Gumroad v2 API
REST API for managing products, variants, offer codes, custom fields, sales, subscribers, license keys, resource subscriptions (webhooks), and the authenticated user account on Gumroad. Authentication is via OAuth 2.0 access tokens obtained at https://gumroad.com/oauth/applications and exchanged at https://api.gumroad.com/oauth/token.
Documentation
Specifications
Other Resources
Create an Application
https://gumroad.com/help/article/280-create-application-api
OAuth Applications
https://gumroad.com/oauth/applications
GraphQL
https://raw.githubusercontent.com/api-evangelist/gumroad/refs/heads/main/graphql/gumroad-graphql.md
APIsJSON
https://raw.githubusercontent.com/api-evangelist/gumroad/refs/heads/main/apis.yml