Aspects of the embodiments are directed to an augmented reality Completely Automated Public Turing test to tell Computers and Humans Apart (“captcha”). Upon determining that a user, operating a user device, is attempting to access a website, a host server can cause a camera on the user device to activate and begin streaming and image feed to the host device across a network. The host device can determine an appropriate augmentation to the image feed that is germane to the context and/or environment of what is being displayed in the image feed. The augmentation can be displayed to the user on a display of the user device. The augmentation can also include a prompt instructing the user how to interact with the augmentation. The host server can determine whether to grant the user access based on the user's interaction with the augmentation.