How does your tool help you earn money from other AI? I tried the x402 MCP package that Coinbase sent yesterday, and it may be a potential path to make money in the future. I think anyone who likes to develop their own AI gadgets can pay attention to it. Previously, x402 was used for API endpoints. If you create an API, the AI agent will automatically pay on a per call basis when calling it. Now they have released an MCP software package with the same logic, but aimed at MCP tool developers. You have written an MCP tool, and after installing this package, any AI agent will automatically pay you USDC every time it calls it, without the need for an account or invoice. AI will charge you once for each call. This time, we also upgraded a few places: The supported tokens have expanded from USDC to all ERC-20 tokens, including EURC and various meme coins, accepting any on chain payment through EIP-3009/Permit2. Add Sign in with Wallet, allowing buyers to access paid content by logging in with their wallet. The significance for developers is that the tool you write itself becomes an automatically profitable asset. It's either promotion or subscription, or AI uses your tools and you automatically receive payment. The installation path is on the official website, and I have placed the link in the comments section ⬇️