Title: wp_prepare_json_schema_for_client
Published: August 20, 2026

---

# wp_prepare_json_schema_for_client( $schema, string $schema_profile = 'draft-04' ): array<string,

## In this article

 * [Description](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#changelog)

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

Prepares a JSON Schema for clients.

## 󠀁[Description](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#description)󠁿

Use this before exposing a schema outside of WordPress’s server-side validation,
for example in REST responses, Ability metadata, or AI provider requests. The prepared
schema uses forms that JSON Schema draft-04 clients can understand.

WordPress-internal schema conveniences are converted or removed only where needed
to keep the exposed schema valid for the selected profile.

## 󠀁[Parameters](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#parameters)󠁿

mixed> $schema The schema array.

`$schema_profile`stringoptional

Name of the schema profile whose keywords should be preserved.
 Default `'draft-
04'`.

Default:`'draft-04'`

## 󠀁[Return](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#return)󠁿

 array<string, mixed> The prepared schema.

## 󠀁[Source](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#source)󠁿

    ```php
    function wp_prepare_json_schema_for_client( array $schema, string $schema_profile = 'draft-04' ): array {
    	$allowed_keywords = array_fill_keys( wp_get_json_schema_allowed_keywords( $schema_profile ), true );

    	return _wp_prepare_json_schema_for_client_with_allowed_keywords( $schema, $allowed_keywords );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/json-schema.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/json-schema.php#L90)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/json-schema.php#L90-L94)

## 󠀁[Related](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#related)󠁿

| Uses | Description | 
| [wp_get_json_schema_allowed_keywords()](https://developer.wordpress.org/reference/functions/wp_get_json_schema_allowed_keywords/)`wp-includes/json-schema.php` |

Gets the JSON Schema keywords allowed for a given schema profile.

  | 
| [_wp_prepare_json_schema_for_client_with_allowed_keywords()](https://developer.wordpress.org/reference/functions/_wp_prepare_json_schema_for_client_with_allowed_keywords/)`wp-includes/json-schema.php` |

Prepares a JSON Schema for clients using a given keyword lookup.

  |

| Used by | Description | 
| [WP_AI_Client_Prompt_Builder::using_abilities()](https://developer.wordpress.org/reference/classes/wp_ai_client_prompt_builder/using_abilities/)`wp-includes/ai-client/class-wp-ai-client-prompt-builder.php` |

Registers WordPress abilities as function declarations for the AI model.

  | 
| [WP_REST_Abilities_V1_List_Controller::prepare_item_for_response()](https://developer.wordpress.org/reference/classes/wp_rest_abilities_v1_list_controller/prepare_item_for_response/)`wp-includes/rest-api/endpoints/class-wp-rest-abilities-v1-list-controller.php` |

Prepares an ability for response.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/functions/wp_prepare_json_schema_for_client/?output_format=md#changelog)󠁿

| Version | Description | 
| [7.1.0](https://developer.wordpress.org/reference/since/7.1.0/) | Introduced. |

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