L2 (Layer 2 Network)

Layer 2 networks — particularly Coinbase’s Base, Arbitrum, and zkSync — process more stablecoin transaction volume than any individual L1. Base alone handles billions in monthly USDC volume with sub-cent transaction costs. L2s are the primary execution environment for x402 payments, DeFi stablecoin activity, and Robinhood Chain’s tokenized equities testnet (Arbitrum-based).