The ChatGPT UI fork that chose MongoDB over simplicity

What it does This is a self-hosted ChatGPT web interface built with Express and Vue 3 that wraps the official OpenAI completion API. Unlike its parent project, it persists data to MongoDB and supports multi-user deployments with per-account limits, redeemable conversation quotas, and role-based access. It essentially turns a personal chat wrapper into a small shared platform.

The interesting bit The entire project exists because the original maintainer rejected database dependencies; this fork permanently split off to chase the opposite goal. That disagreement spawned a team-ready deployment complete with redeemable conversation codes, LDAP/OIDC/SAML SSO via auth-proxy headers, and Tavily-powered web search.

Key highlights

• User registration, 2FA, and per-session prompt customization
• Admin panel for user management, API key rotation, and manual conversation limits
• SSO integration through reverse-proxy auth headers (supporting LDAP, OIDC, and SAML)
• Real-time web search augmentation via the Tavily API
• Support for VLLM endpoints and a toggle to disable deep-thinking modes

Caveats

• SSO via auth proxy is explicitly flagged as risky if misconfigured, and intended only for experienced operators
• The README is primarily Chinese; English documentation exists but may lag behind
• Requires MongoDB and Node 20+, making it heavier than the original project

Verdict Worth a look if you need to share ChatGPT access with a team, impose usage quotas, or plug into corporate identity systems. Stick with the upstream project if you just want a quick, personal chat interface without database baggage.