Primary Sources
Binance API (real-time BTC price), FRED (US macro data), ECB Statistical Data Warehouse (European data), CSO Ireland (Irish statistics), Eurostat (EU-wide data), Yahoo Finance (equities), CoinGecko (crypto market data).
Update Frequency
Bitcoin price: real-time via WebSocket. Macro data: daily or weekly depending on source publication schedule. Irish property data: quarterly from CSO. Central bank data: weekly from official publications.