callbk.me is a scheduled callback service. Tell us what to send and when, and we hold it until the time comes, then deliver it to your queue, topic, or endpoint. No cron jobs, no timers, no infrastructure to babysit.
500 events every month, free. No credit card to start.
Create a callback with a payload, a fire time, and the precision that fits your use case. Each event points at a profile that says where to deliver it.
Your event waits safely until it's due. Nothing runs on your side, and nothing fires early.
When the time comes we deliver your callback with automatic retries, and track it through to completion.
A profile is a reusable delivery destination — an SNS topic, an SQS queue, or a webhook. Set one up once, then point as many events at it as you like. Change where callbacks land by editing the profile, not every event.
If a callback can't be delivered, we retry it a few times. If it still won't go through, that event is marked failed and the profile is automatically disabled — so a broken destination can't silently burn through every event queued behind it. Fix the target, re-enable the profile, and you're back in business.
Every event carries a precision. Tighter timing takes more to run, so choosing the loosest tier that works keeps things fast and cheap.
Delivered around the time you asked for. Great for reminders, digests, and cleanups where an approximate time is fine.
Fires within half an interval of the requested time. A dependable default for most workloads.
Tight, per-event timing for when the moment matters — delivered within about ten seconds of the target, allowing for network and queueing delay.
A profile can point at any destination you already use.
Publish to an SNS topic and fan out to every subscriber you've wired up.
Drop the callback straight onto an SQS queue, in any region, for your workers to pick up.
Call your HTTPS endpoint directly. Landing soon.
Start with 500 events per month free. Beyond that you pay only for what you deliver, priced by precision, so you never pay for headroom you don't use.