Data sources
| Provider | Role |
|---|---|
| SoSoValue | Stock catalog, snapshots, klines, primary news |
| Finnhub | Company news, perp index prices |
| CryptoPanic | Crypto headlines |
| RSS | Google News, CoinDesk when API keys are absent |
Market snapshots and bootstrap payloads are cached server-side. News ingests on NEWS_SYNC_INTERVAL_MS and on demand. Without SOSOVALUE_API_KEY, the app falls back to a limited demo ticker set.