x402 is Coinbase's open payment protocol launched in May 2025. It enables AI agents to instantly pay for resources like data or compute across chains like Solana and Base, fueling the agent economy 1. $SANTA (S.A.N.T.A): Solana-based AI agent swarm project on @virtuals_io enabling cross-chain collaboration via x402 for tasks and value transfer. 2. $HEU (Heurist AI):Base chain token backed by Amber Group, focused on AI agent payments and analytics with strong x402 integration 3. $PING (Ping Observer): Base-based monitoring tool for AI agents, leading x402 volume on Uniswap; proven utility in agent observation 4. $MRDN (Meridian Finance): Base chain x402 payment infra with Microsoft AutoGen integration and EigenLayer partnership
817
8
The content on this page is provided by third parties. Unless otherwise stated, OKX is not the author of the cited article(s) and does not claim any copyright in the materials. The content is provided for informational purposes only and does not represent the views of OKX. It is not intended to be an endorsement of any kind and should not be considered investment advice or a solicitation to buy or sell digital assets. To the extent generative AI is utilized to provide summaries or other information, such AI generated content may be inaccurate or inconsistent. Please read the linked article for more details and information. OKX is not responsible for content hosted on third party sites. Digital asset holdings, including stablecoins and NFTs, involve a high degree of risk and can fluctuate greatly. You should carefully consider whether trading or holding digital assets is suitable for you in light of your financial condition.