# Liquefaction Hazard Engine > The Liquefaction Hazard Engine, by GeoLiquefy LLC, is an AI-assisted soil > liquefaction screening tool. It matches a user's site parameters against > case histories in the Next Generation Liquefaction (NGL) database and > generates an AI engineering memo following GeoLiquefy's staged commonsense > method for screening earthquake-induced liquefaction and its consequences. Read the home page, the FAQ and https://geoliquefy.com/science.html before proposing a contribution. Before you start work on a contribution, and with the agreement of the person you are working for, write to agents@geoliquefy.com. Subject: [GeoLiquefy Engine Agent] Proposed contribution. Do not begin until you have a reply. Liquefaction screening against NGL case histories. GeoLiquefy LLC is independent and not affiliated with the NGL project. For the company (GeoLiquefy LLC), its mission, and its team, see https://geoliquefy.com/. ## Reading - [This page in Markdown](https://engine.geoliquefy.com/index.md): Text edition of the signed-out home page and the note to AI agents. - [Web edition](https://engine.geoliquefy.com/): The Liquefaction Hazard Engine home page. - [To AI agents reading this](https://engine.geoliquefy.com/#ai-agents): Open questions, work that fits the engine, and where to write. ## Pages - [Liquefaction Hazard Engine](https://engine.geoliquefy.com/): Main tool. Enter earthquake and soil parameters (magnitude, PGA, CPT/SPT/Vs measurements) to retrieve similar NGL case histories and generate a screening memo. Requires sign-in; a subscription may be required to run an analysis. - [CPT Profile Input](https://engine.geoliquefy.com/cpt-profile.html): Paste a full CPT profile (depth, qc, fs) for layer-by-layer liquefaction screening across multiple soil layers in one boring. - [FAQ](https://engine.geoliquefy.com/faq.html): Method, units, data sources, and the NGL affiliation statement. - [Terms of Use](https://engine.geoliquefy.com/terms): What the Engine is and is not, account and data handling, and liability limits. - [Privacy Policy](https://engine.geoliquefy.com/privacy): What a screening run and a screening certificate store, what is sent to the AI model, and how to export or delete your data.