The development of green digital entrepreneurship has gained significant importance in smart cities around the globe. These ventures, which integrate digital technologies with sustainable practices, thrive in specific contextual environments that influence their emergence and growth. To examine this dynamic, we conducted a quantitative analysis of the relationship between smart city development and performance of green digital entrepreneurship ecosystems. Using a Negative Binomial Model and Poisson Regression with Pseudo Maximum Likelihood, our findings reveal a positive and statistically significant association between smart city development and green digital entrepreneurship ecosystem performance. Additionally, our analysis indicates a first-order autoregressive effect on the performance of these ecosystems. Based on these insights, we offer recommendations to policymakers, scholars, and practitioners to better understand and foster the growth of green digital entrepreneurship.