DBHub, Minimal Database MCP Server

DBHub is a zero-dependency server that implements the Model Context Protocol (MCP) server interface, designed to act as a lightweight gateway between MCP-compatible clients and multiple types of databases. It enables AI coding assistants and other clients to connect to and explore databases such as PostgreSQL, MySQL, MariaDB, SQL Server, and SQLite through a single interface. The platform emphasizes token efficiency and is suitable for local development environments.

Key features of DBHub include support for multiple simultaneous database connections configured via TOML, and several built-in tools accessible to AI assistants. These tools allow for executing SQL queries with transaction support and safety controls, searching and exploring database schemas, tables, columns, indexes, and procedures, as well as defining custom, reusable, parameterized SQL operations. The tool also offers guardrails such as read-only mode, row limiting, and query timeouts to help prevent unintended or runaway operations. Security features include support for SSH tunneling and SSL/TLS encryption.

DBHub provides a web-based Workbench interface that allows users to run database tools and view request traces directly from a browser, without the need for an MCP client. For installation, the platform can be set up using Docker, NPM, or pre-built binaries, making it accessible across different development setups.

By serving as a bridge between AI agents and databases, DBHub streamlines database exploration and management for developers and AI coding assistants, focusing on simplicity, efficiency, and secure access.