Key Highlights
- EtherFi Cash has moved its credit backend to a dedicated Aave V4 instance on OP Mainnet.
- The deployment is designed to support borrowing against a broader range of crypto assets.
- EtherFi says Cash has more than 100,000 active cardholders and over 300,000 accounts.
EtherFi Cash is moving the credit backend behind its crypto card product to a dedicated Aave V4 instance on OP Mainnet, bringing the lending protocol’s latest version into the product’s existing infrastructure.
According to an announcement on Thursday, the deployment is now live on OP Mainnet. The change affects the lending system that supports Cash, while the card product itself continues operating without interruption.
EtherFi shifts lending backend to Aave V4
EtherFi Cash previously relied on an in-house system for its credit infrastructure. Under the new setup, lending activity will run through a dedicated Aave V4 deployment on OP Mainnet.
Aave V4 uses a Hub-and-Spoke design in which shared liquidity can support separate lending markets with their own collateral and risk parameters. For EtherFi, the setup is intended to support borrowing against different digital assets through the Cash product.
Aave founder Stani Kulechov said the V4 deployment allows EtherFi to configure its lending market and risk parameters while using Aave’s lending infrastructure. He added, “Aave V4 provides foundational lending infrastructure tailored for ether.fi’s product and user base.”
Lending capacity targeted at $500 million
The migration comes as EtherFi continues expanding Cash. EtherFi said the product has more than 100,000 active cardholders and over 300,000 accounts. The company said its current lending capacity is in the tens of millions of dollars and that it is targeting capacity of up to $500 million.
EtherFi CEO Mike Silagadze said, “Aave and Optimism are the right partners to help us scale from tens of millions to half a billion dollars in lending capacity.”
The $500 million figure is a target for future capacity, rather than an amount currently deployed through the new Aave market.
Aave V4 expands to more networks
The EtherFi deployment is the latest use of Aave V4 after the protocol began rolling out the new system across different networks. Aave launched V4 on Ethereum in March and deployed the first V4 instance outside Ethereum on Avalanche in July. The Avalanche deployment introduced separate markets with different collateral and risk configurations.
Aave also introduced a Global Dollar Hub for USDG-related lending markets in July, adding another configuration to the V4 framework.
The EtherFi deployment differs from those general-purpose markets because it is being used as dedicated lending infrastructure for an existing consumer product.
What the change means for Cash
For Cash users, the main change is behind the product rather than in how the card itself works. EtherFi said users will continue using Cash normally, while the credit operations supporting the product are handled through the new Aave V4 deployment.
The move also gives EtherFi access to V4’s modular market structure, where different assets can be supported under separate risk settings.
The specific collateral assets, borrowing limits, and risk parameters available to Cash users will determine how much of the planned lending capacity can ultimately be used.
Aave V4 gains another use case
The EtherFi deployment gives Aave V4 another use case outside its standalone lending interface. Aave has been rolling out V4 across different networks and market configurations, while protocols and applications can use the architecture for more specialized lending arrangements.
For EtherFi, the change is primarily a backend migration. For Aave, it adds another application using V4 to provide borrowing infrastructure directly within a consumer-facing crypto product.
With the deployment now live on OP Mainnet, the next stage will be whether EtherFi can expand its lending capacity and which assets and risk parameters it ultimately supports through the dedicated V4 market.
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