According to Coingecko data, the total market capitalization of x402 ecosystem tokens has surpassed $1 billion, reaching $1,158,141,996, a 567.7% increase over the past seven days. Specifically, SKL has a market capitalization of approximately $108 million, BNKR approximately $56.703 million, PAYAI approximately $28.958 million, and PING approximately $26.238 million. x402 is an open protocol that defines an internet-native micropayment channel based on HTTP 402 and stablecoins, allowing automated clients and AI agents to make on-demand payments for APIs, data, and computing fees, thus enabling real-time, low-friction, and intermediary-free transactions.