我用 Rust 创建了一个用于 Pix 支付的 CLI，并且它有一个 MCP 服务器供 AI 代理进行支付

Pix is the most successful payment system in Brazil, processing trillions annually and used by over 150 million people, operating 24/7 with instant settlement. However, integrating with Pix presents significant challenges for developers. While the APIs of Payment Service Providers (PSPs) follow the Central Bank's specifications, each provider implements them differently, leading to fragmented documentation. Available SDKs are often bulky, language-specific, and exceed necessary functionality. Configuring mTLS certificates is a manual and error-prone process. Additionally, there is a lack of command-line tools for testing charges and verifying payments. To address these issues, the author has developed a CLI tool in Rust that simplifies the integration process with Pix and includes an MCP server for AI agents to perform payment operations.