The gform_rest_api_capability_post_entries filter allows you to modify the capability required to create entries via the Gravity Forms REST API v2.
Usage
add_filter('gform_rest_api_capability_post_entries', 'your_function_name', 10, 2);
Parameters
- $capability (string): The capability required. Defaults to ‘gravityforms_edit_entries’.
- $request (WP_REST_Request): Full data about the request.
More information
See Gravity Forms Docs: gform_rest_api_capability_post_entries
Examples
Change the required capability to a custom capability
This example changes the required capability to ‘my_custom_capability’ for creating entries via the REST API v2.
add_filter('gform_rest_api_capability_post_entries', 'get_post_entries_capability', 10, 2);
function get_post_entries_capability($capability, $request) {
    return 'my_custom_capability';
}
Allow users with a specific role to create entries via the REST API
This example allows users with the ‘editor’ role to create entries via the REST API v2.
add_filter('gform_rest_api_capability_post_entries', 'allow_editor_post_entries', 10, 2);
function allow_editor_post_entries($capability, $request) {
    return 'edit_posts';
}
Allow users with a custom capability to create entries
This example allows users with the ‘create_custom_entries’ capability to create entries via the REST API v2.
add_filter('gform_rest_api_capability_post_entries', 'allow_custom_capability_post_entries', 10, 2);
function allow_custom_capability_post_entries($capability, $request) {
    return 'create_custom_entries';
}
Check the user role and allow specific users to create entries
This example allows only administrators and editors to create entries via the REST API v2.
add_filter('gform_rest_api_capability_post_entries', 'allow_specific_roles_post_entries', 10, 2);
function allow_specific_roles_post_entries($capability, $request) {
    $user = wp_get_current_user();
    if (in_array('administrator', $user->roles) || in_array('editor', $user->roles)) {
        return 'gravityforms_edit_entries';
    }
    return '';
}
Allow users with a specific email domain to create entries
This example allows users with an email address from the ‘example.com’ domain to create entries via the REST API v2.
add_filter('gform_rest_api_capability_post_entries', 'allow_email_domain_post_entries', 10, 2);
function allow_email_domain_post_entries($capability, $request) {
    $user = wp_get_current_user();
    $email_domain = substr(strrchr($user->user_email, "@"), 1);
    if ($email_domain === 'example.com') {
        return 'gravityforms_edit_entries';
    }
    return '';
}