# Dbhub > Zero-dependency, token-efficient database MCP server for Postgres, MySQL, SQL Server, MariaDB, SQLite. - **Type:** MCP server - **Install:** `agentstack add mcp-bytebase-dbhub` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [bytebase](https://agentstack.voostack.com/s/bytebase) - **Installs:** 0 - **Category:** [Databases](https://agentstack.voostack.com/c/databases) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [bytebase](https://github.com/bytebase) - **Source:** https://github.com/bytebase/dbhub - **Website:** https://dbhub.ai ## Install ```sh agentstack add mcp-bytebase-dbhub ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About > [!NOTE] > Brought to you by [Bytebase](https://www.bytebase.com/), open-source database DevSecOps platform. ```bash +------------------+ +--------------+ +------------------+ | | | | | | | | | | | | | Claude Desktop +--->+ +--->+ PostgreSQL | | | | | | | | Claude Code +--->+ +--->+ SQL Server | | | | | | | | Cursor +--->+ DBHub +--->+ SQLite | | | | | | | | VS Code +--->+ +--->+ MySQL | | | | | | | | Copilot CLI +--->+ +--->+ MariaDB | | | | | | | | | | | | | +------------------+ +--------------+ +------------------+ MCP Clients MCP Server Databases ``` DBHub is a zero-dependency, token efficient MCP server implementing the Model Context Protocol (MCP) server interface. This lightweight gateway allows MCP-compatible clients to connect to and explore different databases: - **Local Development First**: Zero dependency, token efficient with just two MCP tools to maximize context window - **Multi-Database**: PostgreSQL, MySQL, MariaDB, SQL Server, and SQLite through a single interface - **Multi-Connection**: Connect to multiple databases simultaneously with TOML configuration - **Guardrails**: Read-only mode, row limiting, and query timeout to prevent runaway operations - **Secure Access**: SSH tunneling and SSL/TLS encryption ## Supported Databases PostgreSQL, MySQL, SQL Server, MariaDB, and SQLite. ## MCP Tools DBHub implements MCP tools for database operations: - **[execute_sql](https://dbhub.ai/tools/execute-sql)**: Execute SQL queries with transaction support and safety controls - **[search_objects](https://dbhub.ai/tools/search-objects)**: Search and explore database schemas, tables, columns, indexes, and procedures with progressive disclosure - **[Custom Tools](https://dbhub.ai/tools/custom-tools)**: Define reusable, parameterized SQL operations in your `dbhub.toml` configuration file ## Workbench DBHub includes a [built-in web interface](https://dbhub.ai/workbench/overview) for interacting with your database tools. It provides a visual way to execute queries, run custom tools, and view request traces without requiring an MCP client. ## Installation See the full [Installation Guide](https://dbhub.ai/installation) for detailed instructions. ### Quick Start **Docker:** ```bash docker run --rm --init \ --name dbhub \ --publish 8080:8080 \ bytebase/dbhub \ --transport http \ --port 8080 \ --dsn "postgres://user:password@localhost:5432/dbname?sslmode=disable" ``` **NPM:** (requires Node.js >= 22.5.0) ```bash npx @bytebase/dbhub@latest --transport http --port 8080 --dsn "postgres://user:password@localhost:5432/dbname?sslmode=disable" ``` **Demo Mode:** ```bash npx @bytebase/dbhub@latest --transport http --port 8080 --demo ``` **Restrict to loopback (recommended for production):** ```bash npx @bytebase/dbhub@latest --transport http --host 127.0.0.1 --port 8080 --demo ``` > The HTTP transport defaults to `--host 0.0.0.0`, exposing DBHub on every network interface. For production, bind to `127.0.0.1` and front DBHub with a reverse proxy (nginx/Caddy) or firewall — DBHub does not authenticate HTTP clients. > > The HTTP transport also has built-in DNS-rebinding protection: it only accepts requests whose `Host` is loopback, this machine's own hostname/IPs, or a name you allow via [`--allowed-hosts`](https://dbhub.ai/config/command-line#allowed-hosts). If a client behind a reverse proxy or custom DNS name gets a `403`, add that hostname with `--allowed-hosts`. See [Command-Line Options](https://dbhub.ai/config/command-line) for all available parameters. ### Multi-Database Setup Connect to multiple databases simultaneously using TOML configuration files. Perfect for managing production, staging, and development databases from a single DBHub instance. See [Multi-Database Configuration](https://dbhub.ai/config/toml) for complete setup instructions. ## Development Requires Node.js >= 22.5.0 (DBHub uses the built-in `node:sqlite` module). ```bash # Install dependencies pnpm install # Run in development mode pnpm dev # Build and run for production pnpm build && pnpm start --transport stdio --dsn "postgres://user:password@localhost:5432/dbname" ``` See [Testing](.claude/skills/testing/SKILL.md) and [Debug](https://dbhub.ai/config/debug). ## Contributors ## Star History ## Source & license This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [bytebase](https://github.com/bytebase) - **Source:** [bytebase/dbhub](https://github.com/bytebase/dbhub) - **License:** MIT - **Homepage:** https://dbhub.ai Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/mcp-bytebase-dbhub - Seller: https://agentstack.voostack.com/s/bytebase - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.