MCP — the Model Context Protocol — has gone from a niche Anthropic spec to something every AI-forward team is talking about. The pitch is simple: instead of writing custom tool integrations for every agent you build, you expose your application's capabilities as an MCP server, and any MCP-compatible client (Claude, Cursor, your own agent) can use them. We have been building MCP servers for client Django applications for a few months now. This post is what we learned — not a hello-world walkth...