Catch API Failures Before They Break Your Product
Your application depends on APIs — yours and third-party ones. CronJobPro monitors every endpoint on a schedule, verifies response integrity, and alerts you the moment something drifts from expected behavior.
API Failures Cascade Into User-Facing Outages
APIs fail silently. A payment gateway returns 503s, a data feed goes stale, or an internal service slows to a crawl. Without active monitoring, you discover these issues when features break in production.
- ✗Third-party API outages go undetected until users report broken features in your app
- ✗Internal microservices degrade slowly and nobody notices until cascading failures hit
- ✗No easy way to verify that API responses contain the expected data structure
- ✗Manually pinging endpoints is tedious and impossible to sustain across dozens of services
Continuous API Verification on Autopilot
Set up scheduled HTTP requests to every API your application depends on. CronJobPro checks status codes, measures response times, and logs full response details so you always know the health of your API ecosystem.
Real-Time Monitoring
Track response times, status codes, and availability trends for every API endpoint in a single dashboard.
HMAC Signing
Authenticate your health check requests with HMAC webhook signatures so your API can verify they come from CronJobPro.
Circuit Breaker
Automatically pause checks when an endpoint is confirmed down, preventing unnecessary load and alert storms during extended outages.
How to Set It Up
- 1
Add each API endpoint as a separate cron job
Create a cron job for each API you need to monitor. Set the HTTP method (GET, POST, etc.) and add any required authentication headers.
- 2
Define the check schedule based on criticality
Mission-critical payment APIs might need per-minute checks, while data feeds can be verified every 15 minutes.
- 3
Configure HMAC signing for authenticated endpoints
Enable HMAC webhook signing so your API can verify that health check requests are legitimate and not spoofed traffic.
- 4
Set up alert channels for each service tier
Route critical API failures to Slack and email immediately. Send non-critical alerts to a Discord channel for async review.
Recommended Schedules
| Expression | Schedule |
|---|---|
| * * * * * | Check critical APIs every minute |
| */5 * * * * | Monitor standard APIs every 5 minutes |
| */15 * * * * | Verify third-party APIs every 15 minutes |
Start Automating Now
Set up api health check monitoring in under 2 minutes. Free forever for up to 5 jobs.
Frequently Asked Questions
Can I send custom headers and authentication tokens with health checks?
Yes. Each cron job supports custom HTTP headers, so you can include Bearer tokens, API keys, or any authentication your endpoint requires.
How do I monitor APIs that require POST requests with a body?
CronJobPro supports all HTTP methods. You can configure POST, PUT, or PATCH requests with custom JSON or form-encoded request bodies.
What happens if my API is temporarily slow but not down?
You can set timeout thresholds. If an API responds but takes longer than your configured limit, it counts as a failure and triggers retry logic.
Can I monitor APIs behind a firewall?
CronJobPro sends requests from known IP ranges that you can whitelist in your firewall. Contact support for the current list of egress IPs.
Related Use Cases
Website Uptime Monitoring
CronJobPro pings your website on a schedule you define and alerts your team the moment something goes wrong. With automatic retries and multi-channel notifications, you catch outages before they cost you customers.
API Polling & Scheduled Requests
Not every service offers webhooks. CronJobPro polls APIs on your defined schedule, forwarding fresh data to your endpoints so your systems always have the latest information without building custom polling infrastructure.