# Optimism

Optimism is a Layer-2 scaling solution for Ethereum, aiming to improve transaction throughput and reduce fees by employing optimistic rollups, a technology that enables faster and more cost-effective smart contract execution.

## The Optimism Blockchain

Optimism blockchain, crafted by Ethereum developers for Ethereum developers, stands as a swift, reliable, and scalable Layer 2 blockchain. Functioning as a streamlined augmentation to current Ethereum software, Optimism architecture mirrors the EVM, ensuring seamless scalability for your Ethereum applications. If a feature operates on Ethereum, it seamlessly translates to OP Mainnet, offering the same functionality at a significantly reduced cost.

## Related

[What we support](/what-we-support) · [Node-as-a-Service](/products/node-as-a-service) · [Developer portal](https://developers.cryptoapis.io/)