layer-2s
Installation
SKILL.md
Layer 2s
The current L2 landscape as of early 2026. Which chain, when, and why. This skill focuses on practical decisions, not theory.
What You Probably Got Wrong
The dominant DEX is NOT Uniswap on every L2. This is the most common mistake agents make. Uniswap has deployments everywhere, but it does not have the deepest liquidity on every L2.
| Chain | Dominant DEX | Runner-up |
|---|---|---|
| Ethereum L1 | Uniswap V3 | Curve |
| Arbitrum | Camelot | Uniswap V3 |
| Optimism | Velodrome | Uniswap V3 |
| Base | Aerodrome | Uniswap V3 |
| zkSync Era | SyncSwap | Maverick |
| Scroll | Ambient (CrocSwap) | Uniswap V3 |
| Linea | Nile | SyncSwap |
If you are building a swap integration, route through the dominant DEX for that chain, not Uniswap.