Video Player-Ad Interface Definition (VPAID)

A deprecated IAB spec that let interactive video ads run code inside the player; replaced by SIMID for interactivity and OM SDK for measurement.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Video Player-Ad Interface Definition (VPAID) is a deprecated IAB specification that allowed interactive video ads to run executable code inside the video player. Concerns over performance, security, and limited support on mobile and CTV led to its replacement by SIMID for interactivity and the Open Measurement SDK for measurement.