The x402 track in the Solana ecosystem maintained a strong momentum in early 2026, driven by the demand for micro-payments from AI agents, the popularization of autonomous trading mechanisms, and the continuously growing on-chain real transaction volume. Among them, PayAI Network stood out with its leading position in decentralized AI payment solutions, becoming a key player in the field and promoting the deep integration of AI agents with on-chain interactions. This wave reflects the market's urgent need for automated trading infrastructure and cross-chain payment efficiency—Solana's high-speed, low-cost features provide a natural foundation for such applications. Based on data from the past seven days, the on-chain activity and ecosystem enthusiasm of related projects have continued to rise, attracting a large number of developers and capital attention.