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mcp-database-server

MCP.Pizza Chef: executeautomation

The MCP Database Server is a versatile MCP server that provides structured, real-time access to SQLite, SQL Server, and PostgreSQL databases. It enables LLMs like Claude to query and interact with these databases seamlessly, supporting both direct global installation and local development setups. This server facilitates database-driven workflows by exposing SQL data and operations through the MCP protocol.

Use This MCP server To

Query SQLite, SQL Server, and PostgreSQL databases via MCP Enable LLMs to fetch and manipulate database records in real time Integrate database querying into AI-enhanced workflows Support multi-database environments with a single MCP server Develop custom database-driven applications with LLM context Run SQL commands and retrieve results through MCP clients

README

MCP Database Server

This MCP (Model Context Protocol) server provides database access capabilities to Claude, supporting SQLite, SQL Server, and PostgreSQL databases.

Installation

  1. Clone the repository:
git clone https://github.com/executeautomation/database-server.git
cd database-server
  1. Install dependencies:
npm install
  1. Build the project:
npm run build

Usage Options

There are two ways to use this MCP server with Claude:

  1. Direct usage: Install the package globally and use it directly
  2. Local development: Run from your local development environment

Direct Usage with NPM Package

The easiest way to use this MCP server is by installing it globally:

npm install -g @executeautomation/database-server

This allows you to use the server directly without building it locally.

Local Development Setup

If you want to modify the code or run from your local environment:

  1. Clone and build the repository as shown in the Installation section
  2. Run the server using the commands in the Usage section below

Usage

SQLite Database

To use with an SQLite database:

node dist/src/index.js /path/to/your/database.db

SQL Server Database

To use with a SQL Server database:

node dist/src/index.js --sqlserver --server <server-name> --database <database-name> [--user <username> --password <password>]

Required parameters:

  • --server: SQL Server host name or IP address
  • --database: Name of the database

Optional parameters:

  • --user: Username for SQL Server authentication (if not provided, Windows Authentication will be used)
  • --password: Password for SQL Server authentication
  • --port: Port number (default: 1433)

PostgreSQL Database

To use with a PostgreSQL database:

node dist/src/index.js --postgresql --host <host-name> --database <database-name> [--user <username> --password <password>]

Required parameters:

  • --host: PostgreSQL host name or IP address
  • --database: Name of the database

Optional parameters:

  • --user: Username for PostgreSQL authentication
  • --password: Password for PostgreSQL authentication
  • --port: Port number (default: 5432)
  • --ssl: Enable SSL connection (true/false)
  • --connection-timeout: Connection timeout in milliseconds (default: 30000)

Configuring Claude Desktop

Direct Usage Configuration

If you installed the package globally, configure Claude Desktop with:

{
  "mcpServers": {
    "sqlite": {
      "command": "npx",
      "args": [
        "-y",
        "@executeautomation/database-server",
        "/path/to/your/database.db"
      ]
    },
    "sqlserver": {
      "command": "npx",
      "args": [
        "-y",
        "@executeautomation/database-server",
        "--sqlserver",
        "--server", "your-server-name",
        "--database", "your-database-name",
        "--user", "your-username",
        "--password", "your-password"
      ]
    },
    "postgresql": {
      "command": "npx",
      "args": [
        "-y",
        "@executeautomation/database-server",
        "--postgresql",
        "--host", "your-host-name",
        "--database", "your-database-name",
        "--user", "your-username",
        "--password", "your-password"
      ]
    }
  }
}

Local Development Configuration

For local development, configure Claude Desktop to use your locally built version:

{
  "mcpServers": {
    "sqlite": {
      "command": "node",
      "args": [
        "/absolute/path/to/mcp-database-server/dist/src/index.js", 
        "/path/to/your/database.db"
      ]
    },
    "sqlserver": {
      "command": "node",
      "args": [
        "/absolute/path/to/mcp-database-server/dist/src/index.js",
        "--sqlserver",
        "--server", "your-server-name",
        "--database", "your-database-name",
        "--user", "your-username",
        "--password", "your-password"
      ]
    },
    "postgresql": {
      "command": "node",
      "args": [
        "/absolute/path/to/mcp-database-server/dist/src/index.js",
        "--postgresql",
        "--host", "your-host-name",
        "--database", "your-database-name",
        "--user", "your-username",
        "--password", "your-password"
      ]
    }
  }
}

The Claude Desktop configuration file is typically located at:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
  • Linux: ~/.config/Claude/claude_desktop_config.json

Available Database Tools

The MCP Database Server provides the following tools that Claude can use:

Tool Description Required Parameters
read_query Execute SELECT queries to read data query: SQL SELECT statement
write_query Execute INSERT, UPDATE, or DELETE queries query: SQL modification statement
create_table Create new tables in the database query: CREATE TABLE statement
alter_table Modify existing table schema query: ALTER TABLE statement
drop_table Remove a table from the database table_name: Name of table
confirm: Safety flag (must be true)
list_tables Get a list of all tables None
describe_table View schema information for a table table_name: Name of table
export_query Export query results as CSV/JSON query: SQL SELECT statement
format: "csv" or "json"
append_insight Add a business insight to memo insight: Text of insight
list_insights List all business insights None

For practical examples of how to use these tools with Claude, see Usage Examples.

Additional Documentation

  • SQL Server Setup Guide: Details on connecting to SQL Server databases
  • PostgreSQL Setup Guide: Details on connecting to PostgreSQL databases
  • Usage Examples: Example queries and commands to use with Claude

Development

To run the server in development mode:

npm run dev

To watch for changes during development:

npm run watch

Requirements

  • Node.js 18+
  • For SQL Server connectivity: SQL Server 2012 or later
  • For PostgreSQL connectivity: PostgreSQL 9.5 or later

License

MIT

mcp-database-server FAQ

How do I install the MCP Database Server?
You can install it globally via npm with 'npm install -g @executeautomation/database-server' or clone and build it locally from GitHub.
Which databases does the MCP Database Server support?
It supports SQLite, SQL Server, and PostgreSQL databases.
Can I use this MCP server with LLMs other than Claude?
Yes, while optimized for Claude, it can work with any MCP-compatible LLM like OpenAI's GPT-4 or Anthropic's Claude.
Is local development supported for customization?
Yes, you can clone the repository, install dependencies, and build the project locally for development.
How does the MCP Database Server expose database data?
It maps database tables and queries into structured, model-readable context via the MCP protocol.
Can I run SQL queries directly through this MCP server?
Yes, it allows running SQL commands and retrieving results in real time.
What are the prerequisites for running the MCP Database Server?
You need Node.js installed and access to the target databases (SQLite, SQL Server, or PostgreSQL).
Does the server support secure database connections?
Security depends on your database configuration; the server supports standard connection methods.