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+---
+display_name: OpenID connect (OIDC)
+short_description: OIDC is an authentication protocol that is often used as an SSO method.
+topic: oidc
+created_by: OpenID Foundation, Google, Microsoft
+released: February 26, 2014
+related: saml, sso, oauth, oauth2, jwt, pkce, 2fa, mfa, totp, webauthn
+aliases: openid-connect
+url: https://openid.net/developers/how-connect-works/
+wikipedia_url: https://en.wikipedia.org/wiki/OpenID#OpenID_Connect_(OIDC)
+---
+**OpenID connect** (**OIDC**) is an authentication layer on top of the [OAuth 2.0 authorization framework](https://github.com/topics/oauth2). Beside [SAML](https://github.com/topics/) it's widely known for being used as a [single sign-on](https://github.com/topics/sso) method. It uses [REST](https://github.com/topics/rest-api) and [JSON](https://github.com/topics/json) for communication with the identity provider.