Convert a list of 9-character US CUSIPs into ISINs.
Inputs that do not match the 9-character CUSIP format are returned with isin: null.
Since all other endpoints require ISINs, this endpoint is useful to convert identifiers to ISINs before using other endpoints.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
List of 9-character US CUSIPs to convert to ISINs.
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