At international level, he features for Republic of the Congo. His main role on the pitch is Forward.

His latest transfer saw him join Dubai City FC from Masfout Club via on 2026-01-25.

During the FIFA World Cup qualification (CAF) 2026 campaign, Mignon Koto made 3 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.