Sign Up with Capital One API MASTER RECORD Banking Financial The Sign Up with Capital One API returns JSON responses to verify customers. OAuth2 authentication is required to retrieve an authorization code.Track APISee All Versions ↓ VersionsSDKs (0)Articles (1)How To(0)Source Code(0)Libraries(0)Developers (0)Followers (1)Changelog (1) Versions SDKs Articles How To Source Code Libraries Developers Followers ChangelogSign Up with Capital One Version HistoryFilter by Architectural Style:AllREST Architectural Styles TitleStyleVersionStatusSubmittedTitle:Sign Up with Capital One REST APIStyle:RESTVersion:N/AStatus:Recommended (active, supported)Submitted:11.09.2018