DBHub is a universal Database Model Context Protocol (MCP) server that acts as a gateway between MCP-compatible clients and diverse databases. It implements the MCP server interface, allowing clients to discover, inspect, and operate across multiple backends through a single connection point. DBHub supports PostgreSQL, MySQL, SQL Server, MariaDB, and SQLite, providing a consistent view of schemas, tables, indexes, and procedures. The MCP Components deliver core capabilities: Resources for database schema exploration (schemas, tables, indexes, procedures), Tools for executing SQL with transaction support, and Prompts for AI-assisted SQL generation and database explanations. The project also highlights a Multi-Database Setup, allowing simultaneous connections to multiple databases via TOML configuration files, simplifying management of production, staging, and development environments. Deployment is straightforward via Docker or NPM, with demo mode and configurable server options. As a gateway, DBHub pairs MCP clients (for example Claude Desktop, Cursor, and VS Code) with multiple databases, exposing them through a unified, queryable MCP interface.