Guide

EIP-3085 wallet config JSON

Copy-ready wallet_addEthereumChain parameter objects generated from reviewed Main.net fields. Main.net renders JSON text only; it does not connect wallets, request permissions, submit transactions, or recommend RPC providers.

EVM snippets 57

Source links 108

Checked April 30, 2026

Wallet calls None

How to use these snippets

Compare the chain ID, RPC URL, explorer URL, and gas token against the linked source documentation.
Use these snippets as text references for app configuration or manual wallet setup review.
Do not treat a public RPC URL as a production reliability, privacy, or uptime guarantee.

Copy-ready EIP-3085 snippets

Base

Chain ID 8453 / 0x2105; gas token ETH.

{
  "chainId": "0x2105",
  "chainName": "Base",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.base.org"
  ],
  "blockExplorerUrls": [
    "https://base.blockscout.com"
  ]
}

Base network information Base status

Ethereum

Chain ID 1 / 0x1; gas token ETH.

{
  "chainId": "0x1",
  "chainName": "Ethereum",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://ethereum-rpc.publicnode.com"
  ],
  "blockExplorerUrls": [
    "https://etherscan.io"
  ]
}

Ethereum network docs PublicNode Ethereum endpoint

Monad

Chain ID 143 / 0x8f; gas token MON.

{
  "chainId": "0x8f",
  "chainName": "Monad",
  "nativeCurrency": {
    "name": "MON",
    "symbol": "MON",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.monad.xyz"
  ],
  "blockExplorerUrls": [
    "https://monadvision.com"
  ]
}

Monad mainnet information Add Monad mainnet to wallet Monad mainnet announcement

MegaETH

Chain ID 4326 / 0x10e6; gas token ETH.

{
  "chainId": "0x10e6",
  "chainName": "MegaETH",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.megaeth.com/rpc"
  ],
  "blockExplorerUrls": [
    "https://mega.etherscan.io"
  ]
}

Connect to MegaETH MegaETH developer overview

Immutable zkEVM

Chain ID 13371 / 0x343b; gas token IMX.

{
  "chainId": "0x343b",
  "chainName": "Immutable zkEVM",
  "nativeCurrency": {
    "name": "IMX",
    "symbol": "IMX",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.immutable.com"
  ],
  "blockExplorerUrls": [
    "https://explorer.immutable.com"
  ]
}

Immutable chain architecture Immutable wallet setup

Story

Chain ID 1514 / 0x5ea; gas token IP.

{
  "chainId": "0x5ea",
  "chainName": "Story",
  "nativeCurrency": {
    "name": "IP",
    "symbol": "IP",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.storyrpc.io"
  ],
  "blockExplorerUrls": [
    "https://www.storyscan.io"
  ]
}

Story mainnet connection details Story gas token FAQ

Morph

Chain ID 2818 / 0xb02; gas token ETH.

{
  "chainId": "0xb02",
  "chainName": "Morph",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc-quicknode.morph.network"
  ],
  "blockExplorerUrls": [
    "https://explorer.morph.network"
  ]
}

Morph integration page Morph contract addresses

TAC

Chain ID 239 / 0xef; gas token TAC.

{
  "chainId": "0xef",
  "chainName": "TAC",
  "nativeCurrency": {
    "name": "TAC",
    "symbol": "TAC",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.tac.build"
  ],
  "blockExplorerUrls": [
    "https://explorer.tac.build"
  ]
}

TAC network details

Chiliz Chain

Chain ID 88888 / 0x15b38; gas token CHZ.

{
  "chainId": "0x15b38",
  "chainName": "Chiliz Chain",
  "nativeCurrency": {
    "name": "CHZ",
    "symbol": "CHZ",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.ankr.com/chiliz"
  ],
  "blockExplorerUrls": [
    "https://chiliscan.com"
  ]
}

Chiliz connect using RPC Chiliz mainnet and testnet parameters

Manta Pacific

Chain ID 169 / 0xa9; gas token ETH.

{
  "chainId": "0xa9",
  "chainName": "Manta Pacific",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://pacific-rpc.manta.network/http"
  ],
  "blockExplorerUrls": [
    "https://pacific-explorer.manta.network"
  ]
}

Manta Pacific mainnet details

Flow EVM

Chain ID 747 / 0x2eb; gas token FLOW.

{
  "chainId": "0x2eb",
  "chainName": "Flow EVM",
  "nativeCurrency": {
    "name": "FLOW",
    "symbol": "FLOW",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.evm.nodes.onflow.org"
  ],
  "blockExplorerUrls": [
    "https://evm.flowscan.io"
  ]
}

Flow EVM gateway public endpoints Flow EVM overview

BOB

Chain ID 60808 / 0xed88; gas token ETH.

{
  "chainId": "0xed88",
  "chainName": "BOB",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.gobob.xyz"
  ],
  "blockExplorerUrls": [
    "https://explorer.gobob.xyz"
  ]
}

BOB RPC options BOB Mainnet Conduit hub

Arbitrum One

Chain ID 42161 / 0xa4b1; gas token ETH.

{
  "chainId": "0xa4b1",
  "chainName": "Arbitrum One",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://arb1.arbitrum.io/rpc"
  ],
  "blockExplorerUrls": [
    "https://arbiscan.io"
  ]
}

Arbitrum RPC endpoints

BNB Smart Chain

Chain ID 56 / 0x38; gas token BNB.

{
  "chainId": "0x38",
  "chainName": "BNB Smart Chain",
  "nativeCurrency": {
    "name": "BNB",
    "symbol": "BNB",
    "decimals": 18
  },
  "rpcUrls": [
    "https://bsc-dataseed.bnbchain.org"
  ],
  "blockExplorerUrls": [
    "https://bscscan.com"
  ]
}

BNB Smart Chain wallet configuration BNB Smart Chain JSON-RPC endpoints

Avalanche C-Chain

Chain ID 43114 / 0xa86a; gas token AVAX.

{
  "chainId": "0xa86a",
  "chainName": "Avalanche C-Chain",
  "nativeCurrency": {
    "name": "AVAX",
    "symbol": "AVAX",
    "decimals": 18
  },
  "rpcUrls": [
    "https://api.avax.network/ext/bc/C/rpc"
  ],
  "blockExplorerUrls": [
    "https://snowscan.xyz"
  ]
}

Avalanche C-Chain RPC docs Avalanche C-Chain chain list

Flare

Chain ID 14 / 0xe; gas token FLR.

{
  "chainId": "0xe",
  "chainName": "Flare",
  "nativeCurrency": {
    "name": "FLR",
    "symbol": "FLR",
    "decimals": 18
  },
  "rpcUrls": [
    "https://flare-api.flare.network/ext/C/rpc"
  ],
  "blockExplorerUrls": [
    "https://flare-explorer.flare.network"
  ]
}

Flare Developer Hub Flare Explorer

Ethereum Classic

Chain ID 61 / 0x3d; gas token ETC.

{
  "chainId": "0x3d",
  "chainName": "Ethereum Classic",
  "nativeCurrency": {
    "name": "ETC",
    "symbol": "ETC",
    "decimals": 18
  },
  "rpcUrls": [
    "https://etc.rivet.link"
  ],
  "blockExplorerUrls": [
    "https://etc.blockscout.com"
  ]
}

Ethereum Classic public endpoints Ethereum Classic explorers

Hedera

Chain ID 295 / 0x127; gas token HBAR.

{
  "chainId": "0x127",
  "chainName": "Hedera",
  "nativeCurrency": {
    "name": "HBAR",
    "symbol": "HBAR",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.hashio.io/api"
  ],
  "blockExplorerUrls": [
    "https://hashscan.io/mainnet"
  ]
}

Add Hedera to MetaMask Hedera EVM developers

Filecoin

Chain ID 314 / 0x13a; gas token FIL.

{
  "chainId": "0x13a",
  "chainName": "Filecoin",
  "nativeCurrency": {
    "name": "FIL",
    "symbol": "FIL",
    "decimals": 18
  },
  "rpcUrls": [
    "https://api.node.glif.io/rpc/v1"
  ],
  "blockExplorerUrls": [
    "https://filfox.info/en"
  ]
}

Filecoin MetaMask setup Filecoin mainnet RPCs Filecoin mainnet explorers

LUKSO

Chain ID 42 / 0x2a; gas token LYX.

{
  "chainId": "0x2a",
  "chainName": "LUKSO",
  "nativeCurrency": {
    "name": "LYX",
    "symbol": "LYX",
    "decimals": 18
  },
  "rpcUrls": [
    "https://42.rpc.thirdweb.com"
  ],
  "blockExplorerUrls": [
    "https://explorer.lukso.network"
  ]
}

LUKSO network parameters

Core

Chain ID 1116 / 0x45c; gas token CORE.

{
  "chainId": "0x45c",
  "chainName": "Core",
  "nativeCurrency": {
    "name": "CORE",
    "symbol": "CORE",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.coredao.org"
  ],
  "blockExplorerUrls": [
    "https://scan.coredao.org"
  ]
}

Core network configuration Core RPC endpoints

Sei

Chain ID 1329 / 0x531; gas token SEI.

{
  "chainId": "0x531",
  "chainName": "Sei",
  "nativeCurrency": {
    "name": "SEI",
    "symbol": "SEI",
    "decimals": 18
  },
  "rpcUrls": [
    "https://evm-rpc.sei-apis.com"
  ],
  "blockExplorerUrls": [
    "https://seiscan.io"
  ]
}

Sei EVM networks Sei EVM overview

Aurora

Chain ID 1313161554 / 0x4e454152; gas token ETH.

{
  "chainId": "0x4e454152",
  "chainName": "Aurora",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.aurora.dev"
  ],
  "blockExplorerUrls": [
    "https://explorer.aurora.dev"
  ]
}

Aurora documentation Aurora wallet setup

Kaia

Chain ID 8217 / 0x2019; gas token KAIA.

{
  "chainId": "0x2019",
  "chainName": "Kaia",
  "nativeCurrency": {
    "name": "KAIA",
    "symbol": "KAIA",
    "decimals": 18
  },
  "rpcUrls": [
    "https://public-en.node.kaia.io"
  ],
  "blockExplorerUrls": [
    "https://kaiascan.io"
  ]
}

Connect MetaMask to Kaia Kaia public JSON-RPC endpoints

Moonriver

Chain ID 1285 / 0x505; gas token MOVR.

{
  "chainId": "0x505",
  "chainName": "Moonriver",
  "nativeCurrency": {
    "name": "MOVR",
    "symbol": "MOVR",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.api.moonriver.moonbeam.network"
  ],
  "blockExplorerUrls": [
    "https://moonriver.moonscan.io"
  ]
}

Moonriver network endpoints Moonbeam MetaMask settings

Astar

Chain ID 592 / 0x250; gas token ASTR.

{
  "chainId": "0x250",
  "chainName": "Astar",
  "nativeCurrency": {
    "name": "ASTR",
    "symbol": "ASTR",
    "decimals": 18
  },
  "rpcUrls": [
    "https://evm.astar.network"
  ],
  "blockExplorerUrls": [
    "https://astar.blockscout.com"
  ]
}

Astar network RPC endpoints Astar EVM wallet setup

Canto

Chain ID 7700 / 0x1e14; gas token CANTO.

{
  "chainId": "0x1e14",
  "chainName": "Canto",
  "nativeCurrency": {
    "name": "CANTO",
    "symbol": "CANTO",
    "decimals": 18
  },
  "rpcUrls": [
    "https://canto.gravitychain.io"
  ],
  "blockExplorerUrls": [
    "https://www.oklink.com/canto"
  ]
}

Connect to Canto

Injective EVM

Chain ID 1776 / 0x6f0; gas token INJ.

{
  "chainId": "0x6f0",
  "chainName": "Injective EVM",
  "nativeCurrency": {
    "name": "INJ",
    "symbol": "INJ",
    "decimals": 18
  },
  "rpcUrls": [
    "https://sentry.evm-rpc.injective.network"
  ],
  "blockExplorerUrls": [
    "https://blockscout.injective.network"
  ]
}

Injective EVM network information

Harmony

Chain ID 1666600000 / 0x63564c40; gas token ONE.

{
  "chainId": "0x63564c40",
  "chainName": "Harmony",
  "nativeCurrency": {
    "name": "ONE",
    "symbol": "ONE",
    "decimals": 18
  },
  "rpcUrls": [
    "https://api.harmony.one"
  ],
  "blockExplorerUrls": [
    "https://explorer.harmony.one"
  ]
}

Add Harmony to MetaMask Harmony network and faucets

IoTeX

Chain ID 4689 / 0x1251; gas token IOTX.

{
  "chainId": "0x1251",
  "chainName": "IoTeX",
  "nativeCurrency": {
    "name": "IOTX",
    "symbol": "IOTX",
    "decimals": 18
  },
  "rpcUrls": [
    "https://babel-api.mainnet.iotex.io"
  ],
  "blockExplorerUrls": [
    "https://iotexscan.io"
  ]
}

IoTeX RPC endpoints IoTeX exchange integration

Telos EVM

Chain ID 40 / 0x28; gas token TLOS.

{
  "chainId": "0x28",
  "chainName": "Telos EVM",
  "nativeCurrency": {
    "name": "TLOS",
    "symbol": "TLOS",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.telos.net"
  ],
  "blockExplorerUrls": [
    "https://www.teloscan.io"
  ]
}

Telos network information Telos wallet setup

XDC Network

Chain ID 50 / 0x32; gas token XDC.

{
  "chainId": "0x32",
  "chainName": "XDC Network",
  "nativeCurrency": {
    "name": "XDC",
    "symbol": "XDC",
    "decimals": 18
  },
  "rpcUrls": [
    "https://xdc.public-rpc.com"
  ],
  "blockExplorerUrls": [
    "https://xdcscan.com"
  ]
}

XDC listing and endpoint information XDC JSON-RPC API

Kava EVM

Chain ID 2222 / 0x8ae; gas token KAVA.

{
  "chainId": "0x8ae",
  "chainName": "Kava EVM",
  "nativeCurrency": {
    "name": "KAVA",
    "symbol": "KAVA",
    "decimals": 18
  },
  "rpcUrls": [
    "https://evm.kava-rpc.com"
  ],
  "blockExplorerUrls": [
    "https://kavascan.com"
  ]
}

Kava MetaMask configuration Kava public endpoints

Oasis Sapphire

Chain ID 23294 / 0x5afe; gas token ROSE.

{
  "chainId": "0x5afe",
  "chainName": "Oasis Sapphire",
  "nativeCurrency": {
    "name": "ROSE",
    "symbol": "ROSE",
    "decimals": 18
  },
  "rpcUrls": [
    "https://sapphire.oasis.io"
  ],
  "blockExplorerUrls": [
    "https://explorer.oasis.io/mainnet/sapphire"
  ]
}

Oasis Sapphire network information Oasis mainnet parameters

Gnosis

Chain ID 100 / 0x64; gas token xDAI.

{
  "chainId": "0x64",
  "chainName": "Gnosis",
  "nativeCurrency": {
    "name": "xDAI",
    "symbol": "xDAI",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.gnosischain.com"
  ],
  "blockExplorerUrls": [
    "https://gnosisscan.io"
  ]
}

Gnosis mainnet network information Gnosis RPC providers

Celo

Chain ID 42220 / 0xa4ec; gas token CELO.

{
  "chainId": "0xa4ec",
  "chainName": "Celo",
  "nativeCurrency": {
    "name": "CELO",
    "symbol": "CELO",
    "decimals": 18
  },
  "rpcUrls": [
    "https://forno.celo.org"
  ],
  "blockExplorerUrls": [
    "https://celoscan.io"
  ]
}

Celo network information

Linea

Chain ID 59144 / 0xe708; gas token ETH.

{
  "chainId": "0xe708",
  "chainName": "Linea",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.linea.build"
  ],
  "blockExplorerUrls": [
    "https://lineascan.build"
  ]
}

Linea connection settings Linea status

OP Mainnet

Chain ID 10 / 0xa; gas token ETH.

{
  "chainId": "0xa",
  "chainName": "OP Mainnet",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.optimism.io"
  ],
  "blockExplorerUrls": [
    "https://explorer.optimism.io"
  ]
}

Connecting to OP Mainnet OP Stack RPC directory

Scroll

Chain ID 534352 / 0x82750; gas token ETH.

{
  "chainId": "0x82750",
  "chainName": "Scroll",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.scroll.io"
  ],
  "blockExplorerUrls": [
    "https://scrollscan.com"
  ]
}

Scroll developer network configuration Scroll user setup guide

ZKsync Era

Chain ID 324 / 0x144; gas token ETH.

{
  "chainId": "0x144",
  "chainName": "ZKsync Era",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.era.zksync.io"
  ],
  "blockExplorerUrls": [
    "https://explorer.zksync.io"
  ]
}

ZKsync Era network details

Blast

Chain ID 81457 / 0x13e31; gas token ETH.

{
  "chainId": "0x13e31",
  "chainName": "Blast",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.blast.io"
  ],
  "blockExplorerUrls": [
    "https://blastscan.io"
  ]
}

Blast network information Blast status

Polygon PoS

Chain ID 137 / 0x89; gas token POL.

{
  "chainId": "0x89",
  "chainName": "Polygon PoS",
  "nativeCurrency": {
    "name": "POL",
    "symbol": "POL",
    "decimals": 18
  },
  "rpcUrls": [
    "https://polygon.drpc.org"
  ],
  "blockExplorerUrls": [
    "https://polygonscan.com"
  ]
}

Polygon PoS RPC endpoints

Berachain

Chain ID 80094 / 0x138de; gas token BERA.

{
  "chainId": "0x138de",
  "chainName": "Berachain",
  "nativeCurrency": {
    "name": "BERA",
    "symbol": "BERA",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.berachain.com"
  ],
  "blockExplorerUrls": [
    "https://berascan.com"
  ]
}

Connect to Berachain Berachain common resources

Sonic

Chain ID 146 / 0x92; gas token S.

{
  "chainId": "0x92",
  "chainName": "Sonic",
  "nativeCurrency": {
    "name": "S",
    "symbol": "S",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.soniclabs.com"
  ],
  "blockExplorerUrls": [
    "https://sonicscan.org"
  ]
}

Sonic getting started

Unichain

Chain ID 130 / 0x82; gas token ETH.

{
  "chainId": "0x82",
  "chainName": "Unichain",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.unichain.org"
  ],
  "blockExplorerUrls": [
    "https://uniscan.xyz"
  ]
}

Unichain network information Unichain public RPC calls Unichain node providers

World Chain

Chain ID 480 / 0x1e0; gas token ETH.

{
  "chainId": "0x1e0",
  "chainName": "World Chain",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://worldchain-mainnet.g.alchemy.com/public"
  ],
  "blockExplorerUrls": [
    "https://worldscan.org"
  ]
}

World Chain network information World Chain status

Mode

Chain ID 34443 / 0x868b; gas token ETH.

{
  "chainId": "0x868b",
  "chainName": "Mode",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://mainnet.mode.network"
  ],
  "blockExplorerUrls": [
    "https://explorer.mode.network"
  ]
}

Mode network details Mode RPC providers

Ink

Chain ID 57073 / 0xdef1; gas token ETH.

{
  "chainId": "0xdef1",
  "chainName": "Ink",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc-gel.inkonchain.com"
  ],
  "blockExplorerUrls": [
    "https://explorer.inkonchain.com"
  ]
}

Ink network information Ink RPC providers Ink wallet setup

Soneium

Chain ID 1868 / 0x74c; gas token ETH.

{
  "chainId": "0x74c",
  "chainName": "Soneium",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.soneium.org"
  ],
  "blockExplorerUrls": [
    "https://soneium.blockscout.com"
  ]
}

Soneium network information Soneium wallet settings Soneium node providers

Fraxtal

Chain ID 252 / 0xfc; gas token FRAX.

{
  "chainId": "0xfc",
  "chainName": "Fraxtal",
  "nativeCurrency": {
    "name": "FRAX",
    "symbol": "FRAX",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.frax.com"
  ],
  "blockExplorerUrls": [
    "https://fraxscan.com"
  ]
}

Fraxtal network information FRAX on Fraxtal

Moonbeam

Chain ID 1284 / 0x504; gas token GLMR.

{
  "chainId": "0x504",
  "chainName": "Moonbeam",
  "nativeCurrency": {
    "name": "GLMR",
    "symbol": "GLMR",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.api.moonbeam.network"
  ],
  "blockExplorerUrls": [
    "https://moonscan.io"
  ]
}

Moonbeam network endpoints

Mantle

Chain ID 5000 / 0x1388; gas token MNT.

{
  "chainId": "0x1388",
  "chainName": "Mantle",
  "nativeCurrency": {
    "name": "MNT",
    "symbol": "MNT",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.mantle.xyz"
  ],
  "blockExplorerUrls": [
    "https://explorer.mantle.xyz"
  ]
}

Mantle mainnet onboarding Mantle Chainlist entry

Cronos EVM

Chain ID 25 / 0x19; gas token CRO.

{
  "chainId": "0x19",
  "chainName": "Cronos EVM",
  "nativeCurrency": {
    "name": "CRO",
    "symbol": "CRO",
    "decimals": 18
  },
  "rpcUrls": [
    "https://evm.cronos.org"
  ],
  "blockExplorerUrls": [
    "https://explorer.cronos.org"
  ]
}

Cronos network constants Cronos mainnet node docs

Metis Andromeda

Chain ID 1088 / 0x440; gas token METIS.

{
  "chainId": "0x440",
  "chainName": "Metis Andromeda",
  "nativeCurrency": {
    "name": "METIS",
    "symbol": "METIS",
    "decimals": 18
  },
  "rpcUrls": [
    "https://andromeda.metis.io/?owner=1088"
  ],
  "blockExplorerUrls": [
    "https://andromeda-explorer.metis.io"
  ]
}

Metis Andromeda RPC docs

Rootstock

Chain ID 30 / 0x1e; gas token RBTC.

{
  "chainId": "0x1e",
  "chainName": "Rootstock",
  "nativeCurrency": {
    "name": "RBTC",
    "symbol": "RBTC",
    "decimals": 18
  },
  "rpcUrls": [
    "https://public-node.rsk.co"
  ],
  "blockExplorerUrls": [
    "https://explorer.rsk.co"
  ]
}

Rootstock MetaMask network settings Rootstock developer portal

Zora

Chain ID 7777777 / 0x76adf1; gas token ETH.

{
  "chainId": "0x76adf1",
  "chainName": "Zora",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.zora.energy"
  ],
  "blockExplorerUrls": [
    "https://explorer.zora.energy"
  ]
}

Zora Chainlist entry Zora developer docs

Taiko

Chain ID 167000 / 0x28c58; gas token ETH.

{
  "chainId": "0x28c58",
  "chainName": "Taiko",
  "nativeCurrency": {
    "name": "ETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": [
    "https://rpc.mainnet.taiko.xyz"
  ],
  "blockExplorerUrls": [
    "https://taikoscan.io"
  ]
}

Taiko mainnet RPC listing Taikoscan information center

Security boundary

EIP-3085 defines wallet-network request parameters, but this page never calls a wallet API. The safest flow is to copy values, verify them against source documentation, and decide inside your own application or wallet workflow.