MetaMask, Linea, and Brevis Unveil ZK-Based Rewards for Cardholders

MetaMask has partnered with Ethereum layer-2 network Linea and zero-knowledge infrastructure provider Brevis to launch a new rewards initiative for MetaMask Card users — one that’s fully verifiable and trustless thanks to ZK-proof technology.

🟣 Program Highlights Announced on August 13, 2025, the campaign offers eligible cardholders a 2.4% fixed APR boost when lending or borrowing USDC on Aave’s Linea market. On top of that, users can earn cashback and exclusive “Coinmunity” rewards, including tokens, NFTs, and digital assets from participating brands.

🟣 How It Works To qualify, users need to complete just one transaction with their MetaMask Card. Brevis then calculates rewards every four hours using zero-knowledge proofs that pull data directly from Aave’s smart contracts. These proofs are submitted to Linea’s smart contract for on-chain verification — no manual checks, no centralized databases, just pure transparency.

🟣 Reward Mechanics The APR boost applies to a combined cap of 5,000 USDC in collateral and debt. Rewards are distributed via Incentra, Brevis’s on-chain platform, without requiring extra sign-ups or liquidity moves.

🟣 Why It Matters This initiative tackles long-standing issues in Web3 incentive systems — like opaque tracking and high entry barriers. By integrating ZK technology, MetaMask and its partners are setting a new standard for transparent, permissionless rewards.

🟣 Speculation Around MetaMask’s Next Move The launch comes amid growing rumors about a MetaMask-branded stablecoin — possibly named mUSD or mmUSD — expected later this month. Whispers about a native MASK token persist, though ConsenSys continues to deny any such plans.

For now, the focus is clear: leverage layer-2 scalability and zero-knowledge infrastructure to deliver seamless, verifiable rewards that rival traditional finance perks — all while staying true to the composability and openness of DeFi.