Once you successfully sign up, in the left menu, click Developer > API containing API Keys with secret key and publishable key of both test and live version is shown up.
Finally, copy the live secret key and published key, then paste into API Config field from your admin dashboard (Engine settings β Payment Gateway β Stripe)
*Note: In case you have a Stripe account, just click on βActivate your accountβ sub-tab under βHomeβ section located in the top right corner. Then, select API Keys to get Live secret key & Live publishable key.