<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -",
    "macCatalyst: 26.0.0 -",
    "visionOS: 26.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CryptoTokenKit",
  "identifier" : "/documentation/CryptoTokenKit/TKSmartCardSlotNFCSession",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "CryptoTokenKit"
    ],
    "preciseIdentifier" : "c:objc(cs)TKSmartCardSlotNFCSession"
  },
  "title" : "TKSmartCardSlotNFCSession"
}
-->

# TKSmartCardSlotNFCSession

NFC session that’s related to NFC smart card slot which was created.

```
class TKSmartCardSlotNFCSession
```

## Overview\discussion Lifetime of this session object is tied to the NFC smart card slot lifetime
and once the NFC slot disappears (eg. after a user cancellation, calling end session, or an NFC timeout)
the functions will start to fail and return `TKErrorCodeObjectNotFound` error.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)