P402

P402 is a payment infrastructure protocol designed for AI agents and programmatic micropayments, leveraging USDC on the Base Layer 2 network. It provides instant, sub-cent transactions, frictionless session payment flows, autonomous agent spending, and on-chain identity and reputation with ERC-8004. Developers can integrate it via TypeScript SDKs and middleware to protect APIs behind standardized paywalls, while users and agents benefit from automatic access control, transparent 1% protocol fees, and real-time analytics dashboards. Ideal for AI agent developers, API providers, and platforms seeking automated, low-cost, and scalable payment systems.