AI-Proctor is a system to guarantee the integrity of online assessments. It consists of (1) a web application used by the examiner to set proctoring options and to add the exam link or upload exam questions, (2) a desktop application for the test taker acting as a secure browser, (3) an optional mobile app companion to proctor the student using mobile camera in addition to laptop camera. AI-Proctor is also available as a mobile application for both Android and iOS users. The system makes sure the test taker is not opening other applications or web sites during the exam, no one other than the test taker is taking the exam, and there is no one talking around the test taker. The system has been used to proctor tens of thousands of exam hours.