rest_url_prefix filter-hook . WP 4.4.0

Filters the REST URL prefix.

Usage

add_filter( 'rest_url_prefix', 'filter_function_name_7601' );
function filter_function_name_7601( $prefix ){
	// filter...

	return $prefix;
}

$prefix(string)

URL prefix.
Default: 'wp-json'

Where the hook is called

return apply_filters( 'rest_url_prefix', 'wp-json' );

Where the hook is used (in WP core)