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Chain Configuration

Complete reference for Monolythium network parameters. Use this page to configure wallets, development tools, and backend services.

Chain IDs​

NetworkCosmos Chain IDEVM Chain ID (decimal)EVM Chain ID (hex)
Localnetmono-local-12621450x40001
Testnetmono_6940-169400x1B1C
Mainnetmono_6941-169410x1B1D

Native Token​

PropertyValue
NameLythium
SymbolLYTH
Decimals18
Smallest unitalyth (1 LYTH = 10^18 alyth)
Denom (Cosmos)alyth

RPC Endpoints​

Testnet​

ServiceURLProtocol
EVM JSON-RPChttps://evm.testnet.mononodes.xyzHTTP
Cosmos RESThttps://rest.testnet.mononodes.xyzHTTP
Cosmos gRPCgrpc.testnet.mononodes.xyz:443gRPC
CometBFT RPChttps://rpc.testnet.mononodes.xyzHTTP/WS

Mainnet​

ServiceURLProtocol
EVM JSON-RPChttps://evm.mainnet.mononodes.xyzHTTP
Cosmos RESThttps://rest.mainnet.mononodes.xyzHTTP
Cosmos gRPCgrpc.mainnet.mononodes.xyz:443gRPC
CometBFT RPChttps://rpc.mainnet.mononodes.xyzHTTP/WS

Default Ports (Self-Hosted Nodes)​

ServicePort
EVM JSON-RPC8545
EVM WebSocket8546
CometBFT RPC26657
P2P26656
Cosmos REST1317
gRPC9090

Block Explorers​

NetworkURL
Testnettestnet.monoscan.xyz
Mainnetmonoscan.xyz

Explorer URL patterns:

Transaction:  https://testnet.monoscan.xyz/tx/{hash}
Address:      https://testnet.monoscan.xyz/address/{address}
Block:        https://testnet.monoscan.xyz/block/{number}

Faucet​

NetworkURL
Testnetmonohub.xyz/faucet

Address Formats​

Monolythium supports two address formats that derive from the same private key:

FormatPrefixExampleUsed For
EVM (hex)0x0x366d8135D7413C09564044D345A245771c9BaC5BSmart contracts, MetaMask, EVM tools
Cosmos (bech32)mono1mono1xek6yxhzpg5h9nnkzg69z06g38cfzd2r...Staking, governance, IBC, Cosmos wallets

Both addresses control the same account. The EVM address is the last 20 bytes of the Keccak-256 hash of the public key. The Cosmos address is the bech32 encoding of the same 20 bytes with the mono prefix.

Seed Nodes​

NetworkHostname
Testnetseed1.testnet.mononodes.xyz
Testnetseed2.testnet.mononodes.xyz
Testnetseed3.testnet.mononodes.xyz
Mainnetseed1.mainnet.mononodes.xyz
Mainnetseed2.mainnet.mononodes.xyz
Mainnetseed3.mainnet.mononodes.xyz

IBC Configuration​

ParameterValue
IBC activation (testnet)Block 270,000
IBC activation (mainnet)Block 500,000
Provider channelchannel-578
Testnet channelchannel-0
Precompile suiteICS20, ERC-20 middleware, IBC callbacks

Network Parameters​

ParameterValue
Block time~2 seconds
FinalityInstant (single-slot)
ConsensusLythiumBFT (modified CometBFT)
EVM versionparis (no PUSH0)
Transaction typeLegacy only (no EIP-1559)
Minimum gas price10 gwei (10,000,000,000 alyth)
Fee burn90% of transaction fees burned
Inflation8% from genesis
Active validators53

Wallet Configuration​

MetaMask (Manual)​

  1. Open MetaMask and click the network dropdown
  2. Select Add Network > Add a network manually
  3. Enter the following values:

Testnet:

FieldValue
Network NameMonolythium Testnet
New RPC URLhttps://evm.testnet.mononodes.xyz
Chain ID6940
Currency SymbolLYTH
Block Explorer URLhttps://testnet.monoscan.xyz

Mainnet:

FieldValue
Network NameMonolythium
New RPC URLhttps://evm.mainnet.mononodes.xyz
Chain ID6941
Currency SymbolLYTH
Block Explorer URLhttps://monoscan.xyz
  1. Click Save

MetaMask (Programmatic)​

Add Monolythium from your dApp using wallet_addEthereumChain:

await window.ethereum.request({
  method: 'wallet_addEthereumChain',
  params: [{
    chainId: '0x1B1C', // 6940
    chainName: 'Monolythium Testnet',
    nativeCurrency: {
      name: 'Lythium',
      symbol: 'LYTH',
      decimals: 18,
    },
    rpcUrls: ['https://evm.testnet.mononodes.xyz'],
    blockExplorerUrls: ['https://testnet.monoscan.xyz'],
  }],
});

Keplr Chain Suggestion​

Add Monolythium to Keplr using experimentalSuggestChain:

await window.keplr.experimentalSuggestChain({
  chainId: 'mono_6940-1',
  chainName: 'Monolythium Testnet',
  rpc: 'https://rpc.testnet.mononodes.xyz',
  rest: 'https://rest.testnet.mononodes.xyz',
  bip44: { coinType: 60 },
  bech32Config: {
    bech32PrefixAccAddr: 'mono',
    bech32PrefixAccPub: 'monopub',
    bech32PrefixValAddr: 'monovaloper',
    bech32PrefixValPub: 'monovaloperpub',
    bech32PrefixConsAddr: 'monovalcons',
    bech32PrefixConsPub: 'monovalconspub',
  },
  currencies: [{
    coinDenom: 'LYTH',
    coinMinimalDenom: 'alyth',
    coinDecimals: 18,
  }],
  feeCurrencies: [{
    coinDenom: 'LYTH',
    coinMinimalDenom: 'alyth',
    coinDecimals: 18,
    gasPriceStep: {
      low: 10000000000,
      average: 15000000000,
      high: 25000000000,
    },
  }],
  stakeCurrency: {
    coinDenom: 'LYTH',
    coinMinimalDenom: 'alyth',
    coinDecimals: 18,
  },
  features: ['eth-address-gen', 'eth-key-sign'],
});

Monolythium Browser Wallet​

The Monolythium Browser Wallet comes pre-configured with all networks. No manual setup is required.