ONE-TIME SETUP · NO INSTALL, NO PYTHON

Connect your data worker

This page has no backend of its own — market data comes through a small free Cloudflare Worker that you deploy once (it keeps your Alpaca API keys off the browser, which every real data provider requires). Takes about 3 minutes the first time.

  1. Go to dash.cloudflare.com, sign up free, open Workers & Pages → Create → Create Worker, give it a name, click Deploy.
  2. Click Edit code, delete the default script, paste in worker.js from the download (open it in any text editor to copy it), click Deploy again.
  3. Go to Settings → Variables and Secrets → Add. Add ALPACA_API_KEY and ALPACA_API_SECRET as Secrets (your free keys from alpaca.markets).
  4. Copy your worker's URL (looks like https://your-name.workers.dev) and paste it below.