We have worked hard to make verifying your customers' license keys as easy as possible. Verifying a license key in your application. The application uses its own algorithm to check the license is okay or not.The application receives a response from Gumroad and gets the license information (including email, product id, additional fields, create_time, subscription_time).The application sends a request to Gumroad license verification API to check if the license is okay or not.The customer launches the application and inputs the license key somewhere in the application.The customer will get an email about the purchase with a license key.Create a product with 'generate license key for each sale'.You can also check if a purchase has been refunded or charged back by checking the refunded/chargebacked fields of the license verify API call response. Remember that if you check for a valid license on each launch you will increment the usage count unless you set increment_uses_count flag to false. Gumroad does no additional license key verification. As the seller, you can decide how many uses each key gets depending on the verify license API calls you make. License key enforcement is completely up to you. You can also retroactively add license keys to a product. Scroll down to Settings and click the Generate a unique license key per sale toggle. Setting up a product that issues license keys.Ĭlick on a product in your Products Dashboard to open the Product drawer.

Adding a license key to a digital product that is not software will simply add a license key to the bottom of a customer's receipt which has no effect on their purchase or ability to access their purchase. License keys will NOT help you limit access to digital audio, video, or ebook files that you are selling on Gumroad. The license keys correspond to purchases that a creator can verify through their own application, and then authorize or revoke access to software they've created. License keys are primarily used for creators selling software. To work with Gumroad's license keys, make sure you are familiar with cURL.

License key free