OBIWAN API uses statistics, models, and lidar measurements developed by NASA's GEDI mission to support entity-scale reporting of forest biomass change. Background for GEDI and OBIWAN was presented at the University of Alabama Huntsville on 29 Augus, 2025 as part of a hand-off of technology developed under NASA's SERVIR program. Available here are recordings of both an introductory presentation and a hands-on tutorial of the API, based around a colab (python) notebook. That notebook covers OBIWAN applications in the state of Alabama and can be found here: https://colab.research.google.com/drive/17UGDca_u9ukczhKNv7Rs1V_vgMIY9Cns?usp=sharing