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Dev.to
7/15/2026
Build a Natural Language to SQL API in Python

Build a Natural Language to SQL API in Python

Short summary

A hands-on tutorial for building a Flask-based natural-language-to-SQL API using Telnyx AI Inference. The app accepts plain-English questions plus schema DDL, generates SQL via an LLM, and validates queries for read-only safety before execution. Includes a sample SQLite dataset and covers real-world use cases like analytics assistants and support dashboards.

  • Flask API converts natural language questions to SQL using Telnyx AI Inference
  • Validation layer enforces read-only queries, rejects multi-statement and write operations
  • Includes sample SQLite dataset and full setup instructions with curl examples

Generated with AI, which can make mistakes.

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