Migrate from Vercel Cron Jobs

Find your cron routes in vercel.json

Open your vercel.json and find the "crons" array. Note each path and schedule.

// vercel.json
{
  "crons": [
    { "path": "/api/cron/cleanup", "schedule": "0 * * * *" },
    { "path": "/api/cron/reports", "schedule": "0 9 * * 1" }
  ]
}

Add authentication to your cron routes

Protect each route with a shared secret so only JustRun can call it.

// app/api/cron/cleanup/route.ts
export async function GET(req: Request) {
  const auth = req.headers.get("x-cron-secret");
  if (auth !== process.env.CRON_SECRET) {
    return Response.json({ error: "Unauthorized" }, { status: 401 });
  }
  // ... your cron logic
}

Create JustRun jobs

For each cron route, create a JustRun job: URL = your Vercel deployment URL + path, schedule = same cron expression, add the x-cron-secret header.

Remove crons from vercel.json

Delete the "crons" block from vercel.json and redeploy. Schedules now live in JustRun — change them without deploying.

Set up escalation policies

Configure Slack, Discord, or PagerDuty alerts — Vercel cron has no failure notifications.