PostgreSQL Natural Language MCP

FastMCP server that lets Claude query any Postgres database conversationally. Schema introspection (list tables with row counts, describe columns, sample rows), then natural-language questions become SQL that the server validates hard: session-level read-only mode, single-statement enforcement, mutation-keyword blocklist, statement timeout, and automatic row caps. Injection-safe identifier quoting on sample queries. Point it at your production replica and ask "which customers churned last month and what did they have in common?"