How I Connected 29 Business Data Sources to My AI Agent Through One MCP Endpoint

I spent months building individual API integrations for my AI agent. Stripe API for revenue. Shopify API for orders. Quickbooks for financials. HubSpot for CRM. Then I'd have to maintain all of them. The turning point was discovering MCP (Model Context Protocol). Instead of 29 separate API integrations, I built one MCP endpoint that connects to everything. My Claude Code setup went from "generate plausible SQL" to actually answering "what's our MRR?" and "which customers haven't renewed?" from...