MetaMask, Linea, and Brevis have come together to introduce a groundbreaking rewards program for MetaMask Card users. The program, announced on August 13, 2025, offers eligible users a 2.4% APR boost on Aave’s Linea market for lending or borrowing USD Coin (USDC), along with cashback rewards.
To participate in the program, users must complete at least one transaction with the MetaMask Card. Rewards are calculated every four hours and can be claimed through Incentra, Brevis’s on-chain rewards platform, without the need for additional sign-ups or liquidity operations.
The innovative aspect of this rewards program lies in the use of zero-knowledge proofs by Brevis. These proofs ensure transparent and trustless verification of rewards by directly accessing information from Aave’s smart contracts. This eliminates the need for manual verification or centralized databases, allowing users to independently verify the accuracy of their rewards.
This initiative is seen as a blueprint for transparent web3 incentives, addressing issues such as opaque tracking and high participation barriers. By leveraging ZK proofs, the rewards process becomes completely trustless and transparent. Every four hours, Brevis calculates a user’s collateral and debt, generates a proof of eligibility and reward calculation, and submits it to Linea’s smart contract for on-chain verification.
In addition to the APR boost, MetaMask Card users can earn cashback in USDC on purchases, as well as up to 10% back in “Coinmunity” rewards, tokens, NFTs, or other digital assets issued by participating brands on Linea.
The launch of this rewards program has sparked speculation within the community about MetaMask’s future product roadmap. Rumors suggest the possible launch of a MetaMask-branded stablecoin, mUSD or mmUSD, in the near future. There have also been discussions about a native token, MASK, although MetaMask’s parent company, ConsenSys, has denied the existence of such a token at present.
For now, the focus remains on leveraging layer-2 scalability and ZK proofs to make on-chain rewards seamless and transparent, while maintaining the core principles of DeFi. The collaboration between MetaMask, Linea, and Brevis sets a new standard for verifiable incentives in the crypto space, paving the way for more innovative and transparent reward programs in the future.