This plugin uses CoinGecko API. Users can choose either XYMUSD or XYMJPY. The endpoint of CoinGecko API which this plugin uses is: https://api.coingecko.com/api/v3/simple/price?ids=symbol&vs_currencies=jpy,usd About CoinGecko API This plugin uses CoinGecko API. https://www.coingecko.com/en/api It is not required to register coingecko.com, however if you use this API, it is assumed that you have agreed the terms and conditions. https://www.coingecko.com/en/terms