{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/CardInstrument", "title": "Card Instrument", "type": "object", "properties": { "type": { "type": "string", "description": "Type of instrument.", "enum": [ "stored_card" ] }, "token": { "type": "string", "description": "An identifier representing this stored instrument.", "example": "84596bea275fa254da820056bdc3e495bdf01fd11c51b0336347d447ee16200c" }, "is_default": { "type": "boolean", "description": "Identifies whether this stored instrument is default for the customer." }, "brand": { "type": "string", "description": "Card brand.", "example": "VISA" }, "expiry_month": { "maximum": 12, "minimum": 1, "type": "integer", "description": "Expiry month for this card." }, "expiry_year": { "type": "integer", "description": "Expiry year for this card." }, "issuer_identification_number": { "type": "string", "description": "Issuer identification number for this card.", "example": "411111" }, "last_4": { "type": "string", "description": "Last four digits of this card.", "example": "1111" }, "billing_address": { "$ref": "#/components/schemas/BillingAddress" } }, "description": "Details about a stored card instrument which includes details around billing, last 4 digits, issuer, etc.", "x-internal": false }