REST API Functions > zapikey in Header ?

REST API Functions > zapikey in Header ?

Is it possible to send zapikey in the Request header? 

Current URL:
https://www.zohoapis.com/crm/v2/functions/{name}/actions/execute?auth_type=apikey&zapikey={apiKey}

Due to some security concerns and project limitations, we like to pass this {apiKey} in the Header. Is it possible to achieve?