SQLite Explorer MCP Server

DatabasesPython

Provides safe, read-only access to SQLite databases

Available Tools

read_query

Execute a SELECT query on the database with built-in safety validations. Supports query validation, parameter binding, row limit enforcement, and returns results formatted as dictionaries.

queryparams

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, and primary key information.

table_name

SQLite Explorer offers a secure way to interact with SQLite databases through a Model Context Protocol interface. Built with the FastMCP framework, it enables language models to explore database schemas and execute read-only queries with robust safety features. The server includes built-in query validation, parameter binding, and row limit enforcement to ensure secure database access. With tools for listing tables, describing schemas, and executing SELECT queries, it provides comprehensive database exploration capabilities while maintaining strict read-only access.

Overview

SQLite Explorer provides a secure interface for language models to interact with SQLite databases. This tool enables exploration of database schemas and execution of read-only queries with comprehensive safety features.

Installation

Prerequisites

Python 3.6 or higher
A SQLite database file

Setup Instructions

Install Dependencies
```
pip install -r requirements.txt
```
Key dependencies include:
- fastmcp
- uvicorn
Configure Environment

Set the path to your SQLite database:
```
export SQLITE_DB_PATH=/path/to/your/database.db
```
Installation Options

Option 1: For Claude Desktop

Install using FastMCP:
```
fastmcp install sqlite_explorer.py --name "SQLite Explorer" -e SQLITE_DB_PATH=/path/to/db
```
Option 2: For Cline VSCode Plugin

Add the configuration to your Cline VSCode plugin settings (see installation JSON below).

Usage

Once installed, you can use the SQLite Explorer to:

List Tables: Get a complete list of all tables in the database
Describe Tables: View detailed schema information for specific tables
Execute Queries: Run read-only SELECT queries with parameter binding support

Example Queries

-- List all tables
list_tables()

-- Describe a specific table
describe_table("users")

-- Execute a simple query
read_query("SELECT * FROM users LIMIT 10")

-- Execute a query with parameters
read_query("SELECT * FROM users WHERE age > ?", [25])

Safety Features

SQLite Explorer implements several safety measures:

Read-only Access: Only SELECT queries are permitted
Query Validation: All queries are validated before execution
Parameter Binding: Prevents SQL injection attacks
Row Limit Enforcement: Prevents excessive data retrieval
Clean JSON Responses: Progress output is suppressed for clean responses

Troubleshooting

If you encounter issues:

Verify your database path is correctly set in the environment variable
Ensure you have proper read permissions for the database file
Check that your queries are valid SELECT statements
Confirm all dependencies are properly installed