OpenID specifications are developed by OpenID working groups and go through three phases: Drafts, Implementer’s Drafts, and Final Specifications. Implementer’s Drafts and Final Specifications provide intellectual property protections to implementers. Final Specifications are OpenID Foundation standards.

Final Specifications

OpenID Connect specifications:

Implementer’s Drafts

OpenID Connect specifications:

  • Session Management – (Optional) Defines how to manage OpenID Connect sessions, including logout functionality
  • OAuth 2.0 Form Post Response Mode – (Optional) Defines how to return OAuth 2.0 Authorization Response parameters (including OpenID Connect Authentication Response parameters) using HTML form values that are auto-submitted by the User Agent using HTTP POST


Obsolete Specifications

Final OpenID 2.0 specifications:

OpenID 2.0 Drafts:

Early OpenID specifications: