Exchange rate
Sources: Phase 2 で 公的中央銀行 / public FX API 追加予定 (ToS verify 必須).
No dedicated news source for this category in the current build. rei-aios.pages.dev/data/studystoa-feed/latest.json currently ships philosophy / thought / education / learning categories only — stock + fx sources are scheduled for a later Phase 2 of the data bridge.
Central-bank news (BOJ / FSA / ECB) is available on the Finance page →
Public news sites for this category (direct, no embedding / no tracker / no affiliate):