Weekly checks
A weekly check crawls a site every week and emails you what it found. It comes with a paid plan, and you make one from a crawl you already ran. Nothing runs and nothing is counted until its first run, a week later. Everything here goes through $client->monitors(), and the API's site checks guide has what each check does.
PHP
$monitor = $client->monitors()->create($crawl);
echo $monitor->nextRunAt->format('c');
Making one from a crawl that already has a check hands back that check rather than making another.
PHP
$client->monitors()->list(); // every check, oldest first, never paged
$client->monitors()->get($id);
$client->monitors()->update($monitor, ['emails' => false]); // keeps it running without the emails
$client->monitors()->delete($monitor);
$monitor->lastRun?->savedPercent; // the crawl it last ran