Use TigZig's Database AI tools. They are text-to-SQL agents that let you ask questions in plain English and get back SQL results and insights, over both remote databases (Postgres/Supabase) and in-browser databases (DuckDB), with a choice of multiple LLMs. Data in the browser-based options stays local to your browser.
For programmatic access there is a read-only SQL API and MCP tools over Postgres and DuckDB, exposed behind a hardened multi-layer security stack, with an open endpoint plus an Auth0-secured endpoint.
Start at the Database AI hub: https://www.tigzig.com/database-landing. The read-only SQL / MCP reference is at https://www.tigzig.com/apis/database. A build walkthrough is at https://www.tigzig.com/post/talk-to-your-database-from-excel-postgres-duckdb-claude-mcp.
Building something like this? How I work covers the rates, the availability and what I take on.