| Problem | Likely Fix | |---------|-------------| | “Invalid API key” | Check key at polygon.io/dashboard. Free keys start with a specific prefix. | | No data for a symbol | Ensure symbol is supported on your plan (e.g., free tier excludes some indices/crypto). | | Chart not updating | Refresh page and re-enter API key. Check browser console (F12) for CORS or 403 errors. | | WebSocket connection fails | Some corporate firewalls block WS. Use the “REST only” mode if available. |
Polytrack is a free, open-source, web-based dashboard for visualizing real-time and historical market data from Polygon.io. Hosted at polytrack.github.io, it provides a clean, interactive interface to track stocks, indices, forex, and crypto without needing to build your own frontend. polytrack github io
Think of it as a lightweight, customizable "Bloomberg-lite" terminal for developers and traders who already use or want to test Polygon.io’s data APIs. | Problem | Likely Fix | |---------|-------------| |
The project appears to be an independent creation, likely a solo or small-team effort. From the GitHub repo and commit history, PolyTrack is both a portfolio piece and a genuine playable game. The GitHub page hosts: The community around it is small but engaged,
The community around it is small but engaged, with user-submitted tracks and suggestions for new mechanics.