FreePeak/db-mcp-server

What it solves

DB MCP Server allows AI assistants to interact with multiple databases simultaneously through a standardized interface. It solves the problem of providing AI models with structured, secure, and multi-engine access to data without requiring custom connectors for every database instance.

How it works

Built on the Model Context Protocol (MCP), the server connects to various database systems and dynamically generates a set of specialized tools for each connection. For example, if a database is named mysql1, the server creates tools like query_mysql1 and schema_mysql1. It supports multiple transport modes, including STDIO for IDE integration (like Cursor) and SSE for network-based communication.

Who it’s for

Developers and AI engineers who want to integrate LLM-powered agents with their existing database infrastructure across different vendors (MySQL, PostgreSQL, SQLite, Oracle, TimescaleDB) while maintaining production-grade security guardrails.

Highlights

• Multi-Database Support: Connect to MySQL, PostgreSQL, SQLite, and Oracle concurrently.
• Production Guardrails: Includes per-database read-only enforcement, result set truncation (max_rows), and regex-based column masking for sensitive data.
• Dynamic Tooling: Automatically generates query, schema, and performance analysis tools for every connected database.
• Performance Insights: Provides tools for analyzing slow queries, suggesting indexes, and validating index suggestions via extensions like hypopg on PostgreSQL.
• Flexible Deployment: Supports Docker, STDIO mode for IDEs, and SSE for remote clients, with API-key authentication for secure access.