The move is presented as a response to outgrowing in-house credit infrastructure. ether.fi Cash, which launched in partnership with Visa in 2024, now counts 100,000 active cardholders across 300,000 registered accounts, a scale the company says has made bespoke lending architecture necessary rather than optional.
The technical arrangement assigns a specific role to each partner. Aave V4 provides a single lending market capable of accepting a wide range of collateral types held by cardholders: Ethereum derivatives, wrapped Bitcoin, stablecoins, platform tokens and vault receipts. Crucially, Aave V4 issues risk parameters on a per-asset basis within that unified market, which matters when collateral quality varies as widely as it does across a retail crypto user base.
Optimism’s OP Mainnet supplies the execution layer. The rationale is latency and cost: consumer card spending demands near-instant settlement at a price point that is commercially viable for sub-hundred-dollar transactions, conditions that Optimism’s rollup architecture is intended to meet.
Mike Silagadze, founder and chief executive of ether.fi, framed the ambition broadly. “Aave and Optimism are the right partners to help us scale from tens of millions to half a billion dollars in lending capacity. This partnership is about making it possible for anyone holding digital assets to use them like real financial capital, without ever having to sell,” he said.
Dan Roesbery, vice president of global crypto partnerships at Visa, noted that ether.fi Cash was helping bridge on-chain capital with everyday spending, though the statement did not add commercial detail to that claim.
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