Monitor APIs

API checks require more configuration than simple website checks. Here's how to set up effective API monitoring.

Configure your check

Set a frequent check interval (every 1 minute recommended for APIs):

Set up the HTTP request

Configure OnlineOrNot to make a real API request with proper headers and body:

See Request Settings for all available options.

Add assertions

APIs can return HTTP 200 even when things are broken. Use assertions to verify the response data is correct:

See Assertions for all assertion types and comparisons.

Configure advanced settings

Set the check to monitor from a region close to your database for fastest results. Consider requiring multiple failed checks before alerting:

Set up alerts

Configure where you want to receive notifications:

Available alert channels:

• Email (enabled by default)
• Slack
• Discord
• SMS
• Webhooks
• PagerDuty
• Opsgenie