MCP Academy · Lesson

Expose SQL Queries Safely

Offer read access to a database without injection.

Databases Behind a Tool

An MCP server can give a model real data by wrapping a database behind a tool, so the AI asks questions instead of touching raw tables. 🗄️

Reads, Not Writes

For safety, start by exposing only read access. Let the model query and report, but keep inserts, updates, and deletes off the table.

All lessons in this course

  1. Expose SQL Queries Safely
  2. Wrap a REST API as Tools
  3. Pool Connections in Lifespan
  4. Cache & Rate-Limit Upstreams
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