(Platinum version of the plugin)
The Stripe Payments addon (www.stripe.com) provides a way to accept all major cards from customers around the world on web. This addon requires SSL on your website to be able to carry the transaction in a secure way. Credit card data is entered directly in the website without navigating to an external page.
DocumentationEnabling addon

Easy to activate
To activate the add-on, simply visit the plugin page through the menu option: "Settings/Calculated Fields Form", tick the checkbox: "CFF - Stripe", and press the "Activate/Deactivate Addons" button.
Stripe Settings

Stripe Settings
Enable Stripe, enter the "Publishable Key", the "Secret Key", "Payment frequency", "Trial period", "Plan name for subscription payments", etc.