Summary
This is a static analysis toolkit for SQL that doesn't touch your actual database. It gives Claude five tools: sql_format for prettifying queries, sql_explain for translating SQL into plain English with optimization hints, schema_analyze for parsing CREATE TABLE statements and generating Mermaid ER diagrams, query_build for generating SQL from natural language, and migration_generate for diffing two schemas and producing ALTER TABLE statements with rollback support. Useful when you're working with SQL in documentation, learning queries, or need quick schema visualization without spinning up a database connection. Supports MySQL, PostgreSQL, and SQLite syntax across all tools.
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MCP server providing SQL and database tools for AI agents. All analysis is performed on SQL text — no actual database connection required.
Tools
sql_format
Format and prettify SQL queries with proper indentation, uppercased keywords, and aligned columns. Supports MySQL, PostgreSQL, and SQLite syntax.
sql_explain
Take a SQL query and explain what it does in plain English, step by step. Identifies query type, tables, columns, conditions, and provides optimization tips.
schema_analyze
Parse CREATE TABLE statements to extract tables, columns, types, constraints, foreign keys, and indexes. Generates an ER diagram in Mermaid format.
query_build
Build SQL queries from natural language descriptions. Supports common patterns like filtering by date, aggregation, joins, ordering, and pagination.
migration_generate
Compare two schemas (old vs new CREATE TABLE statements) and generate ALTER TABLE migration statements. Produces both up (forward) and down (rollback) migrations.
Installation
npm install
npm run build
Usage
With Claude Desktop
Add to your Claude Desktop config (claude_desktop_config.json):
{
"mcpServers": {
"database-tools": {
"command": "node",
"args": ["path/to/mcp-database-tools/dist/index.js"]
}
}
}
Standalone
npm start
Development
npm run build # Compile TypeScript
npm start # Run the server
License
MIT
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Categories
Registryactive
Package@rog0x/mcp-database-tools
TransportSTDIO
UpdatedMar 22, 2026
