Base

An Ethereum L2 listed in official x402 seller documentation as a CAIP-2 network for USDC settlement.

What an agent can do: Settle an exact x402 payment where the live 402 names Base.
Payment rail: USDC as advertised by the live 402
Networks: Base
Live?: Documented as live or generally available.
Evidence: x402 seller documentation lists Base mainnet and Base Sepolia as CAIP-2 identifiers.
Last verified: 7 September 2026