Current coverage
Start with dependable delayed coverage.
Marketstack supplies licensed historical prices and previous-close changes for U.S. equities and ETF index proxies. We cache the data responsibly and label delayed figures clearly.
Market data strategy
Delayed data today, with a path to real time.
Market Master begins with useful delayed datasets and upgrades only the experiences that genuinely need licensed, low-latency delivery.
Launch providerMarketstackScale providerMassiveKeysServer-side only
Future coverage
Upgrade time-sensitive products.
If licensing, load testing, and genuine demand justify it, Massive could support intraday U.S. equities, live trades, quotes and bars, WebSocket streams, and delivery limited to entitled users.
Data integrity
Every number carries context.
Identify
Show provider and asset symbol.
Timestamp
Display when the dataset was observed.
Qualify
Mark delayed, stale, or fallback data.
Protect
Keep credentials off the browser and WordPress markup.
Migration gates
Real-time data needs a clear purpose.
Before adding an intraday feed, we need to confirm that a feature genuinely needs the faster data and that its commercial license permits the intended display. Caching, quotas, and failure handling must pass load tests. Only then would the feed become available to users entitled to that experience.