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Extending the OpenID Discovery API

Published: October 4, 2018 | Updated: December 3rd, 2018
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To extend the OpenID Discovery API, you have the option to use WordPress’s filter API. Below is an example of how to extend the OpenID Discovery API and add a new parameter to the response of “new_value_key”.

function modify_openid_discovery_api( $return ) {
    $return['new_discovery_value'] = array(
        'new_value_key' => 'Some value'

    return $return;

add_filter( 'wo_openid_discovery', 'modify_openid_discovery_api' );