SQLite Explorer MCP Server

An MCP server that provides safe, read-only access to SQLite databases through Model Context Protocol (MCP). This server is built with the FastMCP framework, which enables LLMs to explore and query SQLite databases with built-in safety features and query validation.

System Requirements

• Python 3.6+
• SQLite database file (path specified via environment variable)

Dependencies

Install all required dependencies:

# Using pip
pip install -r requirements.txt

Required Packages

• fastmcp: Framework for building Model Context Protocol servers

All dependencies are specified in requirements.txt for easy installation.

Table of Contents

• System Requirements
• Dependencies
• MCP Tools
• Getting Started
• Installation Options
  • Claude Desktop
  • Cline VSCode Plugin
• Safety Features
• Development Documentation
• Environment Variables

MCP Tools

The server exposes the following tools to LLMs:

read_query

Execute a SELECT query on the database with built-in safety validations. Features:

• Query validation and sanitization
• Parameter binding support
• Row limit enforcement
• Results formatted as dictionaries

list_tables

List all available tables in the database with their names.

describe_table

Get detailed schema information for a specific table, including:

• Column names and types
• NULL constraints
• Default values
• Primary key information

Getting Started

Clone the repository:

git clone https://github.com/hannesrudolph/sqlite-explorer-fastmcp-mcp-server.git
cd sqlite-explorer-fastmcp-mcp-server

Installation Options

You can install this MCP server in either Claude Desktop or the Cline VSCode plugin. Choose the option that best suits your needs.

Option 1: Install for Claude Desktop

Install using FastMCP:

fastmcp install sqlite_explorer.py --name "SQLite Explorer" -e SQLITE_DB_PATH=/path/to/db

Replace /path/to/db with the path to your SQLite database file.

Option 2: Install for Cline VSCode Plugin

To use this server with the Cline VSCode plugin:

1. In VSCode, click the server icon (☰) in the Cline plugin sidebar
2. Click the “Edit MCP Settings” button (✎)
3. Add the following configuration to the settings file:

{
  "sqlite-explorer": {
    "command": "uv",
    "args": [
      "run",
      "--with",
      "fastmcp",
      "--with",
      "uvicorn",
      "fastmcp",
      "run",
      "/path/to/repo/sqlite_explorer.py"
    ],
    "env": {
      "SQLITE_DB_PATH": "/path/to/your/database.db"
    }
  }
}

Replace:

• /path/to/repo with the full path to where you cloned this repository (e.g., /Users/username/Projects/sqlite-explorer-fastmcp-mcp-server)
• /path/to/your/database.db with the full path to your SQLite database file

Safety Features

• Read-only access to SQLite databases
• Query validation and sanitization
• Parameter binding for safe query execution
• Row limit enforcement
• Progress output suppression for clean JSON responses

Development Documentation

The repository includes documentation files for development:

• mcp-documentation.txt: Contains comprehensive documentation about the MCP server implementation and FastMCP framework usage.

This documentation serves as context when developing features and can be used with LLMs to assist in development.

Environment Variables

The following environment variables must be set:

• SQLITE_DB_PATH: Full path to the SQLite database file you want to explore