Base Development Complete playbook for building on Base L2 — network setup, smart contracts, wallet auth, payments, developer tool attribution, and framework migrations. Default Stack | Layer | Default | |-------|---------| | Network | Base Mainnet (8453) / Base Sepolia testnet (84532) | | Contracts | Foundry ( + BaseScan verification) | | Wallet auth | Base Account SDK ( ) | | Payments | Base Pay — USDC, gasless, settles in <2s | | Transactions | wagmi + viem | | Attribution | Builder Codes — ERC-8021 via | | RPC (prod) | Dedicated node provider or self-hosted Reth | Safety Guardrails - Neve…