Chain profile

Monad chain ID 143 and mainnet RPC URL

Reviewed Source monitor Jun 10, 2026

Source links checked June 10, 2026. Monad is an EVM-compatible L1. Monad documentation lists mainnet network information, supported public RPC providers, explorers, and wallet setup guidance.

Chain ID 143 / 0x8f
RPC URL https://rpc.monad.xyz
Explorer https://monadvision.com
Gas token MON
Verification Verified metadata
Manual review June 10, 2026
Source monitor

Verification record

Manual metadata review and automated evidence checks are tracked separately. This is not a live uptime, latency, or production reliability monitor.

Manual metadata review
Verification status
Verified metadata
Verification run
source-monitoring-2026-06-10
Verification tool
source-monitoring-refresh
Source set
Monad docs
Manual review cadence
monthly; after July 10, 2026
Latest recorded chain ID probe
eth_chainId matched expected 0x8f ; observed 0x8f on

Methodology Report a correction

Monitoring evidence

These checks are review signals only. They are not uptime, latency, privacy, or production reliability claims.

Snapshot generated
Source checks
3 sources checked
Source changes
2 records since the previous committed source hash artifact
Source fetch failures
0
eth_chainId probe
matched expected 0x8f
Last source check

View monitoring snapshots or source 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
Manual review cadence
monthly; next review after July 10, 2026

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 decimal 143
Chain ID hex 0x8f
RPC URL https://rpc.monad.xyz
Explorer URL https://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 reviewed 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 reviewed 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 reviewed 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 reviewed 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 is rate-limited. Use official docs and dedicated provider endpoints 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 the dataset can be reviewed.

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