x402 Protocol 2025: Revolutionizing AI-API Interactions with Native Internet Micro-Payments and Blockchain Efficiency

The x402 protocol, initiated by Coinbase, transforms HTTP’s 402 status code into an on-chain micro-payment channel. It enables AI agents and APIs to conduct instant, subscription-free value exchanges. While the ecosystem expands rapidly, technical compatibility, regulatory compliance, and governance remain key development bottlenecks. x402 aims to embed “payment as a service” directly into HTTP flows. […]
