zenith-image-generator

Zenith Image Generator

Modern Text-to-Image Generation Web App

A sleek, dark-mode AI image generator with multiple providers, batch generation, and one-click deployment to Cloudflare Pages.

中文 · Changelog · Live Demo

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Features

• Multiple AI Providers - A4F, Gitee AI, HuggingFace Spaces, ModelScope
• Dark Mode UI - Gradio-style with frosted glass effects
• Flexible Sizing - Multiple aspect ratios (1:1, 16:9, 9:16, 4:3, etc.)
• Secure Storage - API keys encrypted with AES-256-GCM
• Token Rotation - Multiple API keys with automatic failover on rate limits
• History (Lightweight) - Stores metadata (URL + params) in localStorage with 24h TTL
• Flow Mode - Visual canvas for batch generation (experimental)
  • Images are referenced by remote URLs (no blob caching)
  • Flow state is persisted locally

Token Rotation

Support multiple API tokens per provider for automatic rotation when hitting rate limits (429 errors).

How to Use

Enter multiple tokens in the API settings, separated by English commas (,):

token_1, token_2, token_3

Note: You must use English comma (,), Chinese comma (，) will not work.

How It Works

1. Uses the first available token to make API requests
2. When a 429 (rate limit) error occurs, automatically switches to the next token
3. Exhausted tokens are tracked and skipped for the rest of the day
4. Token status resets daily at UTC 00:00
5. UI shows real-time token statistics (total/active/exhausted)

Quick Start

Prerequisites

• Node.js 18+ / pnpm 9+
• Gitee AI API Key
• A4F API Key (optional)

A4F (api.a4f.co) API Key

1. Register / login at https://www.a4f.co/
2. Create an API key in the A4F dashboard (see docs): https://www.a4f.co/docs
3. In Zenith Settings, select provider A4F and paste the key into the Token field

Notes:

• A4F requires a provider-prefixed model id (e.g. provider-4/imagen-3.5). Zenith exposes these in the model dropdown.
• If you call the OpenAI-compatible endpoint directly, use model: "a4f/provider-4/imagen-3.5" and Authorization: Bearer a4f:<token>.

One-Click Deploy

See Deployment Guide for detailed instructions.

Local Development

git clone https://github.com/WuMingDao/zenith-image-generator.git
cd zenith-image-generator
pnpm install

# Configure environment
cp apps/web/.env.example apps/web/.env

# Terminal 1
pnpm dev:api

# Terminal 2
pnpm dev:web

Open http://localhost:5173

📖 Full Development Guide

API Usage

After deployment, you can call the OpenAI-format API directly:

curl -X POST https://your-project.pages.dev/v1/images/generations \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer gitee:your-gitee-api-key" \
  -d '{
    "model": "gitee/z-image-turbo",
    "prompt": "a cute cat",
    "size": "1024x1024",
    "steps": 9,
    "n": 1,
    "response_format": "url"
  }'

Notes:

• The API returns the raw provider image URL (e.g. HuggingFace Space gradio_api/file=...).
• Some provider URLs are temporary (HF Space files often expire around 24 hours).
• Provider routing is via the model prefix:
  • a4f/... -> A4F (Authorization: Bearer a4f:...)
  • gitee/... -> Gitee AI (Authorization: Bearer gitee:...)
  • ms/... -> ModelScope (Authorization: Bearer ms:...)
  • no prefix -> HuggingFace (token optional; Authorization: Bearer <token> or Authorization: Bearer hf:<token>)

📖 Full API Reference - Providers, parameters, code examples

Documentation

Doc	Description
Contributing	Local setup, LAN access, development
Deployment	Cloudflare, Vercel, Netlify guides
API Reference	Endpoints, parameters, code examples
Providers & Models	All providers and model details

Security

How Your API Keys Are Protected

Browser ──HTTPS──→ Cloudflare Workers ──HTTPS──→ AI Provider (Gitee/HuggingFace)
   ↑                      ↑
AES-256-GCM          Proxy Layer
encrypted            (your deployment)

• Local Encryption: API keys are encrypted with AES-256-GCM before storing in localStorage
• Transport Security: All communications use HTTPS encryption
• Proxy Architecture: Your keys are sent to your own Workers, not directly to AI providers

⚠️ Third-Party Deployment Warning

Important: If you use someone else's deployed instance, the operator can potentially access your API keys.

This is because:

1. The deployment owner can add logging code to capture request headers
2. You cannot verify what code is actually deployed (even if the repo is open source)
3. Cloudflare provides tools like wrangler tail that can inspect live requests

Recommendations:

Scenario	Risk Level	Recommendation
Self-hosted deployment	✅ Safe	Full control over your keys
Third-party instance	⚠️ Risky	Use disposable/low-balance keys only
Unknown source	❌ Unsafe	Do not enter valuable API keys

For maximum security, always deploy your own instance.

Tech Stack

Layer	Tech
Frontend	React 19, Vite, Tailwind CSS, shadcn/ui
Backend	Hono (TypeScript)
Deploy	Cloudflare Pages, Vercel, Netlify

Star History

License

MIT

Acknowledgments

• Gitee AI - z-image-turbo model
• shadcn/ui - UI components
• Hono - Web framework