User-Managed Access (UMA) 2.0 Grant for OAuth 2.0 Authorization
Eve Maler, Maciej P. Machulak, Thomas Hardjono, Justin P Richer · 2019
This specification defines a means for a client, representing a requesting party, to use a permission ticket to request an OAuth 2.0 access token to gain access to a protected resource asynchronously from the time a resource owner authorizes access.