Title: AiClient::defaultRegistry
Published: May 20, 2026

---

# AiClient::defaultRegistry(): WordPressAiClientProvidersProviderRegistry

## In this article

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

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

Gets the default provider registry instance.

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

 WordPressAiClientProvidersProviderRegistry The default provider registry.

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

    ```php
    public static function defaultRegistry(): ProviderRegistry
    {
        if (self::$defaultRegistry === null) {
            self::$defaultRegistry = new ProviderRegistry();
        }
        return self::$defaultRegistry;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/aiclient.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/AiClient.php#L107)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/AiClient.php#L107-L113)

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

| Used by | Description | 
| [AiClient::isConfigured()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/isconfigured/)`wp-includes/php-ai-client/src/AiClient.php` |

Checks if a provider is configured and available for use.

  | 
| [AiClient::prompt()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/prompt/)`wp-includes/php-ai-client/src/AiClient.php` |

Creates a new prompt builder for fluent API usage.

  | 
| [_wp_connectors_get_connector_script_module_data()](https://developer.wordpress.org/reference/functions/_wp_connectors_get_connector_script_module_data/)`wp-includes/connectors.php` |

Exposes connector settings to the connectors-wp-admin script module.

  | 
| [_wp_connectors_pass_default_keys_to_ai_client()](https://developer.wordpress.org/reference/functions/_wp_connectors_pass_default_keys_to_ai_client/)`wp-includes/connectors.php` |

Passes stored connector API keys to the WP AI client.

  | 
| [_wp_connectors_register_default_ai_providers()](https://developer.wordpress.org/reference/functions/_wp_connectors_register_default_ai_providers/)`wp-includes/connectors.php` |

Registers connectors for the built-in AI providers.

  | 
| [_wp_connectors_is_ai_api_key_valid()](https://developer.wordpress.org/reference/functions/_wp_connectors_is_ai_api_key_valid/)`wp-includes/connectors.php` |

Checks whether an API key is valid for a given provider.

  | 
| [wp_ai_client_prompt()](https://developer.wordpress.org/reference/functions/wp_ai_client_prompt/)`wp-includes/ai-client.php` |

Creates a new AI prompt builder using the default provider registry.

  |

[Show 2 more](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/defaultregistry/?output_format=md#)
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## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/defaultregistry/?output_format=md#changelog)󠁿

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

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