A visa is required for conference participants travelling to the country; and are not Kenyan Citizens.
The government of Kenya has rolled out an online visa application portal accessible on https://www.ecitizen.go.ke. In effect, from 1st September 2015, all visa applicants will be required to apply and pay for visas online.
The Visa's will be processed and sent online to applicant(s). The applicant(s) will then be required to print out the approved visa and present it to an immigration officer at the point of entry.
Single Entry Visa (SJV) valid for three months from date of issue – US$ 50
Multiple Entry Visa (MJV) – $110
You can also pay using Euros, GBP or SwissFrancs. All the visa requirements will apply to children under 16 years who were previously exempted from visa payment and other formalities.
For more information please check http://www.immigration.go.ke
Source - Magical Kenya