The OP Stack
The OP Stack is the open-source framework for launching fast, secure, and scalable blockchains.
Powering 50+ chains
The OP Stack
One stack, infinite possibilities.
The OP Stack is a fully open-source, modular framework built for teams launching blockchains. Flexible and configurable, it can be adopted as a whole or integrated layer by layer. Developed in the open by Optimism, it’s strengthened by one of the largest developer communities in crypto - and already proven in production.
Features
Enterprise-grade performance
Sovereignty and Control
Customize every layer of your infrastructure: select your gas token, data provider, transaction ordering policy, and bridge methodology - all without sacrificing security.
Infinite scalability
Designed to handle near-infinite transaction throughput with horizontal scaling, always secured by Ethereum.
Fast and cheap transactions
200 ms block times and sub-cent fees deliver instant, seamless user experiences at scale.
Instant launch, no lock-in
Start your chain today with no contracts or licenses.
Battle-tested infrastructure
Your infrastructure is an accelerator, not a science project. Choose the most widely adopted and configurable infrastructure.
OP Stack Fork
The OP Stack is a fully open-source codebase, free to fork or build with as you see fit.
OP Stack Superchain
Built for Enterprises
Managed Security & Upgrades
Configurable by Default
Increased Resilience
Ecosystem Support
Open-source
Open source, built by the best.
The OP Stack is built by a team of world-class contributors. OP Labs supports innovation and infrastructure across the stack. Building in the open makes the OP Stack transparent, resilient, and battle-tested.
