It's absolutely free. Just apply online,
Application Process:
Follow these steps to issue a new Corporate Smart Card or add companies to an Individual Smart Card:

Load the online application form.
Enter all required information, including the Establishment ID and Qatari ID numbers.
Confirm your selection, and send your completed application.
Print and keep your application receipt.
Applicants will be contacted by SMS when the Smart Card is issued and printed by the Ministry of Interior.

Conditions:
Applicants must collect the Smart Card in person, providing a copy of the Qatari national ID (QID) and the Establishment ID Card. The Smart Card can only be collected by submitting a stamped and signed application receipt.