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# tokenIDs

The token IDs currently available in the system.

```
var tokenIDs: [String] { get }
```

## Discussion

Each string in [`tokenIDs`](/documentation/CryptoTokenKit/TKTokenWatcher/tokenIDs) corresponds to the name of the token instance.

You can observe this property to be notified of additions and removals to system tokens. See [Key-Value Observing Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/KeyValueObserving/KeyValueObserving.html#//apple_ref/doc/uid/10000177i) for more information.

---

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