OKX, a leading global virtual asset exchange and Web3 technology company, has officially launched the X Layer Public Mainnet. X Layer is an Ethereum Layer-2 (L2) network built with Zero-Knowledge (ZK) technology, designed using the Polygon CDK (Chain Development Kit) and connected via AggLayer for shared liquidity and unified state across multiple chains.
This infrastructure combines innovation with security, offering users faster and cheaper transactions while maintaining strong cryptographic guarantees. X Layer is also Ethereum Virtual Machine (EVM) compatible, allowing developers to seamlessly deploy existing Ethereum dApps with minimal adjustments.
What Is X Layer?
X Layer is a ZK-powered Ethereum Layer-2 scaling solution developed by OKX. It aims to solve common blockchain challenges such as high gas fees, slow transaction speeds, and limited scalability—all while preserving the decentralization and security expected from Ethereum-based networks.
By leveraging advanced ZK-proof technology, X Layer ensures that transactions remain secure and private. Its integration with AggLayer allows it to share liquidity with other chains in the Polygon ecosystem, creating a more interconnected and efficient multi-chain environment.
Key Features and Benefits
Enhanced Scalability and Lower Costs
One of the primary advantages of using X Layer is its ability to process transactions off-chain before bundling and verifying them on Ethereum. This significantly reduces congestion and gas fees, making it economical for everyday users and developers alike.
EVM Compatibility
X Layer supports the Ethereum Virtual Machine, meaning developers can port their smart contracts and dApps from Ethereum with little to no modification. This lowers the barrier to entry and encourages rapid ecosystem growth.
Strong Security Model
Thanks to Zero-Knowledge proofs, X Layer does not compromise on security. ZK-rollups cryptographically validate transactions without revealing underlying data, offering both privacy and integrity.
Seamless Interoperability
Through AggLayer, X Layer is connected to a growing family of L2 chains. Users can move assets and interact with dApps across different networks without dealing with fragmented liquidity or complex bridging processes.
Leadership Perspectives
Haider Rafique, Chief Marketing Officer at OKX, commented:
“X Layer is built for visionary developers creating applications that can bring millions of users on-chain. We see X Layer and other L2s as the infrastructure highways of Web3, where dApps act as marketplaces and self-custody wallets are the vehicles. We’re building a seamless and interoperable ecosystem—and with our strong community and Ethereum connectivity, X Layer has limitless potential.”
Marc Boiron, CEO of Polygon Labs, added:
“X Layer marks a milestone in building a unified Web3. Its connection to AggLayer solves liquidity fragmentation across chains, enabling shared growth. OKX’s 50 million users can now effortlessly access X Layer and other connected chains. The impressive lineup of developers building on X Layer is a testament to its potential.”
Growing Ecosystem and Adoption
Since its testnet launch in November 2023, X Layer has seen rapid adoption. Within the first week, more than 50 dApps were deployed on the testnet. Well-known projects such as QuickSwap, LayerZero, Galxe, The Graph, and Curve are already being integrated.
Today, users can transfer assets, store funds, trade, and stake using over 170 dApps available on X Layer. With the public mainnet now live, this number is expected to grow exponentially.
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The Role of OKB and OKX Wallet
OKB, OKX’s native utility token, serves as the gas token on X Layer, meaning users can pay transaction fees using OKB. The OKX Web3 Wallet—a self-custody solution supporting over 90 blockchains—will be a primary gateway for users accessing X Layer and its dApps.
OKX is one of the world’s largest crypto exchanges by trading volume, with over $22 billion in assets under management and more than 50 million global users. This existing user base provides X Layer with significant initial traction and liquidity.
Powered by Polygon CDK and AggLayer
X Layer is built using Polygon’s Chain Development Kit (CDK), a modular open-source toolkit enabling developers to launch ZK-powered L2s on Ethereum. OKX developers will also contribute to the CDK, helping drive further innovation.
Moreover, X Layer is interconnected with other CDK-based chains via AggLayer—a decentralized protocol that unifies liquidity and state across multiple blockchains, creating a seamless user experience similar to using a single network.
Frequently Asked Questions
What is X Layer?
X Layer is an Ethereum Layer-2 network developed by OKX using ZK-rollup technology. It offers faster and cheaper transactions while maintaining high security and full EVM compatibility.
How is X Layer different from other L2s?
X Layer stands out due to its integration with AggLayer, which enables shared liquidity with other chains. It also benefits from OKX's large user base and existing Web3 infrastructure, including the OKX Wallet.
Do I need OKB to use X Layer?
Yes, OKB is used to pay for gas fees on the X Layer network. Users can acquire OKB through the OKX exchange or other supported platforms.
Can I use my existing Ethereum wallet?
Yes, any EVM-compatible wallet—including MetaMask, Trust Wallet, and the OKX Web3 Wallet—can be used to interact with X Layer.
What kind of dApps are available on X Layer?
The network already supports DeFi protocols, NFT marketplaces, gaming platforms, and infrastructure tools. More dApps are expected to launch following the public mainnet release.
Is X Layer secure?
Yes. X Layer uses zero-knowledge proofs for transaction validation, ensuring both scalability and data integrity. It also inherits security from the Ethereum mainnet.
X Layer represents a major step toward mass adoption of decentralized applications by combining user-friendly infrastructure with robust technology. With strong backing from OKX and integration within the Polygon ecosystem, it is well-positioned to become a key player in the L2 landscape.