How to Connect Real-Time Stock Data to Your AI Agent (MCP Tutorial)

Most AI agents sound impressive until you ask for something that depends on the present moment: "What's Apple trading at right now?" "Show me the latest fundamentals for Microsoft." "Which stocks are moving today?" That's when the weakness appears. A model can be eloquent, persuasive, and fast. But without access to external tools and live data, it is still reasoning in a closed room. Claude's tool use lets it request external functions that your application executes, and MCP is an open sta...