optimism Testnet
OP Sepolia Testnet
Optimism testnet on Sepolia
Network Configuration
Network Name
OP Sepolia
Chain ID
11155420
RPC URL
https://sepolia.optimism.io
Get Free Testnet Tokens
Block Explorer
https://sepolia-optimism.etherscan.ioBuild on Optimism
Fast, stable Ethereum L2 powering the Superchain ecosystem
Learn more about Optimism development →Deploy to OP Sepolia with Cheetah AI
One-click deployment to OP Sepolia testnet from your IDE
Get Started Free