SqlKit is an open-source agentic SQL client for 70+ databases: PostgreSQL, MySQL, SQL Server, Oracle, SQLite, DuckDB, ClickHouse, Snowflake, BigQuery, and more. Describe what you need. The agent writes queries, optimizes slow SQL, explains execution plans, and fixes errors. Bring your own key (OpenAI, Anthropic, DeepSeek, Ollama); credentials never leave your machine. Data Studio MCP connects coding agents like Claude Code and Cursor to your databases. Native Rust + Tauri. Free, Apache 2.0.