MCP Protocol Integration

Model Context Protocol (MCP) is an open standardized protocol for connecting LLMs to external tools, APIs, databases, and services. An MCP server exposes tools (fetch data, execute code, query databases). An MCP client (LLM app) calls those tools. Claude uses MCP to access external systems safely: Claude asks to fetch data, MCP server fetches, Claude receives result. MCP decouples LLM from implementation details: as long as tool is MCP-compliant, any LLM can use it. LLMs are powerful but knowledge-cutoff-limited and can't execute code or access data. MCP solves this: LLMs can call tools to fetch real-time data, query databases, execute code. Companies need LLMs to access internal systems (customer data, knowledge bases, code repos) safely. MCP is the standard for this. Learning MCP positions you to build enterprise LLM integrations (which is becoming table stakes). First-movers building MCP integrations command premium salaries because demand >> supply.