Project Steve - Secure Workflow Automation API

FastAPI-powered backend for intelligent workflow generation with three-phase processing: Build → QA → Security.

Paste a requirement, get a hardened n8n workflow JSON. Minimal surface, maximum signal.

🚀 Quick Start

Installation

pip install -r requirements.txt

Run Server

uvicorn app.main:app --reload

Production-ready workflow generation in seconds.

✨ Core Features

• 🔄 Three-Phase Pipeline - Build → QA → Security validation
• ⚡ Instant JSON - Convert prompts to n8n workflows instantly
• 🛡️ API Key Auth - Secure endpoints with X-API-Key
• 📊 Structured Logging - JSON-formatted request tracking
• 🌐 CORS Ready - Works with any frontend
• 💾 In-Memory Storage - Fast, stateless management
• 📥 Export Workflows - Download as JSON files
• 📚 Interactive Docs - Swagger & ReDoc built-in

📁 Architecture

app/
├── main.py                    # FastAPI + middleware + static files
├── routes/
│   └── workflow.py           # 5 workflow endpoints
├── services/
│   └── workflow_service.py   # 3-phase logic
├── schemas.py                # Pydantic models
├── auth.py                   # API key authentication
└── logger.py                 # JSON logging

� Three-Phase Processing

Phase 1: Build 🏗️

Creates workflow architecture with nodes, connections, and requirements

Phase 2: QA ✅

Validates structure, transforms naming, runs 4 compliance checks

Phase 3: Security 🛡️

Adds timeout, retries, rate limiting, SSL verification, SSRF prevention

💡 Usage

Web UI

1. Open http://localhost:8000
2. Type your requirement
3. Click "Generate & Download JSON"
4. Three phases execute automatically
5. JSON downloads instantly

📦 Tech Stack

• Framework: FastAPI 0.104.1
• Server: Uvicorn 0.24.0
• Validation: Pydantic 2.5.0
• Config: python-dotenv 1.0.0
• Frontend: Vanilla HTML/CSS/JS

✅ Status

Production Ready

• All endpoints tested
• Full error handling
• Security headers configured
• Documentation complete
• Workflows stored in-memory

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Project Steve — FastAPI Backend | Intelligent Workflow Automation | 2026