MCP — Model Context Protocol

Anthropic's connection standard — lets AI talk to any tool, database, or API through one unified protocol. Often called 'USB-C for AI'.

Agent ↔ Tool communication · The "USB-C for AI" · Adopted by OpenAI, Google DeepMind, Cursor, Replit, SourcegraphMCP Apps (Jan 2026): New extension — tools return interactive UI (dashboards, forms)...