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Chain profile

Blast chain ID 81457 and mainnet RPC URL

Reviewed Source monitor Jun 10, 2026

Source links checked June 10, 2026. Blast is an Ethereum L2. Blast documentation lists mainnet RPC endpoint, chain ID 81457, ETH as currency symbol, and Blastscan.

Chain ID 81457 / 0x13e31
RPC URL https://rpc.blast.io
Explorer https://blastscan.io
Gas token ETH
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
Blast docs
Manual review cadence
monthly; after July 10, 2026
Latest recorded chain ID probe
eth_chainId matched expected 0x13e31 ; observed 0x13e31 on

Methodology Report a correction

Glossary Chain ID How wallet and RPC software identify a mainnet network. Glossary RPC endpoint What an RPC URL does and why public endpoints can be rate-limited. Glossary Mainnet The production network context for reviewed chain settings. Gas token ETH gas token Other reviewed mainnet rows that use ETH for gas. Guide Chain ID list Reviewed chain IDs, RPC URLs, explorers, and source links across Main.net.

Monitoring evidence

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

Snapshot generated
Source checks
2 sources checked
Source changes
1 records since the previous committed source hash artifact
Source fetch failures
0
eth_chainId probe
matched expected 0x13e31
Last source check

View monitoring snapshots or source change history.

Network endpoints

Primary public RPC
https://rpc.blast.io
Explorer
https://blastscan.io
Official/source documentation
Blast docs
Chain type
Optimistic L2 mainnet
Chain ID hex
0x13e31
Manual review cadence
monthly; next review after July 10, 2026

Blast common questions

What is the Blast mainnet RPC URL?
Blast's listed primary public RPC URL is https://rpc.blast.io.
What is Blast's chain ID?
Blast's listed chain ID is 81457.
What block explorer does Blast use?
Blast's listed block explorer is https://blastscan.io.
What gas token does Blast use?
Blast's listed gas token is ETH.

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 81457
Chain ID hex 0x13e31
RPC URL https://rpc.blast.io
Explorer URL https://blastscan.io
EIP-3085-shaped JSON

Rendered as text for manual review before use.

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

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 blastMainnet = defineChain({
  id: 81457,
  name: "Blast",
  nativeCurrency: {
    name: "ETH",
    symbol: "ETH",
    decimals: 18,
  },
  rpcUrls: {
    default: { http: ["https://rpc.blast.io"] },
    public: { http: ["https://rpc.blast.io"] },
  },
  blockExplorers: {
    default: {
      name: "blastscan.io",
      url: "https://blastscan.io",
    },
  },
})
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 { blastMainnet } from './blast'

export const config = createConfig({
  chains: [blastMainnet],
  transports: {
    [blastMainnet.id]: http("https://rpc.blast.io"),
  },
})
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.blast.io", {
  chainId: 81457,
  name: "blast",
})

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.blast.io

# Expected chain ID: 81457 / 0x13e31

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.

liquidity DeFiLlama chain page External TVL, stablecoin, volume, fee, and protocol coverage where this chain is covered. risk L2BEAT project page External L2 risk, value secured, activity, data availability, and trust-assumption research where this chain is covered. explorer Blast explorer Explorer-hosted blocks, transactions, contracts, token transfers, and verification tools from the listed explorer.

Source links

Blast network informationBlast status

Safety note

Blast has L2-specific yield and gas-revenue mechanics. Network setup pages should not be treated as financial guidance.

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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