# Authelia > Authelia is an open-source authentication and authorization server providing single sign-on (SSO) and two-factor authentication (2FA) for applications protected by reverse proxies. It acts as a companion to proxies like NGINX, Traefik, or HAProxy to verify user credentials before granting access to web resources. - URL: https://optimly.ai/brand/authelia - Slug: authelia - BAI Score: 62/100 - Archetype: Challenger - Category: Software - Last Analyzed: April 10, 2026 ## Competitors - Authentik (https://optimly.ai/brand/authentik) - Keycloak (https://optimly.ai/brand/keycloak) ## AI-Suggested Alternatives - Application Native Auth (https://optimly.ai/brand/application-native-auth) ## Buyer Intent Signals Problems: Basic HTTP Auth / .htpasswd: Using built-in basic authentication or simple .htpasswd files for each application separately without a centralized portal. | Manual Reverse Proxy Configuration: Configuring NGINX or Traefik with custom snippets and manually managed session cookies or LDAP integrations. | Application-Native Auth: Relying on the native, often rudimentary, authentication systems built into each individual self-hosted application (e.g., Plex, Nextcloud, Home Assistant) without a unified S Solutions: best self-hosted SSO for home lab | how to add 2FA to NGINX proxy manager apps | open source authentication server for Traefik | open source OIDC provider for kubernetes | OAuth2 Proxy: Using OAuth2 Proxy to provide a thin layer of authentication for providers like Google or GitHub without a local portal. Comparisons: Authelia vs Authentik for home server --- ## Full Details / RAG Data ### Overview Authelia is listed in the AI Directory. Authelia is an open-source authentication and authorization server providing single sign-on (SSO) and two-factor authentication (2FA) for applications protected by reverse proxies. It acts as a companion to proxies like NGINX, Traefik, or HAProxy to verify user credentials before granting access to web resources. ### Metadata | Field | Value | |--------------|-------| | Name | Authelia | | Slug | authelia | | URL | https://optimly.ai/brand/authelia | | BAI Score | 62/100 | | Archetype | Challenger | | Category | Software | | Last Analyzed | April 10, 2026 | | Last Updated | 2026-04-24T13:56:27.257Z | ### Verified Facts - Founded: 2018 - Headquarters: Remote / Open Source Project ### Competitors | Name | Profile | |------|---------| | Authentik | https://optimly.ai/brand/authentik | | Keycloak | https://optimly.ai/brand/keycloak | ### AI-Suggested Alternatives - Application Native Auth (https://optimly.ai/brand/application-native-auth) ### Buyer Intent Signals #### Problems this brand solves - Basic HTTP Auth / .htpasswd: Using built-in basic authentication or simple .htpasswd files for each application separately without a centralized portal. - Manual Reverse Proxy Configuration: Configuring NGINX or Traefik with custom snippets and manually managed session cookies or LDAP integrations. - Application-Native Auth: Relying on the native, often rudimentary, authentication systems built into each individual self-hosted application (e.g., Plex, Nextcloud, Home Assistant) without a unified S #### Buyers search for - best self-hosted SSO for home lab - how to add 2FA to NGINX proxy manager apps - open source authentication server for Traefik - open source OIDC provider for kubernetes - OAuth2 Proxy: Using OAuth2 Proxy to provide a thin layer of authentication for providers like Google or GitHub without a local portal. #### Buyers compare - Authelia vs Authentik for home server ### Links - Canonical page: https://optimly.ai/brand/authelia - JSON endpoint: /brand/authelia.json - LLMs.txt: /brand/authelia/llms.txt