In general, if you are transiting through Kenya and you do not intend to leave the international transit area of the airport, you may not need a transit visa. However, if you plan to exit the airport or have a long layover, you may require a transit visa.
Kenya offers different types of visas, including transit visas that allow you to stay in the country for a limited period solely for transit purposes. These visas usually have specific requirements and fees associated with them. Typically, a Kenya transit visa is valid for 90 days and allows travelers to stay in this country for 72 hours only. If you intend to stay longer, you need to apply for another type of visa (Tourist e-visa).
To determine whether you need a transit visa for Kenya, consider factors such as your nationality, the length of your layover, and any activities you plan to undertake during your transit. It's advisable to contact the Kenya Immigration Services or visit the official website of the Kenyan immigration authorities to obtain the most accurate and up-to-date information regarding transit visa requirements.
To conclude, you need a Kenya visa to transit through this country. However, if you just pass by Kenya for a short period of time and you are willing to stay at the airport, then you do not need to apply for a transit visa.