Automattic / jetpack

		$key_status = Akismet::check_key_status( empty( $api_key ) ? Akismet::get_api_key() : $api_key );

		if ( ! $key_status || 'invalid' === $key_status || 'failed' === $key_status ) {

			return rest_ensure_response( array(

				'validKey'          => false,

				'invalidKeyCode'    => 'invalid_key',

				'invalidKeyMessage' => esc_html__( 'Invalid Akismet key. Please contact support.', 'jetpack' ),

			) );

		}

		return rest_ensure_response( array(

			'validKey' => isset( $key_status[1] ) && 'valid' === $key_status[1]

		require_once WP_PLUGIN_DIR . '/akismet/class.akismet-admin.php';

		$akismet_key = Akismet::verify_key( Akismet::get_api_key() );

		if ( ! $akismet_key || 'invalid' === $akismet_key || 'failed' === $akismet_key ) {

			return new WP_Error( 'invalid_key', esc_html__( 'Invalid Akismet key. Please contact support.', 'jetpack' ), array( 'status' => 400 ) );

		}

		return true;

	}