---
title: relyingPartyIdentifier
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/aspasskeycredentialidentity/relyingpartyidentifier
---

# relyingPartyIdentifier

A string that identifies this identity’s relying party.

## Declaration

```swift
var relyingPartyIdentifier: String { get }
```

## Discussion

Discussion A passkey credential identity reports its relyingPartyIdentifier value as its serviceIdentifier.