Networks and Public RPC Endpoints


# Optimism (mainnet)

Point and deploy

We recently removed our whitelist! This means that anyone can deploy onto Optimism. However, if you want support getting live on Optimism, or if you want some PR hype you can apply here (opens new window).

Parameter Value
Network Name Optimism
Description Mainnet
Chain ID 10
Explorer https://optimistic.etherscan.io
HTTP Endpoint https://mainnet.optimism.io Not for production systems. See the list of available RPC endpoints below
WebSocket Endpoint wss://ws-mainnet.optimism.io
L1 Contract Addresses link (opens new window)
L2 Contract Addresses link (opens new window)
chainid.link https://chainid.link/?network=optimism (opens new window)

# RPC endpoints

Please set up a private RPC endpoint with any of the following providers:

We also support and maintain the following public RPC endpoints. However, we highly encourage you to set up a private RPC endpoint with any of the above mentioned providers instead. These public endpoints should not be used in production systems.

# Optimism Kovan (testnet)

Purpose

This is our test network. To get ETH on Kovan as well as Optimism Kovan, checkout our faucets page.

Parameter Value
Network Name Optimism Kovan
Description Testnet (public)
Chain ID 69
Explorer https://kovan-optimistic.etherscan.io
HTTP Endpoint https://kovan.optimism.io If you are going to be sending a lot of requests please set up your own private RPC endpoint
WebSocket Endpoint wss://ws-kovan.optimism.io If you are going to be sending a lot of requests please set up your own private RPC endpoint
L1 Contract Addresses link (opens new window)
L2 Contract Addresses link (opens new window)
chainid.link https://chainid.link/?network=optimism-kovan (opens new window)

# RPC endpoints

Please set up a private RPC endpoint with any of the following providers:

We also have the following public endpoints. However if you expect to be sending a high volume of requests, please use one of the other available providers above.