OP Mainnet
OP Mainnet is a low-cost and lightning-fast Ethereum L2 blockchain.

What is OP Mainnet?
Founded in 2019, OP Mainnet is an L2 blockchain built by Ethereum developers that processes its transactions in batches using optimistic rollups. Users gain access to cheap and near instantaneous transactions are cheap and nearly instantaneous. Developers can use OP Mainnet as a fast, stable, scalable and secure solution to programs requiring Ethereum apps.
Web3 dapps and developer tools related to OP Mainnet
Discover blockchain applications that are frequently used with OP Mainnet.
Developer resources from Alchemy

Integrations, integrations, integrations!
Explore our new marketplace featuring trusted services and tools, giving you full control over your rollup’s customization.

Who are the top blockchain service providers?
Looking for service providers that make building onchain easy? Meet the top players here.

Sei Network: bringing high throughput decentralized blockspace to millions of developers
Alchemy now supports Sei Network, bringing our reliable infrastructure to this high-performance blockchain. Together, we're empowering builders with parallel transaction processing that delivers 50x more computational power than existing EVM chains.
OP Mainnet Alternatives
Explore web3 competitors and apps like OP Mainnet.

