Instrument identifier tokens represent tokenized payment account numbers. Tokenized payment account information includes a primary account number (PAN) for card payments, or a US or Canadian bank account number and routing number for an ACH bank account. An instrument identifier token can exist independently, or it can be associated with a payment instrument.

An instrument identifier token can also contain an associated network token. You can create, retrieve, update, or delete an instrument identifier by submitting an HTTP POST, GET, PATCH, or DELETE operation to the /tms/v1/instrumentidentifiers endpoint.