API key is optional here
The cited demographics, housing, schools and crime data all load without a key. Only the optional AI assistant needs one, because it sends your question to a large language model to do the reasoning, and that runs on a paid API.
Use a key from your own OpenRouter account, or ask for a short-lived trial key to try it: chi@aiskilldojo.com. Keys are entered in the tool itself and billed to your own OpenRouter account, never by this site.
v5 -- Due-Diligence Portal →
Cited demographics, housing, schools and crime data per city, plus an optional bring-your-own-key AI assistant. Registry 5.0.0 currently ships one enabled city module -- Fremont, 20 cited sources, snapshot dated 2026-07-25.
Optional BYO key Educational - not advice