Transgender and gender diverse (TGD) children, adolescents, and their families are increasingly seeking out pediatricians and mental health providers for education, treatment, and services related to gender-affirming care. However, due to a lack of training and information about providing gender-affirming care, providers may feel unprepared to offer this level of care to children and adolescents in TGD communities. This toolkit is a curated list of resources created by the National LGBTQIA+ Health Education Center to aid medical and behavioral health providers.