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.Documentation Index
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| Mode | How It Works | Best For |
|---|---|---|
| Public | No auth required, anonymous sessions | Development, testing, public APIs |
| Transparent | Pass-through tokens from external IdPs | Existing Auth0, Okta, Azure AD setups |
| Orchestrated | Full 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
Skills HTTP Auth
API key and JWT auth for skill endpoints