frxUSD
FraxZero Overview

FraxZero Overview

FraxZero is Frax's cross-chain infrastructure that enables seamless asset movement and liquidity. Built on a robust hub-and-spoke architecture, FraxZero provides users with flexibility to interact with frxUSD and other Frax assets across 20+ blockchain networks.

Core Architecture

Hub and Spoke Model

FraxZero operates on a hub-and-spoke architecture where Fraxtal, Frax's native L1 EVM chain, serves as the central hub for all cross-chain operations. This design ensures:

  • Centralized Liquidity Management: All bridged assets are routed through the Fraxtal Hub
  • Efficient Asset Routing: Optimized paths between any supported chain for 1:1 cross-chain transfers
  • Unified Security Model: Consistent security standards across all connected networks

Multi-Chain Asset Support

FraxZero supports 6 Frax assets across 20+ blockchain networks, including:

  • frxUSD - Frax's stablecoin
  • sfrxUSD - Frax's yield-bearing stablecoin
  • WFRAX - Frax's wrapped governance token
  • frxETH - Frax's liquid staking derivative
  • sfrxETH - Frax's staked liquid staking derivative
  • FPI - Frax's price index stablecoin

Key Features

Dual Lockbox System

FraxZero implements a dual lockbox mechanism that:

  • Unlocks Native Liquidity: Provides access to native Frax assets on multiple chains
  • Enhanced Security: Multiple security layers protect user assets during cross-chain transfers
  • Instant Availability: Assets are immediately available as native tokens on destination chains

Flexible Security Model

The platform features a 3 of 3 Data Validation Network (DVN) requirement that includes:

  • Frax Team-Run DVN: Direct oversight from Frax's security team
  • Multi-Party Validation: Distributed security across multiple validation networks
  • Configurable Requirements: Adaptable security parameters based on asset type and transfer size

Cross-Chain Asset Swapping

FraxZero enables seamless asset swapping across chains with:

  • Fraxtal Liquidity Access: Users can access Fraxtal's deep liquidity from any supported chain
  • No Chain Hopping Required: Complete transactions without leaving the source network

Benefits for Users

For Traders

  • Liquidity Access: Tap into Fraxtal's deep liquidity from any supported chain
  • 1:1 Transfers: Transfers between chains are always 1:1
  • Faster Execution: Transfers are faster than traditional cross-chain transfers such as Circle's CCTP

For Developers

  • Simplified Integration: Easy-to-use APIs for cross-chain operations
  • Consistent Experience: Uniform interface across all supported networks
  • Security Assurance: Built-in security features reduce integration complexity

For Liquidity Providers

  • Cross-Chain Yield: Earn rewards across multiple networks
  • Risk Distribution: Spread liquidity across multiple chains
  • Enhanced Capital Efficiency: Optimize asset utilization across the ecosystem

Supported Networks

FraxZero currently supports 20+ blockchain networks, providing comprehensive coverage across:

  • Ethereum Mainnet and EVM Layer 2 solutions
  • Alternative Layer 1s including Solana
  • Frax-Native Networks like Fraxtal

What's next

To begin using FraxZero, check out our FraxZero Contracts and follow our quickstarts:


FraxZero represents the future of cross-chain finance, bringing seamless asset movement and unified liquidity access to the entire Frax ecosystem.