Chain profile

Monad chain ID 143, RPC URL, and explorer

Source snapshot

Source evidence snapshot July 4, 2026. Monad mainnet uses chain ID 143 / 0x8f, RPC URL https://rpc.monad.xyz, MonadVision explorer, and MON as the gas token. Verify the linked Monad sources and current RPC response before using the public endpoint in a wallet, script, or app.

Quick settings

Monad chain ID answer

Use chain ID 143 / 0x8f for Monad mainnet, with RPC URL https://rpc.monad.xyz, MonadVision explorer, and MON as the gas token. Copy the fields below, then verify the linked source docs and current endpoint response before use.

Chain ID
143 / 0x8f
RPC URL
https://rpc.monad.xyz
Explorer
https://monadvision.com
Gas token
MON
Source docs
Monad docs
Latest check
Jul 20, 2026
Source snapshot
July 4, 2026
Config path
wallet_addEthereumChain JSON
Availability check:Public RPC checks can fail temporarily because endpoints are shared or rate-limited. Treat the latest eth_chainId probe as a setup signal, then confirm the source links and current RPC availability.

Copy Monad configOpen Monad guideExplorer directoryGas token directory

Good fit when you need:
  • the Monad chain ID, RPC URL, explorer, and gas token in one place;
  • source documentation links beside the copied setup fields;
  • manual wallet config fields without connecting a wallet or choosing an RPC provider.
Before you paste these fields:
  • compare the chain ID against the source link on this page;
  • open the explorer once and confirm it matches the network you expect;
  • use the public RPC for setup checks, then choose monitored infrastructure for production traffic.

Exact setup guide

Monad chain ID and RPC guide

Open this guide when you specifically need chain ID, RPC URL, explorer, gas token, or wallet configfor Monad. It keeps the copied fields, official/source docs, and setup cautions together in one focused reference.

Open Monad chain ID and RPC guideChain ID listMainnet RPC list

Chain ID143 / 0x8f
RPC URLhttps://rpc.monad.xyz
Explorerhttps://monadvision.com
Gas tokenMON
VerificationVerified metadata
Source snapshotJuly 4, 2026
Evidence snapshot

Verification record

Automated source snapshots and recorded probe evidence are tracked separately. The source snapshot timestamp is not a manual review date. This is not a live uptime, latency, or production reliability monitor. If a recorded public RPC probe fails, verify the source links and current endpoint availability before changing production configuration.

Automated source snapshot
Verification status
Verified metadata
Source snapshot run
source-monitoring-2026-07-04
Source snapshot tool
source-monitoring-refresh
Source set
Monad docs
Latest recorded chain ID probe
eth_chainId matched expected 0x8f; observed 0x8f on

MethodologyReport a correction

Monad wallet-add fields

Wallet directory sites often expose a connect button. Main.net keeps the same MetaMask and EIP-3085 setup fields as text so developers can compare them with official/source docs before calling wallet_addEthereumChain.

chainId
0x8f (143)
chainName
Monad
nativeCurrency
MON; name MON, symbol MON, decimals 18
rpcUrls
https://rpc.monad.xyz
blockExplorerUrls
https://monadvision.com

Monitoring evidence

These checks are review signals only. They are not uptime, latency, privacy, or production reliability claims. A source fetch failure or eth_chainId failure can mean a source page or public RPC endpoint was unavailable, changed, or rate-limited during a check. Re-open source links and test current RPC availability before relying on a public endpoint.

Snapshot generated
Source checks
3 sources checked
Source changes
0 changes since the previous source hash snapshot
Source fetch failures
0
eth_chainId probe
matched expected 0x8f
Per-source check timing
Included in the monitoring snapshot, not represented as a manual review or page freshness date

View monitoring snapshots orsource change history.

Network endpoints

Primary public RPC
https://rpc.monad.xyz
Explorer
https://monadvision.com
Official/source documentation
Monad docs
Chain type
EVM L1 mainnet
Chain ID hex
0x8f
Source snapshot provenance
source-monitoring-2026-07-04 via source-monitoring-refresh

Monad common questions

What is the Monad mainnet RPC URL?
Monad's listed primary public RPC URL is https://rpc.monad.xyz.
What is Monad's chain ID?
Monad's listed chain ID is 143.
What block explorer does Monad use?
Monad's listed block explorer is https://monadvision.com.
What gas token does Monad use?
Monad's listed gas token is MON.

Copy-ready config

Neutral app configuration built from the verified fields above. Copy buttons only place text on your clipboard; they do not connect a wallet, request permissions, or rank RPC providers.

Chain ID decimal143
Chain ID hex0x8f
RPC URLhttps://rpc.monad.xyz
Explorer URLhttps://monadvision.com
EIP-3085-shaped JSON

Rendered as text for manual review before use.

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

Developer snippets

Static examples generated from Main.net fields. These snippets are for manual configuration review and read-only RPC checks; they do not connect wallets, create signers, submit writes, or rank providers.

ts

viem chain definition

Read-only snippet generated from Main.net fields. Review official sources before production use.

import { defineChain } from 'viem'

export const monadMainnet = defineChain({
  id: 143,
  name: "Monad",
  nativeCurrency: {
    name: "MON",
    symbol: "MON",
    decimals: 18,
  },
  rpcUrls: {
    default: { http: ["https://rpc.monad.xyz"] },
    public: { http: ["https://rpc.monad.xyz"] },
  },
  blockExplorers: {
    default: {
      name: "monadvision.com",
      url: "https://monadvision.com",
    },
  },
})
ts

wagmi read-only config

Read-only transport example generated from Main.net fields. It does not include account adapters or transaction actions.

import { createConfig, http } from 'wagmi'
import { monadMainnet } from './monad'

export const config = createConfig({
  chains: [monadMainnet],
  transports: {
    [monadMainnet.id]: http("https://rpc.monad.xyz"),
  },
})
ts

ethers read-only provider

Read-only JsonRpcProvider example generated from Main.net fields. It does not create a signer.

import { JsonRpcProvider } from 'ethers'

export const provider = new JsonRpcProvider("https://rpc.monad.xyz", {
  chainId: 143,
  name: "monad",
})

const network = await provider.getNetwork()
console.log(network.chainId)
bash

curl eth_chainId check

Minimal JSON-RPC identity check. This verifies the endpoint-reported chain ID only, not uptime or production suitability.

curl -s -X POST \
  -H 'content-type: application/json' \
  --data '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}' \
  https://rpc.monad.xyz

# Expected chain ID: 143 / 0x8f

Developer signals

External dashboards a developer may inspect before choosing where to deploy. Main.net links to these references but does not collect the metric values, normalize methodologies, rank chains, or recommend deployments.

Safety note

Monad public RPC access can be rate-limited or temporarily unavailable. Verify Monad docs and current endpoint response before deploying production systems.

Main.net is an independent reference site. It does not operate this chain, custody assets, execute transactions, or provide investment advice.

Report a correction

If this page has stale RPC, explorer, chain ID, or source information, open a public correction issue with a source link so it can be checked.

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