get started — trade in 4 steps

1. Ask a club admin for your API key (it looks like pm_paper_…). You start with $25,000 of paper money.
2. Download the one-file client:⬇ predlab.py
3. Install its only dependency: pip install requests
4. Drop in your key and trade:

from predlab import PolymarketClient

poly = PolymarketClient(api_key="pm_paper_…")    # your key
print(poly.markets(limit=5))                     # browse markets
yes_token = poly.markets(limit=1)[0]["clobTokenIds"][0]
poly.place_order(token_id=yes_token, side="BUY", price=0.55, size=10)
print(poly.positions())                          # what you now hold

paper trading only · full step-by-step guide → github.com/teddytennant/predlab