RegKnot is an AI-powered maritime compliance assistant designed to help commercial mariners understand and apply complex regulations. Built by an Unlimited Licensed Master Captain and her engineer brother, the service provides vessel-specific answers in plain English, with citations to the underlying regulatory texts for verification. Its indexed sources include IMO conventions and codes such as SOLAS, MARPOL, IMDG, COLREGs, STCW, and the ISM Code; U.S. federal regulations and USCG guidance; and requirements from numerous flag-state regulators, including the UK, Australia, Singapore, Hong Kong, Norway, Liberia, the Marshall Islands, and the Bahamas.

Users create a vessel profile with details such as vessel type, flag, tonnage, route, and cargo so that responses can be scoped to their operations. RegKnot also helps mariners track credentials and generate USCG paperwork. The service verifies cited sections against source texts and indicates when a claim cannot be confirmed, aiming to reduce the risk of errors during inspections and compliance work. Access includes a seven-day free trial, followed by ten free questions every 30 days.