Natural-language-to-SQL agent built with LangGraph and FastAPI. Ask questions in plain English, get answers from your database. Powers QueryDB (querydb.in) โ self-host or use free at querydb.in
natural-language-processing postgresql openai sql-generation sql-agent text-to-sql nl2sql fastapi ai-agent sqlglot anthropic langchain-python litellm langgraph database-chatbot
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Updated
Jul 10, 2026 - Python