X Layer Tier-1 Support

Dfns now supports X Layer with full Tier 1 integration, including mainnet and testnet environments. This integration brings X Layer into the Dfns platform as a fully operational environment for institutions and developers building payments applications, DeFi protocols, and real-world asset platforms on OKX's high-performance Ethereum Layer 2.

What is X Layer?

X Layer is an Ethereum Layer 2 network built by OKX on an enhanced Optimism Stack, designed to give developers a superior environment for scaling onchain applications with full EVM equivalence, near-zero gas fees, and the security guarantees of Ethereum underneath.

It is the primary blockchain infrastructure for the OKX ecosystem, one of the world's largest crypto platforms with over 50 million users and billions in assets. X Layer consolidates OKX's onchain activity into a single, high-performance settlement network, replacing the earlier OKTChain and positioning OKB as the unified gas and utility token across the entire ecosystem.

Key technical characteristics include:

• Full EVM equivalence: deploy existing Ethereum applications without code modifications
• Up to 5,000 TPS: high throughput capacity following the August 2025 PP upgrade, which integrated the latest Polygon CDK technology and overhauled the network's performance profile
• Near-zero gas fees: sub-cent transaction costs optimized for high-frequency operations
• Optimistic rollup security: inherits Ethereum's security guarantees through battle-tested rollup architecture, with a simpler and more efficient operational model than ZK rollups
• OKB as gas token: OKX's native token with a fixed supply of 21 million post-burns and upgrades
• 99.9% uptime: achieved through the Conductor high-availability cluster, ensuring sequencer redundancy for production-grade applications
• ~2-second block finality: fast settlement suitable for payment and trading use cases

Full Tier 1 support on Dfns

Dfns provides full Tier 1 support for X Layer, giving institutions and developers access to a complete, programmable wallet infrastructure layer:

• Wallet creation: programmatic provisioning via API
• Native transfers: send and receive OKB
• Token transfers: support for ERC-20 tokens, including stablecoins and tokenized assets deployed on X Layer
• Smart contract execution: interact with onchain applications and financial workflows
• Transaction broadcasting: submit transactions to mainnet or testnet
• Secure signing: all operations run through Dfns' distributed MPC infrastructure, with no private key reconstruction at any point
• Balance retrieval: query OKB and token balances across wallets
• Webhook notifications: real-time transaction and balance updates

All operations are secured by Dfns' zero trust architecture, with SOC 2 Type II, ISO 27001, ISO 27017, and ISO 27018 certifications. Dfns operates strictly as a technology provider. Custody remains under the client's own regulatory perimeter and licensing framework.

X Layer's combination of Ethereum compatibility, OKX ecosystem depth, and near-zero cost makes it a strong environment for a range of institutional and developer use cases. Examples include:

• Stablecoin payments and settlement: leverage X Layer's sub-cent fees and fast finality for high-throughput stablecoin payment flows across corridors where OKX has deep liquidity
• Real-world asset tokenization: issue, manage, and transfer tokenized financial assets with compliant wallet infrastructure and granular approval workflows
• DeFi treasury automation: manage OKB and token balances programmatically with policy enforcement, multi-sig approval, and audit trails built in
• Payment infrastructure: build programmable payment rails on X Layer with Dfns handling signing, transaction lifecycle management, and compliance integration end to end
• Cross-chain applications: leverage X Layer's Ethereum settlement and AggLayer interoperability to connect onchain flows across networks from a single Dfns control plane

X Layer joins 60+ blockchain networks supported on Dfns, powering digital asset operations for 400+ institutional clients worldwide.

Get started with X Layer on Dfns today: app.dfns.io