Ethereum, scaled.

The Optimism Foundation rollup #2 Airdrop rewards those who have been instrumental as early adopters and active users interact with Optimism.
Check your eligiblity below

Fast, stable, scalable Ethereum.

OP Mainnet is a fast, stable, and scalable L2 blockchain built by Ethereum developers, for Ethereum developers. Built as a minimal extension to existing Ethereum software, OP Mainnet's EVM-equivalent architecture scales your Ethereum apps without surprises. If it works on Ethereum, it works on OP Mainnet at a fraction of the cost.

OP Mainnet goes Superchain

The Superchain project seeks to maximize interoperability and composability between different chains using the OP Stack, and integrate siloed L2s into a single, cohesive layer.
OP Stack
The modular code powering OP Mainnet and the Superchain.
View docs
The Superchain
Building towards a unified future that doesn’t fracture our ecosystems, our applications, or our ability to work together.
Get in touch

Built for the public good.

OP Mainnet is more than just a blockchain. It's an experiment in sustainable ecosystem funding fueled by protocol revenue. Retroactive Public Goods Funding is simple: you build for the public good, you're eligible to receive a grant. Join us on Discord and help build the future of Ethereum, sustainably.
Join us on Discord
Developer resources
Everything you need to get started building on OP Mainnet, all in one place.