This project focuses on the development of a tangible interaction programing toolkit for Virtual Reality (VR). Marker-based tangible interactions have been explored before, but no development libraries exist for facilitating developers’ work. Particularly for accessible web-based VR frameworks such as A-Frame, the complexity of the interactions is limited by programming difficulties, due to the inexistence of high-level programmatic abstractions. As such, in this project the goal is to develop a set of abstractions that facilitate the development of tangible experiences in the A-Frame platform. We have developed an initial version of a component library and have started evaluating it through task-based API usability testing. We report preliminary results from this usability testing.