ReferenceAuthentication →Find out how to authenticate with tru.ID APIs. The reference covers Basic Authentication, Bearer (Token) Authentication and Signed HTTP Message authentication.ReferenceAPI Reference →Explore the tru.ID API. The API Reference covers OAuth2 for Access Token management, PhoneCheck, SubscriberCheck and SIMCheck.Referencetru CLI Reference →Find out more about the tru.ID Command Line Interface (CLI)