Modern apps use language models, but how do those models safely interoperate with your company’s backend data without putting the business at risk? SQL MCP Server answers that question. It is Microsoft’s open source MCP server for secure access to SQL Server, Azure SQL, PostgreSQL, Cosmos DB, and MySQL, running in the cloud or on premises at enterprise scale. It provides a feature-rich database API designed to help models understand and work with your data while enforcing permissions, policies, and operational boundaries.

Built on the same high-scale engine that powers Microsoft Fabric’s own GraphQL API, SQL MCP Server is designed for both scale and developer productivity. With a rich inner loop and a cross-platform command line, it works just as well for enterprise workloads as it does for engineers innovating on the ground.