Coinbase has unveiled Payments MCP, a new tool enabling AI agents such as Claude, Gemini, and ChatGPT to access on-chain financial tools without the need for API keys. This innovation, powered by the x402 protocol, allows AI to conduct payments, retrieve data, and facilitate tipping. While the tool promises enhanced security features like fraud detection and prevention of front-running, it has sparked a debate over potential risks. Experts caution about vulnerabilities such as prompt injection and compromised transaction credentials. Aaron Ratcliff from Merkle Science highlighted the importance of user awareness and secure transaction handling, while Brian Huang from Glider pointed out that AI wallet applications are still in their infancy, focusing on basic operations like sending and swapping.