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

# relyingPartyIdentifier

The Relying Party to register the passkey with, generally a domain name.

## Declaration

```swift
final let relyingPartyIdentifier: String
```