Registries maintained by the OAuth Working Group
OAuth Access Token Types
RFC6749, RFC8414
OAuth Authorization Endpoint Response Types
RFC6749
OAuth Authorization Server Metadata
RFC8414
OAuth Dynamic Client Registration Metadata
RFC7591
OAuth Extensions Error Registry
RFC6749
OAuth Parameters
RFC6749
OAuth Token Endpoint Authentication Methods
RFC7591, RFC8414
OAuth Token Introspection Response
RFC7662
OAuth Token Type Hints
RFC7009
OAuth URI
RFC6755
PKCE Code Challenge Methods
RFC7636