Jinse Finance reported that Cobo co-founder and CEO Shenyu released a long infographic on September 17 introducing x402, AP2, and ERC-8004, with the accompanying text: When AI learns to spend money: from x402 to AP2, then to ERC-8004, exploring how to make Agents become true economic entities. According to the infographic, AP2 and x402 are payment and settlement infrastructures, ERC-8004 is an on-chain AI Agent registry, and the combination of the three represents "the first time the crypto industry has a complete technology stack enabling machines to become economic entities."