LLMSchema vs Taavik

LLMSchema is free, MIT-licensed software that generates database schema documentation for LLMs and AI agents. It extracts relational schemas from PostgreSQL, MySQL, and SQLite, then documents tables, columns, types, indexes, constraints, and relationships in Markdown. The default output is one portable Markdown document. An alternate layout creates an overview plus a separate Markdown file for each table. Users can include selected tables or exclude tables from the generated documentation. LLMSchema is available as a command-line tool and a Go library, with installation instructions for Go and a quick install script for macOS and Linux. The README shows adding schema generation to a Makefile or migration script to keep documentation current. It also suggests pointing a coding agent to the schema files from AGENTS.md, CLAUDE.md, or an equivalent instruction file. The project is self-hosted and listed for Linux, macOS, and Windows. Its maker positions it for development databases and says not to rely on it for production-critical documentation.

Taavik generates database documentation from schema scans, keeps it updated as schemas change, and preserves manual notes. It supports PostgreSQL, SQL Server, MySQL, and Amazon Redshift. Each scan creates a schema difference, while object pages show recent changes. Teams can save and share read-only SQL queries with typed variables, version history, and execution audit records. Scheduled queries can export CSV or Excel results to Slack or email. A read-only MCP connector exposes scanned schema to compatible clients including Claude Code, Cursor, and Windsurf. Taavik uses hybrid deployment: its cloud control plane runs on dedicated virtual machines in the European Union, while database rows remain in the customer network except during queries or schedules. The on-premise agent runs on Windows, Linux, or Docker. The Free plan costs nothing and covers one database server, two members, and 30 days of history.