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OpenBook

by Solana Community

A community-led decentralized order book exchange on Solana, offering fully on-chain, non-custodial trading with low fees and high-speed execution.

Supported Chains

Solana

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Quick Fact

OpenBook emerged as a successor to Serum after its collapse, driven by Solana developers and traders to preserve trustless, on-chain order book trading.

A Decentralized Order Book Built by the Solana Community

OpenBook is a fully decentralized, open-source order book protocol built on the Solana blockchain. It was created by community contributors in response to the collapse of Serum, with the goal of continuing support for non-custodial, high-performance trading on Solana. Unlike AMMs, OpenBook provides a central limit order book (CLOB) model, enabling more precise trade execution.

Transparent, Permissionless Trading Infrastructure

The platform is fully on-chain, meaning all trades, order placements, and cancellations are recorded transparently. It’s permissionless—anyone can build on top of OpenBook or list tokens. This structure makes it ideal for developers building decentralized exchanges, trading frontends, or DeFi protocols that require deep liquidity and high-speed execution.

Open Ecosystem for Builders and Traders

With OpenBook, the Solana ecosystem retains one of its key infrastructure components: a decentralized order book that is composable, extensible, and community-run. Developers have access to SDKs and APIs to interact with the protocol, while traders benefit from minimal fees, fast confirmations, and full control over their assets.

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