# Service API > Using the cronjob service from other modules --- Neighboring modules query the module's state through a stable, read-only facade (`CronjobService`) instead of its internal services. Check availability first - the module may not be installed, and the class is only autoloadable when its module.php has been loaded:

<?php
use Schwendinger\Webtrees\Module\Cronjob\Services\CronjobService;

if (class_exists(CronjobService::class) && CronjobService::isFunctional()) {
    $status = CronjobService::jobStatus('mymodule:backup'); // null = unknown job
    $age = CronjobService::lastTickAge();                // seconds since last tick
    $listened = CronjobService::listenedEvents();             // event name => job names
}

| Question | Method(s) | | --- | --- | | Is the service functional? | `isFunctional()`, `problems()` (codes: `module_disabled`, `not_migrated`, `cron_library_missing`, `tick_stale`) | | Which features are enabled? | `features()` (`watch`, `pseudo_events`, `route_events`), `watchStatus()` | | When did the last tick run? | `lastTick()` / `lastTickAge()` - both trigger types (marker file `data/cronjob/tick.last`) | | Is a job enabled / when did it last run? | `isJobEnabled($name)`, `jobStatus($name)`, `lastRun($name)` - job names are namespaced (`:`) | | Which events are listened for? | `listenedEvents()`, `listenersFor($event)`; catalogs: `eventCatalog()`, `pseudoEvents()`, `routeEvents()` | | Actions (the only two) | `runJobNow($name)` (queued at the next tick), `pushEvent($name, $payload)` (event queue) | Contract: read-only methods never throw when the schema is missing (safe defaults), descriptions are source strings (never pre-translated), and `lastRun()` deliberately excludes the job output, which may contain personal data.