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FrontMCP implements a flexible three-tier authentication system. Choose the right level for each deployment scenario — from open development servers to production multi-tenant systems.
ModeHow It WorksBest For
PublicNo auth required, anonymous sessionsDevelopment, testing, public APIs
TransparentPass-through tokens from external IdPsExisting Auth0, Okta, Azure AD setups
OrchestratedFull OAuth 2.1 server (local or remote)Multi-app, federated auth, progressive auth

Auth Overview

Complete authentication guide

Auth Modes

Deep dive into all three modes

Progressive Auth

On-demand scope elevation

CIMD

Multi-account disambiguation

Local OAuth

Built-in OAuth 2.1 server

Remote OAuth

External IdP integration