If you’ve been using ChatGPT, Claude, or LangChain, you know that Large Language Models (LLMs) are completely isolated from the real world. They can't check the weather, read your emails, query your database, or send Slack messages. That is, unless you give them Tools. Connecting AI agents to external APIs is one of the most in-demand skills in AI engineering right now. To make this easier for everyone, I recently launched Agent Tools & MCP Hub, an open-source directory of plug-and-play AI...