DBeast PostgreSQL MCP server

A PostgreSQL MCP server that gives AI assistants expert DBA capabilities.

Quick Start · Demo · Tools · Safety · Configuration · Docs

DBeast connects AI assistants such as Claude, Cursor, Windsurf, and VS Code Copilot to PostgreSQL through the Model Context Protocol. Instead of exposing one broad executesql escape hatch, DBeast provides 21 focused tools** for schema discovery, safe query execution, impact analysis, performance review, security checks, maintenance reporting, replication monitoring, and data quality inspection.

Demo

Watch Claude use DBeast MCP tools to audit a PostgreSQL database, identify security and maintenance risks, and preview cleanup impact without executing destructive SQL.

Watch the demo on YouTube

How It Works

AI assistant  --MCP stdio-->  DBeast server  --asyncpg-->  PostgreSQL
Claude/Cursor                  Python local                 Local, RDS,
Windsurf/VS Code               subprocess                   Supabase, Neon

DBeast runs as a local stdio MCP server. Your IDE or desktop assistant starts it as a subprocess and passes database credentials through environment variables. The assistant calls DBeast tools, DBeast queries PostgreSQL, and structured results come back to the assistant. No HTTP service or extra infrastructure is required.

Quick Start

1. Install

git clone https://github.com/snss10/DBeast.git
cd DBeast
pip install -e .

For development:

pip install -e ".[dev]"

Optional: copy .env.example to .env and set your database credentials.

2. Verify

dbeast

Or run the source entry point directly:

python src/server.py

3. Configure Your MCP Client

Minimal Cursor or Windsurf config:

{
  "mcpServers": {
    "dbeast": {
      "type": "stdio",
      "command": "python",
      "args": ["/absolute/path/to/DBeast/src/server.py"],
      "env": {
        "DATABASE_URL": "postgresql://user:password@localhost:5432/mydb"
      }
    }
  }
}

Common config locations:

See SETUP.md for full client examples, Docker, RDS, Supabase, Neon, SSH tunnels, AWS Secrets Manager, and troubleshooting.

4. Ask Simple or Complex Questions

Once connected, your assistant can answer quick lookup questions and also run multi-step database investigations.

Simple examples:

Show me the schema for the orders table.
Which queries are slowest right now?
Run a security audit on the public schema.
Generate a Mermaid ERD for the sales schema.

More complex examples:

Shortened. The full README is on GitHub.