Title: ProviderRegistry::getProviderRequestAuthentication
Published: May 20, 2026

---

# ProviderRegistry::getProviderRequestAuthentication( string|WordPressAiClientProvidersclass-string $idOrClassName ): WordPressAiClientProviders?RequestAuthenticationInterface

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#wp--skip-link--target)

Gets the request authentication instance for the given provider, if set.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#parameters)󠁿

 `$idOrClassName`string|<span class="WordPressAiClientProvidersclass-string”>WordPressAiClientProvidersclass-
stringrequired

The provider ID or class name.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#return)󠁿

 WordPressAiClientProviders?RequestAuthenticationInterface The request authentication
instance, or null if not set.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#source)󠁿

    ```php
    public function getProviderRequestAuthentication(string $idOrClassName): ?RequestAuthenticationInterface
    {
        $className = $this->resolveProviderClassName($idOrClassName);
        if (!isset($this->providerAuthenticationInstances[$className])) {
            return null;
        }
        return $this->providerAuthenticationInstances[$className];
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/providers/providerregistry.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Providers/ProviderRegistry.php#L341)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Providers/ProviderRegistry.php#L341-L348)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#related)󠁿

| Uses | Description | 
| [ProviderRegistry::resolveProviderClassName()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/resolveproviderclassname/)`wp-includes/php-ai-client/src/Providers/ProviderRegistry.php` |

Gets the class name for a registered provider (handles both ID and class name input).

  |

| Used by | Description | 
| [ProviderRegistry::bindModelDependencies()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/bindmodeldependencies/)`wp-includes/php-ai-client/src/Providers/ProviderRegistry.php` |

Binds dependencies to a model instance.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-providerregistry/getproviderrequestauthentication/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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