---
title: excludedCredentials
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/aspasskeycredentialrequest/excludedcredentials
---

# excludedCredentials

A list of IDs that represent existing passkeys for the account, to prevent creation of duplicate passkeys.

## Declaration

```swift
var excludedCredentials: [ASAuthorizationPlatformPublicKeyCredentialDescriptor]? { get }
```

## Discussion

Discussion This value corresponds to the WebAuthn parameter excludeCredentials.