Base
Coinbase's Ethereum L2, the highest-user-activity chain in DeFi and second largest L2 by TVL.
Base is an OP Stack rollup operated by Coinbase and part of the Optimism Superchain. It captures roughly half of all L2 DEX volume and hosts consumer-scale apps like Aerodrome, Farcaster's Warpcast, and Morpho-powered Coinbase Loans. Its Coinbase-integrated onramp and low fees make it the retail funnel into DeFi, while depth in Aave, Morpho, and Aerodrome give it institutional-grade lending markets.
- TVL around $10.7–12.8B in April–May 2026 per L2BEAT and DeFiLlama, second only to Arbitrum among L2s.
- OP Stack optimistic rollup on the Optimism Superchain; ~2s block times, sub-cent fees, permissionless fault proofs live.
- Powers Coinbase's onchain USDC lending (built on Morpho), which alone represents over $1.6B in collateral by April 2026.
- Largest L2 by daily active users and roughly half of all L2 DEX volume through 2025–2026 per The Block.
- Base announced migration off the standard OP Stack in Feb 2026 toward a more customized deployment while remaining Superchain-aligned.
Frequently asked questions
Is Base a real Ethereum L2 or a sidechain?
Base is a genuine optimistic rollup built on the OP Stack, with transaction data posted to Ethereum and permissionless fault proofs live. Its sequencer is currently run by Coinbase, which is a centralization vector, but security ultimately settles on Ethereum.
Does Coinbase control Base?
Coinbase operates the sequencer and holds significant influence via the OP Stack Security Council, but Base does not have its own token or on-chain governance. Base is part of the Optimism Collective and contributes revenue back to the OP Collective under the Superchain agreement.
What are the main DeFi venues on Base?
Aave V3 and Morpho for lending, Aerodrome for DEX and gauge-directed liquidity, Uniswap V3/V4, Compound V3, Spark, and Fluid. Base is one of the deepest USDC markets in DeFi thanks to Coinbase's onramp and the Bridged/native USDC integration.