---
title: credentialID
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/asimportablecredential/passkey/credentialid
---

# credentialID

The credential ID associated with this passkey.

## Declaration

```swift
var credentialID: Data
```

## See Also

### Accessing passkey properties

- [relyingPartyIdentifier](authenticationservices/asimportablecredential/passkey/relyingpartyidentifier.md)
- [userName](authenticationservices/asimportablecredential/passkey/username.md)
- [userDisplayName](authenticationservices/asimportablecredential/passkey/userdisplayname.md)
- [userHandle](authenticationservices/asimportablecredential/passkey/userhandle.md)
- [key](authenticationservices/asimportablecredential/passkey/key.md)