AIgument-backend

Tech stack: Python + FastAPI + Anthropic AI

Setup

1. Create and activate a virtual environment

Windows (PowerShell):

cd backend
python -m venv .venv
.venv\Scripts\Activate.ps1

If you get "running scripts is disabled", do -

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope Process

macOS / Linux:

cd backend
python -m venv .venv
source .venv/bin/activate

2. Install dependencies

pip install -r requirements.txt

3. Environment variables (.env in project root)

Add a .env file in the project root (parent of backend/) with:

ANTHROPIC_API_KEY=your-api-key-here
CORS_ORIGINS=http://localhost:3000

Optional: CORS_ORIGINS — Comma-separated allowed frontend origins (default: http://localhost:3000). For production, set e.g. https://yourdomain.com.

The app loads these via python-dotenv. Do not commit .env.

Run

From the project root:

fastapi dev main.py