---
id: oidc
title: OIDC
hoverText: OpenID Connect — an authentication protocol layer built on top of OAuth 2.0.
---

OIDC (OpenID Connect) is an authentication protocol layer built on top of OAuth 2.0. Themelio uses OIDC as the standard protocol for integrating with RCIAM, Keycloak, and other identity providers, enabling federated authentication across the platform's services.