According to ChainCatcher, Coinbase CEO Brian Amstrong published a long article on the X platform, saying that this week at CoinbaseDev, we witnessed the first AI-to-AI crypto transaction. In other words, AI can now pay other AIs with cryptocurrency. In the article, he mentioned: "What did one AI buy from another AI? Token! Not a crypto token, but an AI Token (basically a word from one LLM to another). They use tokens to buy tokens. AI agents can't get bank accounts, but they can get crypto wallets. They can now use USDC on Base to trade with humans, merchants, or other AIs. These transactions are instant, global, and free." In addition, he said, "If it's a company selling services-be prepared to have a shopping cart that supports AI checkout. It turns out that everyone benefits from having access to good financial services, including AI! How big will the AI economy be in the next few years?"