config.go:236`

address

Attribute	Value
Description	HTTP server address
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"127.0.0.1:8545"`
Format	`host:port`
Source	`server/config/config.go:47`

ws-address

Attribute	Value
Description	WebSocket server address
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"127.0.0.1:8546"`
Format	`host:port`
Source	`server/config/config.go:50`

api

Attribute	Value
Description	Enabled JSON-RPC namespaces
Section	`[json-rpc]`
Adjustable	Per Node
Default	`["eth", "net", "web3"]`
Type	Array of strings
Source	`server/config/config.go:304-310`

api = ["eth", "net", "web3", "txpool"]

Available: eth, net, web3, txpool, debug, personal, miner

gas-cap

Attribute	Value
Description	Gas limit for eth_call
Section	`[json-rpc]`
Adjustable	Per Node
Default	`25000000`
Type	uint64
Source	`server/config/config.go:74`

allow-insecure-unlock

Attribute	Value
Description	Allow account unlocking via HTTP
Section	`[json-rpc]`
Adjustable	Per Node
Default	`true`
Type	Boolean
Source	`server/config/config.go:77`

evm-timeout

Attribute	Value
Description	Timeout for eth_call
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"5s"`
Type	Duration string
Source	`server/config/config.go:92`

txfee-cap

Attribute	Value
Description	Tx fee cap (token units)
Section	`[json-rpc]`
Adjustable	Per Node
Default	`1.0`
Type	Float
Source	`server/config/config.go:95`

filter-cap

Attribute	Value
Description	Max filters
Section	`[json-rpc]`
Adjustable	Per Node
Default	`200`
Type	int32
Source	`server/config/config.go:80`

feehistory-cap

Attribute	Value
Description	Max blocks for fee history
Section	`[json-rpc]`
Adjustable	Per Node
Default	`100`
Type	int32
Source	`server/config/config.go:83`

logs-cap

Attribute	Value
Description	Max results from eth_getLogs
Section	`[json-rpc]`
Adjustable	Per Node
Default	`10000`
Type	int32
Source	`server/config/config.go:86`

block-range-cap

Attribute	Value
Description	Max block range for eth_getLogs
Section	`[json-rpc]`
Adjustable	Per Node
Default	`10000`
Type	int32
Source	`server/config/config.go:89`

http-timeout

Attribute	Value
Description	HTTP read/write timeout
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"30s"`
Type	Duration string
Source	`server/config/config.go:98`

http-idle-timeout

Attribute	Value
Description	HTTP idle timeout
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"2m0s"`
Type	Duration string
Source	`server/config/config.go:101`

allow-unprotected-txs

Attribute	Value
Description	Allow non-EIP155 txs
Section	`[json-rpc]`
Adjustable	Per Node
Default	`false`
Type	Boolean
Source	`server/config/config.go:104`

batch-request-limit

Attribute	Value
Description	Max requests in batch
Section	`[json-rpc]`
Adjustable	Per Node
Default	`1000`
Type	Integer
Source	`server/config/config.go:108`

batch-response-max-size

Attribute	Value
Description	Max batch response bytes
Section	`[json-rpc]`
Adjustable	Per Node
Default	`25000000` (25 MB)
Type	Integer
Source	`server/config/config.go:112`

max-open-connections

Attribute	Value
Description	Max simultaneous connections
Section	`[json-rpc]`
Adjustable	Per Node
Default	`0` (unlimited)
Type	Integer
Source	`server/config/config.go:115`

enable-indexer

Attribute	Value
Description	Enable EVM tx indexer
Section	`[json-rpc]`
Adjustable	Per Node
Default	`false`
Type	Boolean
Source	`server/config/config.go:256`

metrics-address

Attribute	Value
Description	Metrics server address
Section	`[json-rpc]`
Adjustable	Per Node
Default	`"127.0.0.1:6065"`
Format	`host:port`
Source	`server/config/config.go:53`

ws-origins

Attribute	Value
Description	Allowed WebSocket origins
Section	`[json-rpc]`
Adjustable	Per Node
Default	`["127.0.0.1", "localhost"]`
Type	Array of strings
Source	`server/config/config.go:120-122`

enable-profiling

Attribute	Value
Description	Enable profiling in debug namespace
Section	`[json-rpc]`
Adjustable	Per Node
Default	`false`
Type	Boolean
Source	`server/config/config.go:124`

Warning: Never enable on public nodes.

TLS Configuration

Show View Parameters

certificate-path

Attribute	Value
Description	TLS certificate .pem path
Section	`[tls]`
Adjustable	Per Node
Default	`""` (disabled)
Type	File path

key-path

Attribute	Value
Description	TLS key .pem path
Section	`[tls]`
Adjustable	Per Node
Default	`""` (disabled)
Type	File path

Telemetry Configuration

Show View Parameters

service-name

Attribute	Value
Description	Service name prefix
Section	`[telemetry]`
Adjustable	Per Node
Default	`""`
Type	String

enabled

Attribute	Value
Description	Enable telemetry
Section	`[telemetry]`
Adjustable	Per Node
Default	`false`
Type	Boolean

enable-hostname / enable-hostname-label / enable-service-label

Attribute	Value
Description	Include hostname/service in metrics
Section	`[telemetry]`
Adjustable	Per Node
Default	`false`
Type	Boolean

Runtime Configuration (config.toml)

CometBFT configuration. Location: ~/.yourchain/config/config.toml

Show View All config.toml Parameters

P2P Configuration

Show View Parameters

persistent_peers

Attribute	Value
Description	Persistent peer connections
Section	`[p2p]`
Adjustable	Per Node
Default	`""`
Format	`node_id@ip:port,node_id2@ip:port`

laddr

Attribute	Value
Description	P2P listen address
Section	`[p2p]`
Adjustable	Per Node
Default	`"tcp://0.0.0.0:26656"`
Format	`tcp://host:port`

Consensus Configuration

Show View Parameters

timeout_commit

Attribute	Value
Description	Time before starting next block
Section	`[consensus]`
Adjustable	Per Node
Default	`"5s"`
Type	Duration string

timeout_propose / timeout_prevote / timeout_precommit

Attribute	Value
Description	Consensus phase timeouts
Section	`[consensus]`
Adjustable	Per Node
Default	`"3s"` / `"1s"` / `"1s"`
Type	Duration string

RPC Configuration

Show View Parameters

laddr

Attribute	Value
Description	CometBFT RPC address
Section	`[rpc]`
Adjustable	Per Node
Default	`"tcp://127.0.0.1:26657"`
Format	`tcp://host:port`

Instrumentation

Show View Parameters

prometheus

Attribute	Value
Description	Enable Prometheus metrics
Section	`[instrumentation]`
Adjustable	Per Node
Default	`false`
Type	Boolean

prometheus_listen_addr

Attribute	Value
Description	Prometheus metrics address
Section	`[instrumentation]`
Adjustable	Per Node
Default	`":26660"`
Format	`:port`

Runtime Configuration (client.toml)

CLI client configuration. Location: ~/.yourchain/config/client.toml

Show View All client.toml Parameters

chain-id

Attribute	Value
Description	Chain ID for CLI operations
Section	Root
Adjustable	Per Node
Default	`""` (must be set)
Type	String

Note: Required for node startup. Must match genesis.

keyring-backend

Attribute	Value
Description	Keyring storage backend
Section	Root
Adjustable	Per Node
Default	`"os"`
Options	`os`, `file`, `test`

Values: os (production), file (encrypted), test (dev only)

output

Attribute	Value
Description	CLI output format
Section	Root
Adjustable	Per Node
Default	`"text"`
Options	`text`, `json`

node

Attribute	Value
Description	CometBFT RPC endpoint
Section	Root
Adjustable	Per Node
Default	`"tcp://localhost:26657"`
Format	`tcp://host:port`

broadcast-mode

Attribute	Value
Description	Transaction broadcast mode
Section	Root
Adjustable	Per Node
Default	`"sync"`
Options	`sync`, `async`, `block`

Values: sync (recommended), async (fast), block (wait for inclusion)

Summary

By Configuration Phase

Phase	When	Changeability
Pre-Genesis	Before `init`	Rebuild required
Genesis	After `init`, before launch	Via governance
Runtime	After launch	Restart node

Critical (Immutable After Genesis)

Parameter	Reason
EVM Chain ID	Transaction replay protection
Bech32 Prefix	Address format
BIP44 Coin Type	Wallet derivation

Pre-Genesis Setup

Configuration guide

Runtime & Launch

Launch procedures

VM Module

EVM module docs

FeeMarket Module

Fee market docs

ERC20 Module

ERC20 module docs

PreciseBank Module

Precision handling

Cosmos EVM

​Pre-Genesis Parameters (Source Code)

​Bech32 Address Prefix

​BIP44 Coin Type

​EVM Chain ID

​Default Denominations

​Genesis Parameters

​Root Level

​chain_id

​genesis_time

​initial_height

​VM Module (x/vm)

​evm_denom

​extended_denom_options

​history_serve_window

​extra_eips

​active_static_precompiles

​evm_channels

​access_control

​FeeMarket Module (x/feemarket)

​no_base_fee

​base_fee

​base_fee_change_denominator

​elasticity_multiplier

​min_gas_price

​min_gas_multiplier

​enable_height

​ERC20 Module (x/erc20)

​enable_erc20

​permissionless_registration

​native_precompiles

​token_pairs

​Bank Module

​denom_metadata

​Staking Module

​bond_denom

​unbonding_time

​max_validators

​max_entries

​historical_entries

​min_commission_rate

​Slashing Module

​signed_blocks_window

​min_signed_per_window

​downtime_jail_duration

​slash_fraction_double_sign

​slash_fraction_downtime

​Governance Module

​min_deposit

​max_deposit_period

​voting_period

​expedited_voting_period

​quorum

​threshold

​veto_threshold

​expedited_threshold

​expedited_min_deposit

​Mint Module

​mint_denom

​inflation_rate_change

​inflation_max

​inflation_min

​goal_bonded

​blocks_per_year

​Distribution Module

​community_tax

​withdraw_addr_enabled

​base_proposer_reward

​bonus_proposer_reward

​Runtime Configuration (app.toml)

​Base Configuration

​minimum-gas-prices

​pruning

​pruning-keep-recent / pruning-interval

​halt-height / halt-time

​min-retain-blocks

​inter-block-cache

​index-events

​iavl-cache-size

​iavl-disable-fastnode

Pre-Genesis Parameters (Source Code)

Bech32 Address Prefix

BIP44 Coin Type

EVM Chain ID

Default Denominations

Genesis Parameters

Root Level

chain_id

genesis_time

initial_height

VM Module (x/vm)

evm_denom

extended_denom_options

history_serve_window

extra_eips

active_static_precompiles

evm_channels

access_control

FeeMarket Module (x/feemarket)

no_base_fee

base_fee

base_fee_change_denominator

elasticity_multiplier

min_gas_price

min_gas_multiplier

enable_height

ERC20 Module (x/erc20)

enable_erc20

permissionless_registration

native_precompiles

token_pairs

Bank Module

denom_metadata

Staking Module

bond_denom

unbonding_time

max_validators

max_entries

historical_entries

min_commission_rate

Slashing Module

signed_blocks_window

min_signed_per_window

downtime_jail_duration

slash_fraction_double_sign

slash_fraction_downtime

Governance Module

min_deposit

max_deposit_period

voting_period

expedited_voting_period

quorum

threshold

veto_threshold

expedited_threshold

expedited_min_deposit

Mint Module

mint_denom

inflation_rate_change

inflation_max

inflation_min

goal_bonded

blocks_per_year

Distribution Module

community_tax

withdraw_addr_enabled

base_proposer_reward

bonus_proposer_reward

Runtime Configuration (app.toml)

Base Configuration

minimum-gas-prices

pruning

pruning-keep-recent / pruning-interval

halt-height / halt-time

min-retain-blocks

inter-block-cache

index-events

iavl-cache-size

iavl-disable-fastnode

app-db-backend