Api referenceHealth Server URLloading...GET/healthSendResponse Body200application/jsoncURLJavaScriptGoPythonJavaC#curl -X GET "https://zend.sh/api/v1/health"200{ "status": "ok" }Email WarmupAutomatically warm up new mailboxes with a 28-day ramp schedule to establish sender reputation before cold outreach.List API keysNext Page