What is the Optimism RPC URL?

OP Mainnet mainnet RPC URL is https://mainnet.optimism.io.

Where can I copy Optimism wallet config?

Use the Main.net status page copy path at /status/op-mainnet/#copy-ready-config. It renders wallet_addEthereumChain JSON from the reviewed chain ID, RPC URL, explorer, and gas token fields.

Where are the Optimism source docs?

OP Mainnet source links are listed on this page and on /status/op-mainnet/. Verify them before using the settings in a wallet, script, or app.

Guide

Copy OP Mainnet chain ID and RPC URL

OP Mainnet mainnet uses chain ID 10 / 0xa, RPC URLhttps://mainnet.optimism.io, explorer https://explorer.optimism.io, and ETH as the gas token. Build generated Jul 20, 2026, 4:21 PM UTC; the source evidence snapshot is labeled July 4, 2026.

Quick settings

Optimism chain ID quick answer

Use 10 / 0xa for OP Mainnet mainnet, with RPC URLhttps://mainnet.optimism.io, explorer https://explorer.optimism.io, and ETH as the gas token. The canonical indexed page for this chain is/status/op-mainnet/, with the copy-ready config at/status/op-mainnet/#copy-ready-config. Verify the fields against the linked source docs before using them in a wallet, script, or app.

Copy OP Mainnet config RPC and explorer Official docs and sources ETH gas token

Good fit when you need:

OP Mainnet chain ID 10 / 0xa for wallet or RPC setup;
the public RPC URL, explorer, gas token, and official/source docs together;
wallet config text without connecting a wallet.

NetworkOP Mainnet

Chain ID10 / 0xa

RPC URLhttps://mainnet.optimism.io

Explorerhttps://explorer.optimism.io

Gas tokenETH

Source snapshotJuly 4, 2026

Source docsOptimism docs

Copy configStatus page config

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: July 4, 2026
Verification status: Verified metadata
Source snapshot run: source-monitoring-2026-07-04
Source snapshot tool: source-monitoring-refresh
Source set: Optimism docs
Latest recorded chain ID probe: eth_chainId matched expected 0xa; observed 0xa on Jul 20, 2026

Methodology Report a correction

OP Mainnet wallet-add fields

Use these manual fields when comparing Main.net with wallet directory entries or source documentation before calling wallet_addEthereumChain.

chainId: 0xa (10)
nativeCurrency: ETH; name ETH, symbol ETH, decimals 18
rpcUrls: https://mainnet.optimism.io
blockExplorerUrls: https://explorer.optimism.io

OP Mainnet mainnet settings

RPC URL: https://mainnet.optimism.io
Explorer: https://explorer.optimism.io
Chain ID: 10
Chain ID hex: 0xa
Currency symbol: ETH
Official/source docs: Optimism docs

OP Mainnet EIP-3085 config JSON

Ready-to-copy wallet_addEthereumChain parameters generated from the fields above. Main.net does not connect wallets or request permissions.

Copy-ready JSON

Review source documentation before using this in an app or wallet flow.

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

Official docs and source links

Main.net links to source documentation for verification. It does not rank RPC providers or make uptime, latency, privacy, or production reliability claims about public endpoints.

Connecting to OP Mainnet OP Stack RPC directory

Setup caution

Optimism labels public RPC URLs as rate-limited. Use them for development or light checks, not production-grade app reliability.

Always verify important details in official documentation before configuring software that may sign transactions. Use the status page copy path for the current reviewed config:/status/op-mainnet/#copy-ready-config.

OP Mainnet chain ID FAQ

What is Optimism chain ID?: OP Mainnet mainnet uses chain ID 10 / 0xa.
What is the Optimism RPC URL?: OP Mainnet mainnet RPC URL is https://mainnet.optimism.io.
Where can I copy Optimism wallet config?: Use the Main.net status page copy path at /status/op-mainnet/#copy-ready-config. It renders wallet_addEthereumChain JSON from the reviewed chain ID, RPC URL, explorer, and gas token fields.
Where are the Optimism source docs?: OP Mainnet source links are listed on this page and on /status/op-mainnet/. Verify them before using the settings in a wallet, script, or app.

Related references

Use these pages to check the same OP Mainnet fields from the status page, chain ID list, and RPC list.

Indexed status pageOP Mainnet statusCanonical chain profile with source links, copy fields, and monitoring evidence.GuideChain ID listReviewed decimal and hex chain IDs across Main.net.GuideMainnet RPC listPublic RPC endpoints, explorers, gas tokens, and source documentation.