What is API Monitoring?

An API monitor sends a real HTTP request to an endpoint and checks the response against assertions you define. Use it to verify your API returns the right data, not merely that it answered.

Request

• Method — GET, POST, PUT, PATCH, or DELETE.
• URL — the full endpoint.
• Headers — including Authorization for bearer tokens or API keys, or basic auth.
• Body — a JSON payload or form data for write methods.

Assertions

All assertions must pass, or the monitor is marked down:

• Status code in the expected range.
• Response time under a threshold.
• Header value matches.
• JSON body — assert on nested fields using dot notation, e.g. data.user.active == true.

Multi-step flows

Chain requests and pass values between them — authenticate in step one, use the token in step two, assert on the result of step three — to monitor a real flow rather than a single endpoint.

Safety

Credentials are encrypted and never exposed in alerts or logs. Failures are confirmed from multiple regions before alerting. See the API monitoring page for more.