Raw JSON snapshots of Bank of China exchange rates, updated every 30 minutes. This is the data CDN — for the public site with charts and an API reference, go to https://bocurrencyprice.techina.science.
Direct file URL pattern:
https://data-bocurrencyprice.techina.science/BOC_CURRENCY_PRICE/<CCY>/<YYYYMMDD>.json
For example: https://data-bocurrencyprice.techina.science/BOC_CURRENCY_PRICE/USD/20260425.json