Ether.fi is migrating its unmanaged card and digital cash account product, ether.fi Cash, to OP Mainnet and will migrate approximately 70,000 active cards and 300,000 user accounts to the Optimism infrastructure over the next few months.
This move will transfer the total value of locked users in the millions from Scroll to OP Mainnet under the long-standing OP Enterprise partnership. Optimism positions this move as part of a broader push to establish OP Mainnet as a leading hub for payments and consumer cryptocurrency activity.
Ether.fi Cash allows users to migrate from fiat to cryptocurrencies, earn income through DeFi strategies, pay globally via Visa-enabled cards, and manage assets in a non-custodial wallet.
The product processes approximately 2,000 internal swaps and 28,000 spend transactions per day. According to the Dune Analytics dashboard, which aggregates crypto card data, ether.fi accounts for more than a quarter of the total spend across crypto cards.
An Optimism spokesperson said ether.fi brings one of the fastest growing crypto payment products to OP Mainnet, adding that the app processes $2 million in real-world payment amounts every day while abstracting the complexities of DeFi for end users.
“Our thesis is that companies building products like ether.fi need a strong, secure, and scalable technology stack. That’s the OP stack,” the spokesperson said.
Optimism said OPStack processed 3.6 billion transactions in the second half of 2025, accounting for about 13% of total cryptocurrency activity. The company claims this footprint provides sufficient depth and infrastructure for large-scale payments products.
Optimism said the company has experience managing migrations for large ecosystems including Celo, Lisk and Ronin, and users should expect a seamless transition. As an OP Enterprise customer, ether.fi receives enterprise-grade support, access to shared liquidity, and preferred integration with future upgrades.
Ether.fi’s broader protocol currently has approximately $5.7 billion in total locked up, according to DefiLlama data. This move marks a strategic shift to position OP Mainnet as a liquidity and payments hub for consumer-centric DeFi applications within the Superchain ecosystem.
