![from left: Gloria Eichler, CPO at smartclip, Christian Osterhues, VP of People & Culture, and Shira Leffel, VP of Marketing & Product Education at smartclip](https://smartclip.wpenginepowered.com/wp-content/uploads/2024/06/preview-leadership-thumbnail-smartclip-new-1.jpg)
7 June 2024
Last modified: 15 March, 2022
Developed and regularly updated by the IAB Tech Lab, OpenRTB Protocol is an API specification that establishes a standardised, simplified protocol for programmatic/RTB (real-time bidding) auction environments, where the almost instantaneous process of bidding on and buying digital ad impressions takes place.