MetaMask is bringing transparent, verifiable rewards to millions of users through Brevis infrastructure.
What We Built Together
In August 2025, MetaMask, Linea, and Brevis collaborated on a new rewards offering for MetaMask Card users—providing a passive 2.4% fixed APR on USDC lending and borrowing through Aave’s Linea market.
The experience is frictionless. No opt-in process. No extra liquidity operations. Existing positions automatically qualify for rewards calculated every 4 hours and claimable through Incentra.
How it works:
Brevis calculates time-weighted average balances for each eligible user’s collateral and debt positions in Aave’s USDC market on Linea. Every 4 hours, Brevis generates a zero-knowledge proof verifying three things: the address meets eligibility criteria, positions exist during the epoch, and reward amounts are calculated correctly from on-chain Aave data.
This proof gets verified on Incentra’s Linea smart contract, enabling trustless reward claims without centralized services. Every payout is fully transparent and mathematically guaranteed.
Why It Matters
MetaMask shows how Brevis enables sophisticated features at consumer scale. Our technology handles complex time-weighted calculations off-chain, generates cryptographic proofs of accuracy, and smart contracts verify everything on-chain.
This architecture removes the impossible choice between advanced features and decentralization. Users get seamless experiences with complete transparency.
When Field Operations launches November 3rd, you’ll earn Brevis Sparks by interacting with MetaMask and other protocols that leverage Brevis infrastructure. Full details on tasks and Spark allocations drop when Phase 2 goes live.
For now, complete Basic Training and stack Sparks.
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