WooCommerce API Manager:

Make Recurring Income Selling Software or Services

The WooCommerce API Manager turns WooCommerce Products into an API Resource that can be accessed with an API Key, aka License Key. API Resources (products) are software, a service, an iPhone or Android App, a membership, a subscription, or anything that can be accessed over the Internet. The most frequently used Product types are Simple, Variable, Simple Subscription, Variable Subscription, and Group. Subscription product types are created using the WooCommerce Subscriptions extension.

How does it work? The customer buys one or more API Key activations that can used for an API Resource, then uses the API Key to access the API Resource, which is the product or service, and the WooCommerce API Manager controls access to the API Resource for the length of time set for that API Resource. For even more advanced API Resource time management, the WooCommerce API Manager works seamlessly with WooCommerce Subscriptions.