Functions
Monitor Clerk with MrCron
MrCron mirrors Clerk total users, signup counts, and active session counts every 5 minutes so you can watch auth health alongside errors and analytics.
How MrCron monitors Clerk
- Total users on your Clerk instance.
- Signup count for the last 24 hours.
- Active session count at the last sync.
- Auth-failure detection with an amber Rotate key CTA when the secret key stops working.
- Alert rules that fire on signup thresholds via any notification channel.
What you will see
Total users, signups (24h), active sessions on your project card.
Auth flow: API Key. Credentials are stored encrypted at rest with AES-256-GCM and never returned to your browser.
Start monitoring Clerk
Sign in, create a project, and connect Clerk in under a minute. First check ships in the free tier.
Frequently asked questions
- What Clerk credentials does MrCron need?
- A Clerk secret key from the API keys page in the Clerk dashboard. MrCron stores it encrypted at rest and only decrypts it inside the sync worker.
- Does MrCron read user records?
- No. MrCron reads aggregate counts (total users, signups, sessions). Individual user records are never fetched.
- How fresh is the signup count?
- Refreshed every 5 minutes on the shared sync cycle. The count is a rolling 24h total.
- Can I alert on a signup drop?
- Yes. Create an alert rule on the clerk_signups_24h metric with a threshold below your baseline and route it to any notification channel.