Built for real-world scheduling

Some things should happen later — reliably — and sometimes only after a human decision.

Instead of building cron jobs, queues, retries, approval flows, and reminder systems yourself, CallMeLater gives you a single, reliable primitive to schedule actions in the future.

Developer & System

Automated scheduling for your backend

Replace cron jobs, queues, and retry systems with a single API call

Trial Expiration Cleanup

Automatically clean up resources when a trial ends — unless the user upgrades.

Scenario

A user starts a 14-day trial. If they don't upgrade, you must revoke access and clean up data.

Schedule a cleanup webhook at trial_end_at
Cancel the action instantly if the user upgrades
No cron jobs, no background workers to maintain

Delayed Retries Without Cron

Retry an operation hours or days later without keeping state.

Scenario

An external API is down. Retrying every minute is pointless.

Schedule retries with exponential backoff
Attempts and outcomes are fully logged
Your app stays stateless

Grace Period Enforcement

"We'll delete this in 7 days unless..."

Scenario

Compliance rules require a grace period before deletion.

Schedule a deletion action
Send a reminder before execution
Allow snooze or cancellation

Deferred Side Effects

Trigger follow-up actions later — exactly once.

Examples

Delayed partner notifications, post-processing jobs, background audits

One scheduled webhook
Guaranteed attempts
Idempotent execution

External System Follow-Ups

Check back later when another system catches up.

Scenario

You integrate with a system that requires manual review.

Schedule a follow-up check
Reschedule automatically if unresolved
No polling infrastructure required

Coordination

Smarter action management

Group related actions and control how they interact

Replace Previous Deployments

When a new deployment is scheduled, automatically cancel the previous one.

Scenario

CI/CD triggers multiple deployments — only the latest should run.

Group actions with coordination_keys
Use replace_existing to cancel old actions
No duplicates, no race conditions

Prevent Duplicate Notifications

Don't send the same reminder twice if one is already scheduled.

Scenario

User triggers an action multiple times — only one should be scheduled.

Use skip_if_exists to prevent duplicates
Returns existing action instead of creating new
Safe for idempotent retry logic

Track Related Actions

See the history of all actions in a workflow or deployment chain.

Scenario

Debug why a deployment was cancelled or see all actions for a user.

Filter actions by coordination key
See which action replaced another
Full audit trail for compliance

Simple API, powerful results

Schedule a webhook in a single API call. No infrastructure to manage, no workers to maintain, no state to track.

Get Started Free

curl -X POST https://api.callmelater.io/v1/actions \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Trial expiration",
    "schedule": { "wait": "14d" },
    "request": {
      "url": "https://your-app.com/webhooks/trial-expired",
      "method": "POST",
      "body": { "user_id": 42 }
    }
  }'

<?php
$response = Http::withToken('sk_live_...')
    ->post('https://api.callmelater.io/v1/actions', [
        'name' => 'Trial expiration',
        'schedule' => ['wait' => '14d'],
        'request' => [
            'url' => 'https://your-app.com/webhooks/trial-expired',
            'method' => 'POST',
            'body' => ['user_id' => 42],
        ],
    ]);

import requests

response = requests.post(
    "https://api.callmelater.io/v1/actions",
    headers={"Authorization": "Bearer sk_live_..."},
    json={
        "name": "Trial expiration",
        "schedule": {"wait": "14d"},
        "request": {
            "url": "https://your-app.com/webhooks/trial-expired",
            "body": {"user_id": 42},
        },
    },
)

const action = await fetch('https://api.callmelater.io/v1/actions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer sk_live_...',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    name: 'Trial expiration',
    schedule: { wait: '14d' },
    request: {
      url: 'https://your-app.com/webhooks/trial-expired',
      body: { user_id: 42 },
    },
  }),
});

const axios = require('axios');

const { data } = await axios.post(
  'https://api.callmelater.io/v1/actions',
  {
    name: 'Trial expiration',
    schedule: { wait: '14d' },
    request: {
      url: 'https://your-app.com/webhooks/trial-expired',
      body: { user_id: 42 },
    },
  },
  { headers: { Authorization: 'Bearer sk_live_...' } }
);

payload := map[string]interface{}{
    "name": "Trial expiration",
    "schedule": map[string]string{"wait": "14d"},
    "request": map[string]interface{}{
        "url":  "https://your-app.com/webhooks/trial-expired",
        "body": map[string]interface{}{"user_id": 42},
    },
}

body, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://api.callmelater.io/v1/actions", bytes.NewBuffer(body))
req.Header.Set("Authorization", "Bearer sk_live_...")
req.Header.Set("Content-Type", "application/json")

response = HTTParty.post(
  'https://api.callmelater.io/v1/actions',
  headers: { 'Authorization' => 'Bearer sk_live_...' },
  body: {
    name: 'Trial expiration',
    schedule: { wait: '14d' },
    request: {
      url: 'https://your-app.com/webhooks/trial-expired',
      body: { user_id: 42 }
    }
  }.to_json
)

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Human-in-the-Loop

When humans need to decide

Interactive reminders that require confirmation before executing

"Did You Do X?" Reminders

Lightweight accountability without task management tools.

Scenario

You need confirmation that something was done.

Send a reminder email
One-click Yes / No / Snooze
No login required for recipients

Approval Before Action

Require human approval before executing risky actions.

Scenario

A destructive operation must be approved before proceeding.

Reminder is sent instead of execution
"Yes" triggers the webhook
"No" cancels the action

Escalation When No One Responds

If nobody replies, notify someone else.

Scenario

Critical actions cannot be ignored.

Primary reminder sent
Automatic escalation after timeout
Full audit trail

Team Confirmation Workflows

"Everyone must confirm" vs "first response wins."

Scenario

Safety-critical or compliance steps require team sign-off.

Multiple recipients
Configurable confirmation mode
Execution depends on responses

Manual Reminders Without Building an App

Use CallMeLater as a simple reminder engine.

Scenario

You want reminders without building UI or mobile apps.

Create reminders via dashboard or API
Email-based interaction only
No accounts required for recipients

How it works

Simple flows, reliable execution

Scheduled HTTP Action

Create action via API or dashboard

Stored & scheduled in durable queue

Dispatched at time locked for execution

HTTP request sent with retry on failure

Human Approval Flow

Create reminder with recipients

Email sent with Yes/No/Snooze

Recipient responds one-click action

Webhook triggered with response data

Not a task manager. Not a cron replacement.

CallMeLater is a reliable bridge between time, systems, and people — designed to be simple, auditable, and predictable.

Ready to schedule your first action?

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