Brazilian Open Finance, formerly known as Open Banking, has experienced remarkable growth in just four years since its launch by the Central Bank of Brazil (BCB). By March 2025, the number of users who consented to data sharing reached 49.15 million, a 75% surge compared to early 2024. This expansion resulted in an impressive 73.82 million active consents and 3.15 billion API calls per week, solidifying Brazil's position as one of the most advanced Open Finance ecosystems globally, as recognized by entities like Open Banking Excellence and the Global Open Finance Index. However, this rapid evolution has not been without its challenges, as companies had to adjust their product development to meet new regulatory requirements, impacting short-term outcomes.