An open-source reverse proxy that authenticates users

In plain words

Auth-proxy is an open-source HTTP reverse proxy that adds authentication to existing applications. It displays login pages for protected resources and forwards user information via headers to upstream services. Built on Stack Auth, it runs as a Docker container and integrates with any HTTP infrastructure, making it suitable for developers who need to add authentication to legacy or existing systems without modifying the underlying application code.

written from the facts on this page · September 2026

From the sources

Contribute to hexclave/auth-proxy development by creating an account on GitHub.

auth-proxy is a simple one-command proxy that authenticates your HTTP requests and redirects to a pre-built sign-in page if a user is not authenticated. First, sign in and create your API keys on Stack Auth cloud (or you can host it locally ). Stack Auth is the open-source Auth0 alternative. docker run \ -e NEXT_PUBLIC_STACK_PROJECT_ID= < project-id > \ -e NEXT_PUBLIC_STACK_PUBLISHABLE_CLIENT_KEY= < client-key > \ -e STACK_SECRET_SERVER_KEY= < server-key > \ -e SERVER_PORT=3000 \ -e PROXY_PORT=3001 \ -p 3001:3001 \ stackauth/auth-proxy:latest < patterns > You can now access your application server at localhost:3001 and all the routes under the protected patterns will only be accessible by…from github.com

In the maker’s words, at launch

auth-proxy is a minimal HTTP reverse proxy that shows login pages on protected pages, and passes user information in headers. My goal was to build something that’s as flexible as possible and can add auth to any existing infrastructure. It’s pretty straightforward to use, after setting up Stack Auth (which this is…

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