10 Compute Units.
Reference: Here
Parameters
The optional query parameters:currency- string, optional.
specifies a currency of returned rate (“usd”, “eur”, “eth”…). If not specified, all available currencies will be returned.
timestamp- string, optional.
a Unix timestamp, e.g. 1704070861 , that specifies a date to return currency rates for. If not specified, the last available rate will be returned.