Single Sign-On API

Introduction to OAuth, OIDC, JWT, SAML, OAuth M2M, and cross-device SSO APIs for federation and multi-application identity flows.

Overview

The Single Sign-On API is the group for federation, delegated authorization, token exchange, protocol-level SSO, and multi-application identity flows. Use this group when you are integrating standards-based SSO models such as OAuth, OpenID Connect, JWT, and SAML, or when you need service-to-service and cross-device sign-on behavior.

This group is protocol-oriented and is best approached based on the authentication model you are implementing.

What this API group covers

The current Single Sign-On API group includes:

  • OAuth
  • OIDC
  • OAuth M2M
  • JWT
  • SAML
  • Cross Device SSO

These sections cover both provider-style and consumer-style SSO interactions across web, mobile, device, and service-to-service contexts.

Available sections

OAuth

Endpoints for OAuth-based authorization, token issuance, revocation, introspection, and delegated access workflows.

OIDC

Endpoints for OpenID Connect discovery, device code, token exchange, userinfo, and OIDC-compatible identity flows.

OAuth M2M

Machine-to-machine token and authorization flows for service-to-service integrations.

JWT

JWT-based SSO flows where token generation, consumption, or token-backed identity exchange is the primary integration model.

SAML

SAML-oriented operations for federated identity scenarios where LoginRadius participates in SAML-based interoperability.

Cross Device SSO

Flows used when authentication state or identity exchange must move across devices or applications.

Common workflows

This group is commonly used for:

  • configuring standards-based delegated authorization flows
  • exchanging device or authorization codes for tokens
  • introspecting or revoking tokens
  • implementing JWT-backed SSO between applications
  • integrating SAML-based federation
  • supporting M2M access for backend services
  • handling cross-device authentication continuation

When to start here

Start with the Single Sign-On API when:

  • you are implementing protocol-driven federation
  • your integration is centered on OAuth, OIDC, JWT, or SAML
  • you need service-to-service authorization
  • you need token exchange or delegated auth flows
  • you are building cross-app or cross-device identity continuity

If you are building basic customer registration and login, start with the Authentication API first.

Next steps

  • Review the Authorization page for protocol-specific auth expectations in this group
  • Start with OAuth or OIDC for standards-based delegated authorization
  • Use JWT or SAML when the downstream integration requires those specific federation models
  • Use OAuth M2M for backend service authentication

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