Considering that social media influencers are affected by their credibility and that this attribute affects customer purchase intention, there is a lack of research on the mediating effect of agribusiness influencer credibility and its effect on purchasing behavior. In this context, through a literature review, this study aims to provide a discussion on the importance of influence marketing and endorsement, as well as to present a classification for digital influencers in agribusiness in Brazil, based on their characteristics and behavior, a topic not yet detailed in current literature. Finally, the study presents a view of theories related to the topic, bringing conclusions, limitations and additional research.