This paper examines the reasons why the Amphictyonic Council, called by Simon Bolivar to unite the new American republics, could not meet in Mexico after it relocated from Panama in 1826. We define the positions of the plenipotentiary ministers based on primary sources and documents of that time, including the unpublished minutes of the meeting between ministers of the United States and the Gran Colombia. The importance of this document is put in context in this article, and the document allows the controversy that divided Hispanic Americans regarding the possibility of installing the Council without waiting for the ratification of the Isthmus Treaties to become known.O presente artigo examina as causas pelas quais a assembleia anfictiônica...