Do Malian citizens need a transit visa?
Previously, travelers from visa-required countries who were transiting through Kenya and wished to exit the airport's international zone during their stopover needed to get a Kenya Transit Visa. Malians were excluded from this requirement and did not need to get a transit visa for such layovers.
The situation has altered after the introduction of the Kenyan ETA. The ETA has replaced the transit visa, thus Malian tourists who want to leave the international zones of Kenya airports during layovers must apply for a Kenya ETA.
However, there is one exception. If you are a Malian transiting through Kenya and do not intend to exit the airport's international zone, you will not be required to apply for a transit visa. This applies if you're staying in the airport's international zone or changing between planes.