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Chain profile

Cronos EVM chain ID 25 and mainnet RPC URL

Cronos EVM is an Ethereum-compatible mainnet. Cronos documentation lists mainnet chain ID 25 and the public RPC URL evm.cronos.org.

Chain ID 25 / 0x19
Gas token CRO
Verification Verified metadata
Checked April 30, 2026

Verification record

This page is checked against cited public sources. It is not a live uptime, latency, or production reliability monitor.

Last checked
Verification status
Verified metadata
Verification run
manual-static-seed-2026-04-30
Verification tool
manual-source-review
Source set
Cronos docs
Next review
monthly; after May 30, 2026
Latest chain ID probe
eth_chainId matched expected 0x19 ; observed 0x19 at

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 CRO gas token Other reviewed mainnet rows that use CRO 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.

Source checks
2 sources checked
Source changes
0 records since the previous committed source hash artifact
Source fetch failures
0
eth_chainId probe
matched expected 0x19
Last source check

View monitoring snapshots or source change history.

Network endpoints

Primary public RPC
https://evm.cronos.org
Explorer
https://explorer.cronos.org
Source documentation
Cronos docs
Chain type
EVM L1 mainnet
Chain ID hex
0x19
Review cadence
monthly; next review after May 30, 2026

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 25
Chain ID hex 0x19
RPC URL https://evm.cronos.org
Explorer URL https://explorer.cronos.org
EIP-3085-shaped JSON

Rendered as text for manual review before use.

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

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 cronosMainnet = defineChain({
  id: 25,
  name: "Cronos EVM",
  nativeCurrency: {
    name: "CRO",
    symbol: "CRO",
    decimals: 18,
  },
  rpcUrls: {
    default: { http: ["https://evm.cronos.org"] },
    public: { http: ["https://evm.cronos.org"] },
  },
  blockExplorers: {
    default: {
      name: "explorer.cronos.org",
      url: "https://explorer.cronos.org",
    },
  },
})
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 { cronosMainnet } from './cronos'

export const config = createConfig({
  chains: [cronosMainnet],
  transports: {
    [cronosMainnet.id]: http("https://evm.cronos.org"),
  },
})
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://evm.cronos.org", {
  chainId: 25,
  name: "cronos",
})

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://evm.cronos.org

# Expected chain ID: 25 / 0x19

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. explorer Cronos EVM explorer Explorer-hosted blocks, transactions, contracts, token transfers, and verification tools from the listed explorer.

Source links

Cronos network constantsCronos mainnet node docs

Safety note

Cronos public endpoints are convenience references. Production systems should review Cronos node documentation and provider limits before routing traffic.

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.

Report Cronos EVM data