Fraxtal is Frax’s Ethereum Layer 2, designed to bring high-performance, low-cost execution to stablecoin and DeFi applications. Built on the OP Stack, Fraxtal inherits Ethereum security while delivering a seamless developer and user experience. Fraxtal is also positioned as the canonical settlement and growth layer for the Frax ecosystem.
Since dTRINITY’s first debut in December 2024, Fraxtal has been its genesis network, where all protocol components are natively deployed.
Users on Fraxtal can earn FXTL Points from the network’s native reward system on top of dT Points from dTRINITY. For more details, please refer to Fraxtal’s documentation.
Katana is an Ethereum Layer 2 developed by Polygon and GSR, designed to scale DeFi-native applications with fast execution, low fees, and deep liquidity. Katana also recycles yield generated from productive bridge collateral back into its ecosystem to stimulate economic activity, creating a self-reinforcing feedback loop similar in spirit to dTRINITY’s subsidy model.
dTRINITY expanded to Katana natively in October 2025, but only with dUSD. Instead of deploying other protocol components independently on Katana, dTRINITY leverages strategic partnerships with Morpho and Yearn to enable subsidized lending markets and composable vaults for dUSD. This light deployment model serves as a testbed for faster, more efficient chain expansions in the future.
Users on Katana can earn KAT Points from the network’s native reward system on top of dT Points from dTRINITY. For more details, please refer to Katana’s documentation.
Ethereum is the world's leading ecosystem for DeFi applications, capturing more than half of all onchain TVL. As the most secure and decentralized, smart contract-enabled blockchain, Ethereum serves as the ultimate settlement layer for high-value transactions and scaling adoption.
dTRINITY expanded to Ethereum mainnet in January 2026 with native deployments of dUSD and sdUSD. Other protocol components, including dLEND, dETH, and dLOOP, will be rolled out gradually over time.
Ethereum has no native reward system. Users may still earn dT Points from dTRINITY.
Other Networks
The protocol is considering expansions to other Ethereum L2 networks like Base and/or Arbitrum within 2026. Potential expansions to Solana and other non-EVM networks may be considered in 2027.
Chain-Isolated Architecture
dTRINITY’s native deployment on each supported network maintains fully chain-isolated reserves and collateral for dUSD, sdUSD, and dLEND. As a result, protocol-issued assets may share similar names across networks, but they are not fungible cross-chain. Each instance of the protocol is technically and economically distinct, supported by its own local infrastructure and capital contributions. By isolating reserves and collateral on each network, dTRINITY intentionally sacrifices cross-chain fungibility and interoperability to contain systemic risk from chain-specific events, preventing localized incidents from spreading contagion to the broader ecosystem.
Cross-Chain Swaps
Cross-chain swaps between non-fungible dTRINITY assets may be facilitated via third-party protocols like CrossCurve, allowing users to move capital between dTRINITY’s chain-isolated ecosystems through an intermediary asset that’s available on both sides (e.g., frxUSD, USDC).
Example flow: Fraxtal dUSD > Swap > Fraxtal frxUSD > Bridge > Ethereum frxUSD > Swap > Ethereum dUSD.
For more details, please refer to CrossCurve’s documentation.