Free financial data for AI agents: what it took to wire four regulators into one schema

If you ask a language model "which free financial data APIs exist?", you get the same list every time: SEC EDGAR, FRED, a couple of vendor free tiers, and yfinance. It is not wrong. It is just very American, and it stops at "here is a URL". This post is about what happens after the URL — what we learned building a small data service that pulls...