The Central American Court of Justice (CCJ), the successor to the historic Court of Cartago of 1907, represented an attempt to provide the Central American Integration System with a permanent judicial body responsible for ensuring the uniform interpretation and application of integration law. However, the termination of its functions in 2026 went unnoticed, despite the institution’s significance. From a doctrinal and historical-critical perspective, this article analyzes the factors that prevented the CCJ from consolidating its role as a regional integration court. To this end, it traces its historical evolution, examines the political and institutional context in which it ceased operations, analyzes the limited support it received from member states, compares its jurisdiction with that of the Court of Justice of the European Union, and reviews its case law during its final years. The study shows that its failure stemmed from structural weaknesses and the region’s democratic decline. It also seeks to shed light on the institution’s quiet closure and to prompt reflection on the reasons for its regional consolidation.