This article Explains How To register for Airtel Money. It is free to register for Airtel Money. To do so you need to visit your nearest Airtel Money Agent or any Airtel shop spread across the country and fill in a customer registration form.
Next, you must provide your original identification document, either a Kenyan National ID, Up to date Passport, military ID, or Alien ID.
Once you are registered, you will receive an SMS confirming successful registration on Airtel Money. You will then dial *334# to set your preferred Airtel Money PIN and proceed to set a Security Question.