We Built an Open-Source MCP Agent in Go (To Connect Claude with Legacy DBs)

Let’s face it: AI is moving at lightning speed, but enterprise data is not. While everyone is building shiny wrappers around cloud LLMs, a massive chunk of the world's most valuable data is locked away in on-premise, legacy databases. For compliance and security reasons, companies can't just dump their data into the cloud. They are watching the AI revolution from the sidelines. My team of 5 and I saw this massive gap. We needed a way to connect AI assistants like Claude Desktop to aging databases without triggering a panic attack in the IT department. Today, we are introducing the core engine that solves this: CoreMCP . The Problem: Giving LLMs a Key to the Vault Large Language Models need context to be useful. Anthropic's new Model Context Protocol is the perfect standard for this. But how do you give an AI agent access to an on-premise MSSQL server without: Begging the IT department to open inbound firewall ports? Locking up the entire production database with bad AI queries? Acciden