Data providers & freshness
ON THIS PAGE
Every market-data need sits behind a fallback chain of free sources — if the first provider fails or starts turning requests away (free sources cap how often you can ask), the next steps in. No paid vendor, no surprise data bill, and no one outage can take the whole feed down:
| Data | Chain |
|---|---|
| Daily bars (each day’s price history) | Stooq → Tiingo → yfinance |
| Quotes | Alpaca IEX → Finnhub → yfinance |
| Crypto | Alpaca → Binance public → CoinGecko |
| Company financials (fundamentals) and SEC filings (8-K event reports, Form 4 insider trades) | SEC EDGAR |
| Economic data (interest rates, inflation) — FRED is the Federal Reserve’s public database | FRED |
Freshness
Screens that depend on external data show a freshness indicator, and when a whole chain is struggling, a stale banner showing when data last came through successfully. SleeveFolio prefers loudly stale over quietly wrong — see Stale data & provider outages.
Your daily budget
Free sources ration requests, so data requests draw from your plan’s daily data budget — 50 a day on Free, 200 on Pro.