dbhub

Overview

DBHub is a lightweight Model Context Protocol server that enables MCP-compatible clients to connect and interact with multiple database systems including PostgreSQL, MySQL, SQL Server, MariaDB, and SQLite. It features a token-efficient design with only two core MCP tools (execute_sql and search_objects) to maximize context windows, along with guardrails like read-only mode, row limiting, and query timeouts to prevent runaway operations. The server also includes a built-in web interface for visual database interaction without requiring an MCP client.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• execute_sql

  Execute SQL queries with transaction support and safety controls

  Try:Show me all users created in the last monthTry:Find the top 10 customers by total revenueTry:Count the number of orders per product category
• search_objects

  Search and explore database schemas, tables, columns, indexes, and procedures

  Try:List all tables in the databaseTry:Show me all columns in the orders tableTry:Find all indexes on the customers table
• custom_tools

  Define reusable, parameterized SQL operations in configuration

  Try:Run my monthly sales reportTry:Execute the customer cleanup processTry:Generate the quarterly analytics summary

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Installation

docker run --rm --init \   --name dbhub \   --publish 8080:8080 \   bytebase/dbhub \   --transport http \   --port 8080 \   --dsn "postgres://user:password@localhost:5432/dbname?sslmode=disable"

npx @bytebase/dbhub@latest --transport http --port 8080 --dsn "postgres://user:password@localhost:5432/dbname?sslmode=disable"

npx @bytebase/dbhub@latest --transport http --port 8080 --demo

{
  "mcpServers": {
    "dbhub": {
      "command": "npx",
      "args": ["@bytebase/dbhub@latest", "--transport", "stdio"]
    }
  }
}

FAQ

Is DBHub truly zero-dependency?

Yes, DBHub has no runtime dependencies, making it lightweight and easy to deploy.

How does DBHub ensure safe SQL execution?

DBHub includes read-only mode, row limiting, and query timeout controls to prevent runaway operations and ensure safe SQL execution.

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